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Bynum JPW, Benloucif S, Martindale J, O'Malley AJ, Davis MA. Regional variation in diagnostic intensity of dementia among older U.S. adults: An observational study. Alzheimers Dement 2024. [PMID: 39149970 DOI: 10.1002/alz.14092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 05/01/2024] [Accepted: 06/03/2024] [Indexed: 08/17/2024]
Abstract
INTRODUCTION Geographic variation in diagnosed cases of Alzheimer's disease and related dementias (ADRD) could be due to underlying population risk or differences in intensity of new case identification. Areas with low ADRD diagnostic intensity could be targeted for additional surveillance efforts. METHODS Medicare claims were used for a cohort of older adults across hospital referral regions (HRRs). ADRD-specific regional diagnosis intensity was measured as the ratio of expected new ADRD cases (estimated using population demographics, risk factors, and practice intensity) compared to observed ADRD-diagnosed cases. RESULTS Crude new ADRD diagnosis rate ranged from 1.7 to 5.4 per 100 across HRRs. ADRD-specific diagnosis intensity ranged from 0.69 to 1.47 and varied most for Black, Hispanic, and the youngest (66-74) subgroups. Across all subgroups, ADRD diagnosis intensity was associated with 2-fold difference in receiving an ADRD diagnosis. DISCUSSION Where one resides influences the likelihood of receiving an ADRD diagnosis, particularly among those 66-74 years of age and minoritized groups. HIGHLIGHTS Rate of new Alzheimer's disease and related dementias (ADRD) case identification varies geographically across the United States. Variation in case identification is greatest in Black, Hispanic, and young-old groups. Intensity of diagnosis (ie, case identification) unrelated to population risk differs across place. Likelihood of receiving an ADRD diagnosis varies 2-fold based on place of residence.
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Affiliation(s)
- Julie P W Bynum
- Department of Internal Medicine, 1500 East Medical Center Dr Ann Arbor, University of Michigan Medical School, Ann Arbor, Michigan, USA
- Institute for Healthcare Policy and Innovation, University of Michigan, 2800 Plymouth Rd, Ann Arbor, Michigan, USA
- Geisel School of Medicine, The Dartmouth Institute for Health Policy and Clinical Practice, 1 Medical Center Dr Lebanon, Hanover, New Hampshire, USA
| | - Slim Benloucif
- Department of Internal Medicine, 1500 East Medical Center Dr Ann Arbor, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Jonathan Martindale
- Department of Internal Medicine, 1500 East Medical Center Dr Ann Arbor, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - A James O'Malley
- Geisel School of Medicine, The Dartmouth Institute for Health Policy and Clinical Practice, 1 Medical Center Dr Lebanon, Hanover, New Hampshire, USA
- Department of Biomedical Data Science, 1 Rope Ferry Rd, Geisel School of Medicine, Hanover, New Hampshire, USA
| | - Matthew A Davis
- Institute for Healthcare Policy and Innovation, University of Michigan, 2800 Plymouth Rd, Ann Arbor, Michigan, USA
- University of Michigan School of Nursing, Department of Systems, Populations, and Leadership, 400 North Ingalls Building, Ann Arbor, Michigan, USA
- Department of Learning Health Sciences, University of Michigan Medical School, Ann Arbor, Michigan, USA
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Pollack LR, Nomitch JT, Downey L, Paul SR, Reed MJ, Uyeda AM, Kiker WA, Dotolo DG, Dzeng E, Lee RY, Engelberg RA, Kross EK. Mechanical Ventilation in Older Adults With Dementia: Opportunities to Promote Goal-Concordant Care. J Pain Symptom Manage 2024; 68:142-152.e2. [PMID: 38685288 PMCID: PMC11239300 DOI: 10.1016/j.jpainsymman.2024.04.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 02/07/2024] [Accepted: 04/20/2024] [Indexed: 05/02/2024]
Abstract
CONTEXT Recent studies show increasing use of mechanical ventilation among people living with dementia. There are concerns that this trend may not be driven by patient preferences. OBJECTIVES To better understand decision-making regarding mechanical ventilation in people living with dementia. METHODS This was an electronic health record-based retrospective cohort study of older adults with dementia (n = 295) hospitalized at one of two teaching hospitals between 2015 and 2019 who were supported with mechanical ventilation (n = 191) or died without mechanical ventilation (n = 104). Multivariable logistic regression was used to examine associations between patient characteristics and mechanical ventilation use. RESULTS The median age was 78 years (IQR 71-86), 41% were female, 28% resided in a nursing home, and 58% had clinical markers of advanced dementia (dehydration, weight loss, mobility limitations, or pressure ulcers). Among patients supported with mechanical ventilation, 70% were intubated within 24 hours of presentation, including 31% intubated before hospital arrival. Younger age, higher illness acuity, and absence of a treatment-limiting Physician Orders for Life-Sustaining Treatment document were associated with mechanical ventilation use; nursing home residence and clinical markers of advanced dementia were not. Most patients (89%) had a documented goals of care discussion (GOCD) during hospitalization. CONCLUSION Future efforts to promote goal-concordant care surrounding mechanical ventilation use for people living with dementia should involve identifying barriers to goal-concordant care in pre-hospital settings, assessing the timeliness of in-hospital GOCD, and developing strategies for in-the-moment crisis communication across settings.
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Affiliation(s)
- Lauren R Pollack
- Division of Pulmonary (L.R.P., J.T.M., A.M.U., W.A.K., R.Y.L., R.A.E., E.K.K.), Critical Care, and Sleep Medicine, University of Washington, Seattle, Washington, USA; Cambia Palliative Care Center of Excellence (L.R.P., J.T.M., A.M.U., W.A.K., D.G.D. R.Y.L., R.A.E., E.K.K.), University of Washington, Seattle, Washington, USA.
| | - Jamie T Nomitch
- Division of Pulmonary (L.R.P., J.T.M., A.M.U., W.A.K., R.Y.L., R.A.E., E.K.K.), Critical Care, and Sleep Medicine, University of Washington, Seattle, Washington, USA; Cambia Palliative Care Center of Excellence (L.R.P., J.T.M., A.M.U., W.A.K., D.G.D. R.Y.L., R.A.E., E.K.K.), University of Washington, Seattle, Washington, USA
| | - Lois Downey
- Cambia Palliative Care Center of Excellence (L.R.P., J.T.M., A.M.U., W.A.K., D.G.D. R.Y.L., R.A.E., E.K.K.), University of Washington, Seattle, Washington, USA
| | - Sudiptho R Paul
- University of Washington School of Medicine (S.R.P.), Seattle, Washington, USA
| | - May J Reed
- Division of Geriatric Medicine (M.J.R.), University of Washington, Seattle, Washington, USA
| | - Alison M Uyeda
- Division of Pulmonary (L.R.P., J.T.M., A.M.U., W.A.K., R.Y.L., R.A.E., E.K.K.), Critical Care, and Sleep Medicine, University of Washington, Seattle, Washington, USA; Cambia Palliative Care Center of Excellence (L.R.P., J.T.M., A.M.U., W.A.K., D.G.D. R.Y.L., R.A.E., E.K.K.), University of Washington, Seattle, Washington, USA
| | - Whitney A Kiker
- Division of Pulmonary (L.R.P., J.T.M., A.M.U., W.A.K., R.Y.L., R.A.E., E.K.K.), Critical Care, and Sleep Medicine, University of Washington, Seattle, Washington, USA; Cambia Palliative Care Center of Excellence (L.R.P., J.T.M., A.M.U., W.A.K., D.G.D. R.Y.L., R.A.E., E.K.K.), University of Washington, Seattle, Washington, USA
| | - Danae G Dotolo
- Cambia Palliative Care Center of Excellence (L.R.P., J.T.M., A.M.U., W.A.K., D.G.D. R.Y.L., R.A.E., E.K.K.), University of Washington, Seattle, Washington, USA
| | - Elizabeth Dzeng
- Department of Medicine (E.D.), University of California San Francisco, San Francisco, California, USA
| | - Robert Y Lee
- Division of Pulmonary (L.R.P., J.T.M., A.M.U., W.A.K., R.Y.L., R.A.E., E.K.K.), Critical Care, and Sleep Medicine, University of Washington, Seattle, Washington, USA; Cambia Palliative Care Center of Excellence (L.R.P., J.T.M., A.M.U., W.A.K., D.G.D. R.Y.L., R.A.E., E.K.K.), University of Washington, Seattle, Washington, USA
| | - Ruth A Engelberg
- Division of Pulmonary (L.R.P., J.T.M., A.M.U., W.A.K., R.Y.L., R.A.E., E.K.K.), Critical Care, and Sleep Medicine, University of Washington, Seattle, Washington, USA; Cambia Palliative Care Center of Excellence (L.R.P., J.T.M., A.M.U., W.A.K., D.G.D. R.Y.L., R.A.E., E.K.K.), University of Washington, Seattle, Washington, USA
| | - Erin K Kross
- Division of Pulmonary (L.R.P., J.T.M., A.M.U., W.A.K., R.Y.L., R.A.E., E.K.K.), Critical Care, and Sleep Medicine, University of Washington, Seattle, Washington, USA; Cambia Palliative Care Center of Excellence (L.R.P., J.T.M., A.M.U., W.A.K., D.G.D. R.Y.L., R.A.E., E.K.K.), University of Washington, Seattle, Washington, USA
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Xu S, Fouladi‐Nashta N, Chen Y, Zissimopoulos J. Dementia severity at incident diagnosis in a population representative sample of older Americans. ALZHEIMER'S & DEMENTIA (NEW YORK, N. Y.) 2024; 10:e12491. [PMID: 38988415 PMCID: PMC11231736 DOI: 10.1002/trc2.12491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/28/2024] [Accepted: 05/30/2024] [Indexed: 07/12/2024]
Abstract
INTRODUCTION We provide the first analysis of distribution of dementia severity at incident diagnosis for a population representative sample of older Americans. METHODS Using data from the Aging, Demographics, and Memory Study (ADAMS), the Health Retirement Study (HRS), and traditional Medicare claims, we estimated the Clinical Dementia Rating Scale for ADAMS respondents and applied parameter estimates to predict dementia severity for HRS respondents with claims-based incident dementia diagnosis. RESULTS Seventy percent of older adults received a dementia diagnosis of mild cognitive impairment or mild dementia (early stages). Fewer individuals were diagnosed at early stages in years 2000 to 2008 (65%) compared to years 2009 to 2016 (76%). About 72% of non-Hispanic white persons were diagnosed at early stages, compared to 63% non-Hispanic black and 59% Hispanic persons. More males than females were diagnosed at early stages (75% vs 67%). DISCUSSION These data linkages allow population surveillance of early and equitable dementia detection in the older US population to assess clinical and policy levers to improve detection. Highlights For the US population 70 and older, 30% were diagnosed with dementia at a moderate or severe stage.Fewer were diagnosed at early stages in years 2000 to 2008 compared to 2009 to 2016 (65% vs 76%).A total of 72% of white persons were diagnosed at early stages, compared to 63% black and 59% Hispanic persons.More males than females were diagnosed at early stages (75% vs 67%).High wealth and education level were associated with diagnosis at early stages disease.
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Affiliation(s)
- Shengjia Xu
- Price School of Public PolicyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
- Leonard D. Schaeffer Center for Health Policy & EconomicsUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Niloofar Fouladi‐Nashta
- Leonard D. Schaeffer Center for Health Policy & EconomicsUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Yi Chen
- Rush Alzheimer's Disease CenterChicagoIllinoisUSA
| | - Julie Zissimopoulos
- Price School of Public PolicyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
- Leonard D. Schaeffer Center for Health Policy & EconomicsUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
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Zhu CW, Schneider LS, Elder GA, Soleimani L, Grossman HT, Aloysi A, Schimming C, Sano M. Neuropsychiatric Symptom Profile in Alzheimer's Disease and Their Relationship With Functional Decline. Am J Geriatr Psychiatry 2024:S1064-7481(24)00375-0. [PMID: 39013750 DOI: 10.1016/j.jagp.2024.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 06/18/2024] [Accepted: 06/19/2024] [Indexed: 07/18/2024]
Abstract
OBJECTIVE Understanding the course of individual neuropsychiatric symptoms (NPS) and their relationship with function is important for planning targeted interventions for preventing and delaying functional decline. This study aims to disentangle relative contributions of individual NPS on functional decline. METHODS Longitudinal study of 9,358 well-characterized participants with baseline diagnoses of Mild Cognitive Impairment or AD in the National Alzheimer's Coordinating Center Uniform Data Set. Function was measured using the Functional Assessment Questionnaire (FAQ). Clinician judgment of seven common behavioral symptoms were examined simultaneously: apathy-withdrawal, depressed mood, visual or auditory hallucinations, delusions, disinhibition, irritability, and agitation. RESULTS Apathy was the most common NPS at baseline (33.7%) and throughout follow-up, endorsed by clinicians in 63.7% of visits. Apathy was the most persistent with 36.7% of participants having clinician-endorsed apathy in ≥50% of their visits. Apathy strongly correlated with faster rate of functional decline. Compared to those who never had apathy, baseline FAQ was worse in those with intermittent or persistent/always apathy (intermittent: estimated coefficient ±SE=1.228±0.210, 95% CI=[0.817, 1.639]; persistent/always: 2.354±0.244 (95% CI=[1.876, 2.832], both p <0.001). Over time, rate of functional decline was faster in those with intermittent and persistent/always apathy (intermittent: 0.454±0.091, 95% CI=[0.276, 0.632]; persistent/always: 0.635±0.102, 95% CI=[0.436, 0.835], both p <0.001). Worse agitation, delusions, and hallucinations also correlated with functional decline, but magnitudes of the estimates were smaller. CONCLUSION Individual NPS may be sensitive targets for tracking longitudinal change in function. The study raises awareness of the need for more comprehensive assessment of functional decline in AD patients with noncognitive symptoms.
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Affiliation(s)
- Carolyn W Zhu
- Brookdale Department of Geriatrics and Palliative Medicine (CWZ), Icahn School of Medicine at Mount Sinai, New York, NY; James J Peters VA Medical Center (CWZ, GAE, HTG, CS, MS), Bronx, NY; Department of Psychiatry, (CWZ, GAE, LS, HTG, AA, CS, MS), Alzheimer Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY.
| | - Lon S Schneider
- Department of Psychiatry, Neurology, and Gerontology (LSS), Keck School of Medicine and Leonard Davis School of Gerontology, University of Southern, CA
| | - Gregory A Elder
- James J Peters VA Medical Center (CWZ, GAE, HTG, CS, MS), Bronx, NY; Department of Psychiatry, (CWZ, GAE, LS, HTG, AA, CS, MS), Alzheimer Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Laili Soleimani
- Department of Psychiatry, (CWZ, GAE, LS, HTG, AA, CS, MS), Alzheimer Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Hillel T Grossman
- James J Peters VA Medical Center (CWZ, GAE, HTG, CS, MS), Bronx, NY; Department of Psychiatry, (CWZ, GAE, LS, HTG, AA, CS, MS), Alzheimer Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Amy Aloysi
- Department of Psychiatry, (CWZ, GAE, LS, HTG, AA, CS, MS), Alzheimer Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Corbett Schimming
- James J Peters VA Medical Center (CWZ, GAE, HTG, CS, MS), Bronx, NY; Department of Psychiatry, (CWZ, GAE, LS, HTG, AA, CS, MS), Alzheimer Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Mary Sano
- James J Peters VA Medical Center (CWZ, GAE, HTG, CS, MS), Bronx, NY; Department of Psychiatry, (CWZ, GAE, LS, HTG, AA, CS, MS), Alzheimer Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY
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Chen Y, Power MC, Grodstein F, Capuano AW, Lange-Maia BS, Moghtaderi A, Stapp EK, Bhattacharyya J, Shah RC, Barnes LL, Marquez DX, Bennett DA, James BD. Correlates of missed or late versus timely diagnosis of dementia in healthcare settings. Alzheimers Dement 2024. [PMID: 38934297 DOI: 10.1002/alz.14067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/16/2024] [Accepted: 05/20/2024] [Indexed: 06/28/2024]
Abstract
INTRODUCTION There is limited evidence about factors related to the timeliness of dementia diagnosis in healthcare settings. METHODS In five prospective cohorts at Rush Alzheimer's Disease Center, we identified participants with incident dementia based on annual assessments and examined the timing of healthcare diagnoses in Medicare claims. We assessed sociodemographic, health, and psychosocial correlates of timely diagnosis. RESULTS Of 710 participants, 385 (or 54%) received a timely claims diagnosis within 3 years prior to or 1 year following dementia onset. In logistic regressions accounting for demographics, we found Black participants (odds ratio [OR] = 2.15, 95% confidence interval [CI]: 1.21 to 3.82) and those with better cognition at dementia onset (OR = 1.48, 95% CI: 1.10 to 1.98) were at higher odds of experiencing a diagnostic delay, whereas participants with higher income (OR = 0.89, 95% CI: 0.81 to 0.97) and more comorbidities (OR = 0.94, 95% CI: 0.89 to 0.98) had lower odds. DISCUSSION We identified characteristics of individuals who may miss the optimal window for dementia treatment and support. HIGHLIGHTS We compared the timing of healthcare diagnosis relative to the timing of incident dementia based on rigorous annual evaluation. Older Black adults with lower income, higher cognitive function, and fewer comorbidities were less likely to be diagnosed in a timely manner by the healthcare system.
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Affiliation(s)
- Yi Chen
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
| | - Melinda C Power
- Department of Epidemiology, George Washington University, Washington, DC, USA
| | - Francine Grodstein
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Ana W Capuano
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Brittney S Lange-Maia
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Family and Preventive Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Ali Moghtaderi
- Department of Health Policy and Management, George Washington University, Washington, DC, USA
| | - Emma K Stapp
- Department of Epidemiology, George Washington University, Washington, DC, USA
| | - Joya Bhattacharyya
- Department of Epidemiology, George Washington University, Washington, DC, USA
| | - Raj C Shah
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Family and Preventive Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Lisa L Barnes
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
- Department of Psychiatry and Behavioral Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - David X Marquez
- Department of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, Illinois, USA
| | - David A Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Bryan D James
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
- Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
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Lassell RKF, Tamayo V, Pena TA, Kishi M, Zwerling J, Gitlin LN, Brody AA. "When she goes out, she feels better:" co-designing a Green Activity Program with Hispanic/Latino people living with memory challenges and care partners. Front Aging Neurosci 2024; 16:1401255. [PMID: 38957542 PMCID: PMC11217360 DOI: 10.3389/fnagi.2024.1401255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 05/28/2024] [Indexed: 07/04/2024] Open
Abstract
Purpose Utilizing a participatory approach, we sought to co-design a 12-week Green Activity Program (GAP) with Hispanic/Latino individuals living with memory challenges and their care partners, local outdoor professionals, and healthcare providers. Methods Participants were recruited via convenience and snowball sampling in the Bronx, New York with Hispanic/Latino persons living with memory challenges and care partners, outdoor activity professionals, and interdisciplinary healthcare providers/dementia experts. Co-design occurred iteratively with 5 focus groups and 4 individual interviews lasting 30-90 min and focused on program and research design. Sessions were recorded and transcribed. Utilizing directed content analysis data was coded using a priori codes program design and research design. Results 21 participants completed co-design activities: (n = 8 outdoor activity professionals, n = 6 Hispanic/Latino persons living with memory challenges and care partners, and n = 7 interdisciplinary healthcare providers/dementia experts). Participant preferences for program design were captured by subcodes session duration (30-90 min), frequency (4-8 sessions), and delivery modes (in-person and phone). Participants' preferred nature activities included group exercise and outdoor crafts [crocheting], outcomes of social participation, connectedness to nature, decreased loneliness, and stewardship were identified. Preferred language for recruiting and describing the program were "memory challenges," "Hispanic/Latino," and "wellbeing." Referral pathways were identified including community-based organizations and primary care. Conclusion Co-design was a successful form of engagement for people living with memory challenges that enabled participants to help design key elements of the GAP and research design. Our processes, findings, and recommendations for tailoring co-design to engage Hispanic/Latino people living with memory challenges can inform the development of other programs for this population.
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Affiliation(s)
- Rebecca K. F. Lassell
- Department of Health and Wellness Design, School of Public Health, Indiana University, Bloomington, IN, United States
- Regenstrief Institute, Indiana University Center for Aging Research, Indianapolis, IN, United States
- Hartford Institute for Geriatric Nursing (HIGN), NYU Rory Meyers College of Nursing, New York, NY, United States
| | - Valeria Tamayo
- Department of Health and Wellness Design, School of Public Health, Indiana University, Bloomington, IN, United States
- Department of Art and Art Professions, NYU Steinhardt, New York, NY, United States
| | - Triana A. Pena
- Hartford Institute for Geriatric Nursing (HIGN), NYU Rory Meyers College of Nursing, New York, NY, United States
| | - Misa Kishi
- Arthur S. Abramson Department of Rehabilitation Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Jessica Zwerling
- The Saul R. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Laura N. Gitlin
- College of Nursing and Health Professions, Drexel University, Philadelphia, PA, United States
| | - Abraham A. Brody
- Hartford Institute for Geriatric Nursing (HIGN), NYU Rory Meyers College of Nursing, New York, NY, United States
- Division of Geriatric Medicine and Palliative Care, Department of Medicine, NYU Grossman School of Medicine, New York, NY, United States
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Deardorff WJ, Diaz-Ramirez LG, Boscardin WJ, Smith AK, Lee SJ. Around the EQUATOR with Clin-STAR: Prediction modeling opportunities and challenges in aging research. J Am Geriatr Soc 2024; 72:1658-1668. [PMID: 38032070 PMCID: PMC11137550 DOI: 10.1111/jgs.18704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 10/16/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023]
Abstract
The 2015 Transparent Reporting of a multivariable prediction model for Individual Prognosis Or Diagnosis (TRIPOD) Statement was published to improve reporting transparency for prediction modeling studies. The objective of this review is to highlight methodologic challenges that aging-focused researchers will encounter when designing and reporting studies involving prediction models for older adults and provide guidance for addressing these challenges. In following the 22-item TRIPOD checklist, researchers must consider the representativeness of cohorts used (e.g., whether older adults with frailty, cognitive impairment, and social isolation were included), strategies for incorporating common geriatric predictors (e.g., age, comorbidities, functional status, and frailty), methods for handling missing data and competing risk of death, and assessment of model performance heterogeneity across important subgroups (e.g., age, sex, race, and ethnicity). We provide guidance to help aging-focused researchers develop, validate, and report models that can inform and improve patient care, which we label "TRIPOD-65."
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Affiliation(s)
- W. James Deardorff
- Division of Geriatrics, University of California, San
Francisco, San Francisco, California
- San Francisco Veterans Affairs Medical Center, San
Francisco, California
| | - L. Grisell Diaz-Ramirez
- Division of Geriatrics, University of California, San
Francisco, San Francisco, California
- San Francisco Veterans Affairs Medical Center, San
Francisco, California
| | - W. John Boscardin
- Division of Geriatrics, University of California, San
Francisco, San Francisco, California
- San Francisco Veterans Affairs Medical Center, San
Francisco, California
- Department of Epidemiology and Biostatistics, University of
California, San Francisco, San Francisco, California
| | - Alexander K. Smith
- Division of Geriatrics, University of California, San
Francisco, San Francisco, California
- San Francisco Veterans Affairs Medical Center, San
Francisco, California
| | - Sei J. Lee
- Division of Geriatrics, University of California, San
Francisco, San Francisco, California
- San Francisco Veterans Affairs Medical Center, San
Francisco, California
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Pollack LR, Downey L, Nomitch JT, Lee RY, Engelberg RA, Weiss NS, Kross EK, Khandelwal N. Factors Associated with Costly Hospital Care among Patients with Dementia and Acute Respiratory Failure. Ann Am Thorac Soc 2024; 21:907-915. [PMID: 38323911 PMCID: PMC11160134 DOI: 10.1513/annalsats.202308-694oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 02/05/2024] [Indexed: 02/08/2024] Open
Abstract
Rationale: Understanding contributors to costly and potentially burdensome care for patients with dementia is of interest to healthcare systems and may facilitate efforts to promote goal-concordant care. Objective: To identify risk factors, in particular whether an early goals-of-care discussion (GOCD) took place, for high-cost hospitalization among patients with dementia and acute respiratory failure. Methods: We conducted an electronic health record-based retrospective cohort study of 298 adults with dementia hospitalized with respiratory failure (receiving ⩾48 h of mechanical ventilation) within an academic healthcare system. We collected demographic and clinical characteristics, including clinical markers of advanced dementia (weight loss, pressure ulcers, hypernatremia, mobility limitations) and intensive care unit (ICU) service (medical, surgical, neurologic). We ascertained whether a GOCD was documented within 48 hours of ICU admission. We used logistic regression to identify patient characteristics associated with high-cost hospitalization measured using the hospital system accounting database and defined as total cost in the top third of the sample (⩾$145,000). We examined a path model that included hospital length of stay as a final mediator between exposure variables and high-cost hospitalization. Results: Patients in the sample had a median age of 71 (IQR, 62-79) years. Approximately half (49%) were admitted to a medical ICU, 29% to a surgical ICU, and 22% to a neurologic ICU. More than half (59%) had a clinical indicator of advanced dementia. A minority (31%) had a GOCD documented within 48 hours of ICU admission; those who did had a 50% lower risk of a high-cost hospitalization (risk ratio, 0.50; 95% confidence interval, 0.2-0.8). Older age, limited English proficiency, and nursing home residence were associated with a lower likelihood of high-cost hospitalization, whereas greater comorbidity burden and admission to a surgical or neurologic ICU compared with a medical ICU were associated with a higher likelihood of high-cost hospitalization. Conclusions: Early GOCDs for patients with dementia and respiratory failure may promote high-value care by ensuring aggressive and costly life support interventions are aligned with patients' goals. Future work should focus on increasing early palliative care delivery for patients with dementia and respiratory failure, in particular in surgical and neurologic ICU settings.
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Affiliation(s)
- Lauren R. Pollack
- Division of Pulmonary, Critical Care, and Sleep Medicine
- Cambia Palliative Care Center of Excellence, UW Medicine, Seattle, Washington
| | - Lois Downey
- Cambia Palliative Care Center of Excellence, UW Medicine, Seattle, Washington
| | - Jamie T. Nomitch
- Division of Pulmonary, Critical Care, and Sleep Medicine
- Cambia Palliative Care Center of Excellence, UW Medicine, Seattle, Washington
| | - Robert Y. Lee
- Division of Pulmonary, Critical Care, and Sleep Medicine
- Cambia Palliative Care Center of Excellence, UW Medicine, Seattle, Washington
| | - Ruth A. Engelberg
- Division of Pulmonary, Critical Care, and Sleep Medicine
- Cambia Palliative Care Center of Excellence, UW Medicine, Seattle, Washington
| | | | - Erin K. Kross
- Division of Pulmonary, Critical Care, and Sleep Medicine
- Cambia Palliative Care Center of Excellence, UW Medicine, Seattle, Washington
| | - Nita Khandelwal
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, Washington; and
- Cambia Palliative Care Center of Excellence, UW Medicine, Seattle, Washington
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9
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Jacobson M, Ferido P, Zissimopoulos J. Health care utilization before and after a dementia diagnosis in Medicare Advantage versus traditional Medicare. J Am Geriatr Soc 2024; 72:1856-1866. [PMID: 37668467 PMCID: PMC10912367 DOI: 10.1111/jgs.18570] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 07/12/2023] [Accepted: 08/03/2023] [Indexed: 09/06/2023]
Abstract
BACKGROUND Half of all Medicare beneficiaries are enrolled in Medicare Advantage (MA). Many studies document lower care utilization and mortality in MA than traditional Medicare (TM), but evidence for persons with Alzheimer's disease and related dementias (ADRD) is limited. METHODS We conducted a retrospective cohort study of 2015-2018 Medicare claims and encounter data for community-dwelling beneficiaries aged 65 and over in TM and MA with an incident ADRD diagnosis in 2017. We compared monthly hospitalization rates and outpatient visits 12 months before and after diagnosis and mortality 1 year from diagnosis. Models adjusted for sociodemographic characteristics and comorbidities. Sensitivity analyses addressed residual confounding using a control group with incident arthritis/glaucoma or excluding MA Special Needs Plans, and potential underreporting by restricting to MA plans with high data completeness. RESULTS Among 454,508 beneficiaries diagnosed with ADRD in 2017, 250,837 (55%) were in TM and 203,671 (45%) in MA. Four to 12 months before diagnosis, monthly hospitalizations and outpatient visits were similar in TM and MA. In the diagnosis month, 36.5% of beneficiaries in TM had a hospitalization compared with 25.4% in MA, an adjusted difference of 10.7 percentage points [95% CI: 10.3, 11.1]. Beneficiaries in TM averaged 10.5 outpatient visits in the diagnosis month compared with 8.4 in MA, an adjusted difference of 1.59 visits [95% CI: 1.47-1.70]. Utilization differences narrowed but remained higher in TM for many months. One-year mortality was 27.9% in TM and 22.2% in MA; an adjusted odds ratio of 1.152 [95% CI: 1.135-1.169] for those in TM compared with MA. Controlling for hospitalization in the diagnosis month substantially reduced the mortality difference. CONCLUSION Hospitalization rates and outpatient visits increased more after an ADRD diagnosis in TM than MA. One-year post-diagnosis, mortality was not higher in MA than TM but comparisons of quality of life and caregiver burden are needed.
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Affiliation(s)
- Mireille Jacobson
- Andrus School of Gerontology & Schaeffer Center, University of Southern California
| | - Patricia Ferido
- Price School of Public Policy & Schaeffer Center, University of Southern California
| | - Julie Zissimopoulos
- Price School of Public Policy & Schaeffer Center, University of Southern California
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10
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2024 Alzheimer's disease facts and figures. Alzheimers Dement 2024; 20:3708-3821. [PMID: 38689398 PMCID: PMC11095490 DOI: 10.1002/alz.13809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
This article describes the public health impact of Alzheimer's disease (AD), including prevalence and incidence, mortality and morbidity, use and costs of care and the ramifications of AD for family caregivers, the dementia workforce and society. The Special Report discusses the larger health care system for older adults with cognitive issues, focusing on the role of caregivers and non-physician health care professionals. An estimated 6.9 million Americans age 65 and older are living with Alzheimer's dementia today. This number could grow to 13.8 million by 2060, barring the development of medical breakthroughs to prevent or cure AD. Official AD death certificates recorded 119,399 deaths from AD in 2021. In 2020 and 2021, when COVID-19 entered the ranks of the top ten causes of death, Alzheimer's was the seventh-leading cause of death in the United States. Official counts for more recent years are still being compiled. Alzheimer's remains the fifth-leading cause of death among Americans age 65 and older. Between 2000 and 2021, deaths from stroke, heart disease and HIV decreased, whereas reported deaths from AD increased more than 140%. More than 11 million family members and other unpaid caregivers provided an estimated 18.4 billion hours of care to people with Alzheimer's or other dementias in 2023. These figures reflect a decline in the number of caregivers compared with a decade earlier, as well as an increase in the amount of care provided by each remaining caregiver. Unpaid dementia caregiving was valued at $346.6 billion in 2023. Its costs, however, extend to unpaid caregivers' increased risk for emotional distress and negative mental and physical health outcomes. Members of the paid health care and broader community-based workforce are involved in diagnosing, treating and caring for people with dementia. However, the United States faces growing shortages across different segments of the dementia care workforce due to a combination of factors, including the absolute increase in the number of people living with dementia. Therefore, targeted programs and care delivery models will be needed to attract, better train and effectively deploy health care and community-based workers to provide dementia care. Average per-person Medicare payments for services to beneficiaries age 65 and older with AD or other dementias are almost three times as great as payments for beneficiaries without these conditions, and Medicaid payments are more than 22 times as great. Total payments in 2024 for health care, long-term care and hospice services for people age 65 and older with dementia are estimated to be $360 billion. The Special Report investigates how caregivers of older adults with cognitive issues interact with the health care system and examines the role non-physician health care professionals play in facilitating clinical care and access to community-based services and supports. It includes surveys of caregivers and health care workers, focusing on their experiences, challenges, awareness and perceptions of dementia care navigation.
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11
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Chyr LC, Wolff JL, Zissimopoulos JM, Drabo EF. Analysis of agreement between measures of subjective cognitive impairment and probable dementia in the National Health and Aging Trends Study. Alzheimers Dement 2024; 20:2817-2829. [PMID: 38426381 PMCID: PMC11032562 DOI: 10.1002/alz.13758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 01/03/2024] [Accepted: 01/29/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Subjective cognitive impairment (SCI) measures in population-based surveys offer potential for dementia surveillance, yet their validation against established dementia measures is lacking. METHODS We assessed agreement between SCI and a validated probable dementia algorithm in a random one-third sample (n = 1936) of participants in the 2012 National Health and Aging Trends Study (NHATS). RESULTS SCI was more prevalent than probable dementia (12.2% vs 8.4%). Agreement between measures was 90.0% and of substantial strength. Misclassification rates were higher among older and less-educated subgroups due to higher prevalence of false-positive misclassification but did not vary by sex or race and ethnicity. DISCUSSION SCI sensitivity (63.4%) and specificity (92.5%) against dementia were comparable with similar metrics for the NHATS probable dementia measure against the "gold-standard" Aging, Demographics, and Memory Study-based dementia criteria, implying that population-based surveys may afford cost-effective opportunities for dementia surveillance to assess risk and inform policy. HIGHLIGHTS The prevalence of subjective cognitive impairment (SCI) is generally higher than that of a validated measure of probable dementia, particularly within the youngest age group, females, Whites, and persons with a college or higher degree. Percent agreement between SCI and a validated measure of probable dementia was 90.0% and of substantial strength (prevalence- and bias-adjusted kappa, 0.80). Agreement rates were higher in older and less-educated subgroups, driven by the higher prevalence of false-positive disagreement, but did not vary significantly by sex or race and ethnicity. SCI's overall sensitivity and specificity were 63.4% and 92.5%, respectively, against a validated measure of probable dementia, suggesting utility as a low-cost option for dementia surveillance. Heterogeneity in agreement quality across subpopulations warrants caution in its use for subgroup analyses.
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Affiliation(s)
- Linda C. Chyr
- Enterprise Analytics Core, Elevance Health, Inc.WilmingtonDelawareUSA
| | - Jennifer L. Wolff
- Department of Health Policy and ManagementJohn Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
| | - Julie M. Zissimopoulos
- Sol Price School of Public PolicyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
- Leonard D. Schaeffer Center for Health PolicyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Emmanuel F. Drabo
- Department of Health Policy and ManagementJohn Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
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Olchanski N, Zhu Y, Liang L, Cohen JT, Faul JD, Fillit HM, Freund KM, Lin PJ. Racial and ethnic differences in disease course Medicare expenditures for beneficiaries with dementia. J Am Geriatr Soc 2024; 72:1223-1233. [PMID: 38504583 PMCID: PMC11018481 DOI: 10.1111/jgs.18822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 01/16/2024] [Accepted: 01/28/2024] [Indexed: 03/21/2024]
Abstract
BACKGROUND Research on racial and ethnic disparities in costs of care during the course of dementia is sparse. We analyzed Medicare expenditures for beneficiaries with dementia to identify when during the course of care costs are the highest and whether they differ by race and ethnicity. METHODS We analyzed data from the 2000-2016 Health and Retirement Study (HRS) linked with corresponding Medicare claims to estimate total Medicare expenditures for four phases: (1) the year before a dementia diagnosis, (2) the first year following a dementia diagnosis, (3) ongoing care for dementia after the first year, and (4) the last year of life. We estimated each patient's phase-specific and disease course Medicare expenditures by using a race-specific survival model and monthly expenditures adjusted for patient characteristics. We investigated healthcare utilization by service type across races/ethnicities and phases of care. RESULTS Adjusted mean total Medicare expenditures for non-Hispanic (NH) Black ($165,730) and Hispanic beneficiaries with dementia ($160,442) exceeded corresponding expenditures for NH Whites ($136,326). In the year preceding and immediately following initial dementia diagnosis, mean Medicare expenditures for NH Blacks ($26,337 and $20,429) exceeded expenditures for Hispanics and NH Whites ($21,399-23,176 and 17,182-18,244). The last year of life was responsible for the greatest cost contribution: $51,294 (NH Blacks), $47,469 (Hispanics), and $39,499 (NH Whites). These differences were driven by greater use of high-cost services (e.g., emergency department, inpatient and intensive care), especially during the last year of life. CONCLUSIONS NH Black and Hispanic beneficiaries with dementia had higher disease course Medicare expenditures than NH Whites. Expenditures were highest for NH Black beneficiaries in every phase of care. Further research should address mechanisms of such disparities and identify methods to improve communication, shared decision-making, and access to appropriate services for all populations.
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Affiliation(s)
- Natalia Olchanski
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts, USA
- Department of Medicine, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Yingying Zhu
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts, USA
| | - Lichen Liang
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts, USA
| | - Joshua T Cohen
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts, USA
- Department of Medicine, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Jessica D Faul
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, Michigan, USA
| | - Howard M Fillit
- Alzheimer's Drug Discovery Foundation, New York, New York, USA
| | - Karen M Freund
- Department of Medicine, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Pei-Jung Lin
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts, USA
- Department of Medicine, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA
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Hinton L, Tran D, Peak K, Meyer OL, Quiñones AR. Mapping racial and ethnic healthcare disparities for persons living with dementia: A scoping review. Alzheimers Dement 2024; 20:3000-3020. [PMID: 38265164 PMCID: PMC11032576 DOI: 10.1002/alz.13612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 08/25/2023] [Accepted: 11/25/2023] [Indexed: 01/25/2024]
Abstract
INTRODUCTION We set out to map evidence of disparities in Alzheimer's disease and Alzheimer's disease related dementias healthcare, including issues of access, quality, and outcomes for racial/ethnic minoritized persons living with dementia (PLWD) and family caregivers. METHODS We conducted a scoping review of the literature published from 2000 to 2022 in PubMed, PsycINFO, and CINAHL. The inclusion criteria were: (1) focused on PLWD and/or family caregivers, (2) examined disparities or differences in healthcare, (3) were conducted in the United States, (4) compared two or more racial/ethnic groups, and (5) reported quantitative or qualitative findings. RESULTS Key findings include accumulating evidence that minoritized populations are less likely to receive an accurate and timely diagnosis, be prescribed anti-dementia medications, and use hospice care, and more likely to have a higher risk of hospitalization and receive more aggressive life-sustaining treatment at the end-of-life. DISCUSSION Future studies need to examine underlying processes and develop interventions to reduce disparities while also being more broadly inclusive of diverse populations.
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Affiliation(s)
- Ladson Hinton
- School of MedicineUniversity of CaliforniaDavisSacramentoCaliforniaUSA
| | - Duyen Tran
- School of MedicineUniversity of CaliforniaDavisSacramentoCaliforniaUSA
| | - Kate Peak
- Department of Family MedicineOregon Health & Science University (OHSU)PortlandOregonUSA
| | - Oanh L. Meyer
- School of MedicineUniversity of CaliforniaDavisSacramentoCaliforniaUSA
| | - Ana R. Quiñones
- Department of Family MedicineOregon Health & Science University (OHSU)PortlandOregonUSA
- OHSU‐PSU School of Public HealthOregon Health & Science UniversityPortlandOregonUSA
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14
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Park SY, Setiawan VW, Crimmins EM, White LR, Wu AH, Cheng I, Darst BF, Haiman CA, Wilkens LR, Le Marchand L, Lim U. Racial and Ethnic Differences in the Population-Attributable Fractions of Alzheimer Disease and Related Dementias. Neurology 2024; 102:e208116. [PMID: 38232335 PMCID: PMC11097758 DOI: 10.1212/wnl.0000000000208116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/22/2023] [Indexed: 01/19/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Previous studies estimated that modifiable risk factors explain up to 40% of the dementia cases in the United States and that this population-attributable fraction (PAF) differs by race and ethnicity-estimates of future impact based on the risk factor prevalence in contemporary surveys. The aim of this study was to determine the race-specific and ethnicity-specific PAF of late-onset Alzheimer disease and related dementias (ADRDs) based on the risk factor prevalence and associations observed on the same individuals within a prospective cohort. METHODS Data were from Multiethnic Cohort Study participants (African American, Japanese American, Latino, Native Hawaiian, and White) enrolled in Medicare Fee-for-Service. We estimated the PAF based on the prevalence of risk factors at cohort baseline and their mutually adjusted association with subsequent ADRD incidence. Risk factors included low educational attainment and midlife exposures to low neighborhood socioeconomic status, unmarried status, history of hypertension, stroke, diabetes or heart disease, smoking, physical inactivity, short or long sleep duration, obesity, and low-quality diet, as well as APOE ε4 for a subset. RESULTS Among 91,881 participants (mean age 59.3 at baseline, 55.0% female participants), 16,507 incident ADRD cases were identified from Medicare claims (1999-2016, mean follow-up 9.3 years). The PAF for nongenetic factors combined was similar in men (24.0% [95% CI 21.3-26.6]) and women (22.8% [20.3-25.2]) but varied across Japanese American (14.2% [11.1-17.2]), White (21.9% [19.0-24.7]), African American (27.8% [22.3-33.0]), Native Hawaiian (29.3% [21.0-36.7]), and Latino (33.3% [27.5-38.5]) groups. The combined PAF was attenuated when accounting for competing risk of death, in both men (10.4%) and women (13.9%) and across racial and ethnic groups (4.7%-25.5%). The combined PAF was also different by age at diagnosis and ADRD subtypes, higher for younger (65-74 years: 43.2%) than older (75-84 years: 32.4%; ≥85 years: 11.3%) diagnoses and higher for vascular or unspecified ADRD than for AD or Lewy body dementia. An additional PAF of 11.8% (9.9-13.6) was associated with APOE ε4, which together with nongenetic risk factors accounted for 30.6% (25.8-35.1) of ADRD. DISCUSSION Known risk factors explained about a third of the ADRD cases but with unequal distributions across racial and ethnic groups.
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Affiliation(s)
- Song-Yi Park
- From the Population Sciences in the Pacific Program (S.-Y.P., L.R. Wilkens, L.L.M., U.L.), University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu; Department of Population and Public Health Sciences (V.W.S., A.H.W., C.A.H.), Keck School of Medicine and Norris Comprehensive Cancer Center, and Leonard Davis School of Gerontology (E.M.C.), Andrus Gerontology Center, University of Southern California, Los Angeles; Pacific Health Research and Education Institute (L.R. White), Honolulu, HI; Department of Epidemiology and Biostatistics (I.C.), University of California, San Francisco; and Public Health Sciences Division (B.F.D.), Fred Hutchinson Cancer Center, Seattle, WA
| | - Veronica Wendy Setiawan
- From the Population Sciences in the Pacific Program (S.-Y.P., L.R. Wilkens, L.L.M., U.L.), University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu; Department of Population and Public Health Sciences (V.W.S., A.H.W., C.A.H.), Keck School of Medicine and Norris Comprehensive Cancer Center, and Leonard Davis School of Gerontology (E.M.C.), Andrus Gerontology Center, University of Southern California, Los Angeles; Pacific Health Research and Education Institute (L.R. White), Honolulu, HI; Department of Epidemiology and Biostatistics (I.C.), University of California, San Francisco; and Public Health Sciences Division (B.F.D.), Fred Hutchinson Cancer Center, Seattle, WA
| | - Eileen M Crimmins
- From the Population Sciences in the Pacific Program (S.-Y.P., L.R. Wilkens, L.L.M., U.L.), University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu; Department of Population and Public Health Sciences (V.W.S., A.H.W., C.A.H.), Keck School of Medicine and Norris Comprehensive Cancer Center, and Leonard Davis School of Gerontology (E.M.C.), Andrus Gerontology Center, University of Southern California, Los Angeles; Pacific Health Research and Education Institute (L.R. White), Honolulu, HI; Department of Epidemiology and Biostatistics (I.C.), University of California, San Francisco; and Public Health Sciences Division (B.F.D.), Fred Hutchinson Cancer Center, Seattle, WA
| | - Lon R White
- From the Population Sciences in the Pacific Program (S.-Y.P., L.R. Wilkens, L.L.M., U.L.), University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu; Department of Population and Public Health Sciences (V.W.S., A.H.W., C.A.H.), Keck School of Medicine and Norris Comprehensive Cancer Center, and Leonard Davis School of Gerontology (E.M.C.), Andrus Gerontology Center, University of Southern California, Los Angeles; Pacific Health Research and Education Institute (L.R. White), Honolulu, HI; Department of Epidemiology and Biostatistics (I.C.), University of California, San Francisco; and Public Health Sciences Division (B.F.D.), Fred Hutchinson Cancer Center, Seattle, WA
| | - Anna H Wu
- From the Population Sciences in the Pacific Program (S.-Y.P., L.R. Wilkens, L.L.M., U.L.), University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu; Department of Population and Public Health Sciences (V.W.S., A.H.W., C.A.H.), Keck School of Medicine and Norris Comprehensive Cancer Center, and Leonard Davis School of Gerontology (E.M.C.), Andrus Gerontology Center, University of Southern California, Los Angeles; Pacific Health Research and Education Institute (L.R. White), Honolulu, HI; Department of Epidemiology and Biostatistics (I.C.), University of California, San Francisco; and Public Health Sciences Division (B.F.D.), Fred Hutchinson Cancer Center, Seattle, WA
| | - Iona Cheng
- From the Population Sciences in the Pacific Program (S.-Y.P., L.R. Wilkens, L.L.M., U.L.), University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu; Department of Population and Public Health Sciences (V.W.S., A.H.W., C.A.H.), Keck School of Medicine and Norris Comprehensive Cancer Center, and Leonard Davis School of Gerontology (E.M.C.), Andrus Gerontology Center, University of Southern California, Los Angeles; Pacific Health Research and Education Institute (L.R. White), Honolulu, HI; Department of Epidemiology and Biostatistics (I.C.), University of California, San Francisco; and Public Health Sciences Division (B.F.D.), Fred Hutchinson Cancer Center, Seattle, WA
| | - Burcu F Darst
- From the Population Sciences in the Pacific Program (S.-Y.P., L.R. Wilkens, L.L.M., U.L.), University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu; Department of Population and Public Health Sciences (V.W.S., A.H.W., C.A.H.), Keck School of Medicine and Norris Comprehensive Cancer Center, and Leonard Davis School of Gerontology (E.M.C.), Andrus Gerontology Center, University of Southern California, Los Angeles; Pacific Health Research and Education Institute (L.R. White), Honolulu, HI; Department of Epidemiology and Biostatistics (I.C.), University of California, San Francisco; and Public Health Sciences Division (B.F.D.), Fred Hutchinson Cancer Center, Seattle, WA
| | - Christopher A Haiman
- From the Population Sciences in the Pacific Program (S.-Y.P., L.R. Wilkens, L.L.M., U.L.), University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu; Department of Population and Public Health Sciences (V.W.S., A.H.W., C.A.H.), Keck School of Medicine and Norris Comprehensive Cancer Center, and Leonard Davis School of Gerontology (E.M.C.), Andrus Gerontology Center, University of Southern California, Los Angeles; Pacific Health Research and Education Institute (L.R. White), Honolulu, HI; Department of Epidemiology and Biostatistics (I.C.), University of California, San Francisco; and Public Health Sciences Division (B.F.D.), Fred Hutchinson Cancer Center, Seattle, WA
| | - Lynne R Wilkens
- From the Population Sciences in the Pacific Program (S.-Y.P., L.R. Wilkens, L.L.M., U.L.), University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu; Department of Population and Public Health Sciences (V.W.S., A.H.W., C.A.H.), Keck School of Medicine and Norris Comprehensive Cancer Center, and Leonard Davis School of Gerontology (E.M.C.), Andrus Gerontology Center, University of Southern California, Los Angeles; Pacific Health Research and Education Institute (L.R. White), Honolulu, HI; Department of Epidemiology and Biostatistics (I.C.), University of California, San Francisco; and Public Health Sciences Division (B.F.D.), Fred Hutchinson Cancer Center, Seattle, WA
| | - Loїc Le Marchand
- From the Population Sciences in the Pacific Program (S.-Y.P., L.R. Wilkens, L.L.M., U.L.), University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu; Department of Population and Public Health Sciences (V.W.S., A.H.W., C.A.H.), Keck School of Medicine and Norris Comprehensive Cancer Center, and Leonard Davis School of Gerontology (E.M.C.), Andrus Gerontology Center, University of Southern California, Los Angeles; Pacific Health Research and Education Institute (L.R. White), Honolulu, HI; Department of Epidemiology and Biostatistics (I.C.), University of California, San Francisco; and Public Health Sciences Division (B.F.D.), Fred Hutchinson Cancer Center, Seattle, WA
| | - Unhee Lim
- From the Population Sciences in the Pacific Program (S.-Y.P., L.R. Wilkens, L.L.M., U.L.), University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu; Department of Population and Public Health Sciences (V.W.S., A.H.W., C.A.H.), Keck School of Medicine and Norris Comprehensive Cancer Center, and Leonard Davis School of Gerontology (E.M.C.), Andrus Gerontology Center, University of Southern California, Los Angeles; Pacific Health Research and Education Institute (L.R. White), Honolulu, HI; Department of Epidemiology and Biostatistics (I.C.), University of California, San Francisco; and Public Health Sciences Division (B.F.D.), Fred Hutchinson Cancer Center, Seattle, WA
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15
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Cha H, Farina MP, Chiu CT, Hayward MD. The importance of education for understanding variability of dementia onset in the United States. DEMOGRAPHIC RESEARCH 2024; 50:733-762. [PMID: 38872908 PMCID: PMC11171414 DOI: 10.4054/demres.2024.50.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024] Open
Abstract
BACKGROUND Greater levels of education are associated with lower risk of dementia, but less is known about how education is also associated with the compression of dementia incidence. OBJECTIVE We extend the literature on morbidity compression by evaluating whether increased levels of education are associated with greater dementia compression. We evaluate these patterns across race and gender groups. METHODS We use the Health and Retirement Study (2000-2016), a nationally representative longitudinal study of older adults in the United States. To evaluate the onset and compression of dementia across education groups, we examine the age-specific distribution of dementia events, identifying the modal age of onset and the standard deviation above the mode (a measure of compression). RESULTS While the modal age of onset is around 85 years among adults with a college degree, the modal age for adults with less than a high school education occurs before age 65 - at least a 20-year difference. The standard deviation of dementia onset is about three times greater for adults with less than a high school education compared to adults with a college degree. Patterns were consistent across race and gender groups. CONCLUSION This research highlights the variability of dementia experiences in the older population by documenting differences in longevity without dementia and compression of dementia onset among more educated adults and less educated adults. CONTRIBUTION We incorporate conceptual insights from the life span variability and compression literature to better understand education-dementia disparities in both the postponement and uncertainty of dementia onset in the US population.
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Affiliation(s)
- Hyungmin Cha
- Shared authorship. Leonard Davis School of Gerontology, University of Southern California, Los Angeles, USA
| | - Mateo P Farina
- Shared authorship. Department of Human Development and Family Sciences, Center on Aging and Population Sciences and Population Research Center, University of Texas at Austin, Austin, USA
| | - Chi-Tsun Chiu
- Institute of European and American Studies, Academia Sinica, Taipei, Taiwan
| | - Mark D Hayward
- Department of Sociology, Center on Aging and Population Sciences and Population Research Center, University of Texas at Austin, Austin, USA
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Rawat P, Sehar U, Bisht J, Reddy AP, Reddy PH. Alzheimer's disease and Alzheimer's disease-related dementias in Hispanics: Identifying influential factors and supporting caregivers. Ageing Res Rev 2024; 93:102178. [PMID: 38154509 PMCID: PMC10807242 DOI: 10.1016/j.arr.2023.102178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/04/2023] [Accepted: 12/23/2023] [Indexed: 12/30/2023]
Abstract
Alzheimer's disease (AD) and Alzheimer's disease-related dementias (ADRD) are the primary public health concerns in the United States and around the globe. AD/ADRD are irreversible mental illnesses that primarily impair memory and thought processes and may lead to cognitive decline among older individuals. The prevalence of AD/ADRD is higher in Native Americans, followed by African Americans and Hispanics. Increasing evidence suggests that Hispanics are the fastest-growing ethnic population in the USA and worldwide. Hispanics develop clinical symptoms of AD/ADRD and other comorbidities nearly seven years earlier than non-Hispanic whites. The consequences of AD/ADRD can be challenging for patients, their families, and caregivers. There is a significant increase in the burden of illness, primarily affecting Hispanic/Latino families. This is partly due to their strong sense of duty towards family, and it is exacerbated by the inadequacy of healthcare and community services that are culturally and linguistically suitable and responsive to their needs. With an increasing age population, low socioeconomic status, low education, high genetic predisposition to age-related conditions, unique cultural habits, and social behaviors, Hispanic Americans face a higher risk of AD/ADRD than other racial/ethnic groups. Our article highlights the status of Hispanic older adults with AD/ADRD. We also discussed the intervention to improve the quality of life in Hispanic caregivers.
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Affiliation(s)
- Priyanka Rawat
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock 79430, TX, USA; Nutritional Sciences Department, College of Human Sciences, Texas Tech University, Lubbock 79409, TX, USA
| | - Ujala Sehar
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock 79430, TX, USA
| | - Jasbir Bisht
- Nutritional Sciences Department, College of Human Sciences, Texas Tech University, Lubbock 79409, TX, USA
| | - Arubala P Reddy
- Nutritional Sciences Department, College of Human Sciences, Texas Tech University, Lubbock 79409, TX, USA
| | - P Hemachandra Reddy
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock 79430, TX, USA; Nutritional Sciences Department, College of Human Sciences, Texas Tech University, Lubbock 79409, TX, USA; Department of Speech, Language and Hearing Sciences, School Health Professions, Texas Tech University Health Sciences Center, Lubbock 79430, TX, USA; Department of Public Health, School of Population and Public Health, Texas Tech University Health Sciences Center, Lubbock 79430, TX, USA; Neurology, Departments of School of Medicine, Texas Tech University Health Sciences Center, Lubbock 79430, TX, USA; Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, Lubbock, TX, USA.
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17
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Gotanda H, Zhang JJ, Reuben DB, Walling AM, Xu H, Jena AB, Gross N, Tsugawa Y. Association between physicians' geriatric training and patterns of end-of-life care delivered to persons with dementia. J Am Geriatr Soc 2023; 71:3457-3466. [PMID: 37470082 PMCID: PMC10799178 DOI: 10.1111/jgs.18510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 04/24/2023] [Accepted: 06/25/2023] [Indexed: 07/21/2023]
Abstract
BACKGROUND Geriatric training is designed to prepare physicians to meet the complex needs of older adults, including persons with dementia at the end-of-life (EOL) stage. We sought to compare patterns of EOL care delivered to persons with dementia between physicians with versus without geriatric training. METHODS We conducted a cross-sectional study of a 20% random sample of fee-for-service Medicare beneficiaries with dementia who died in 2016-2018 (n = 99,631). We attributed beneficiaries to a physician who had the largest number of primary care visits during the last 6 months of life and determined whether the physician was trained in geriatrics. Our outcome measures included: (i) advance care planning (ACP) and palliative care (e.g., ACP, hospice enrollment in the last 90 days of life), and (ii) high-intensity EOL care (e.g., emergency department visits or hospital admissions in the last 30 days of life). RESULTS Beneficiaries with dementia under the care of physicians with geriatric training had a higher proportion of ACP (adjusted proportion, 15.8% vs. 13.0%; p < 0.001 after accounting for multiple comparisons), palliative care counseling (22.4% vs. 20.9%; p = 0.01), and hospice enrollment (63.7% vs. 60.6%; p < 0.001). Geriatric training was also associated with a lower proportion of emergency department visits (55.1% vs. 59.1%; p < 0.001), hospital admissions (48.8% vs. 52.3%; p < 0.001), ICU admissions (24.9% vs. 27.4%; p < 0.001), use of mechanical ventilation (11.2% vs. 13.0%; p < 0.001), and use of cardiopulmonary resuscitation (2.1% vs. 2.4%; p = 0.03) in the last 30 days of life. There was no evidence that the placement of feeding tubes differed between the two groups. CONCLUSIONS Physicians' geriatric training was associated with the receipt of more ACP and palliative care and less intensive EOL care among persons with dementia. Provision of geriatric training for physicians may have the potential to improve the quality of EOL care delivered to persons with dementia.
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Affiliation(s)
- Hiroshi Gotanda
- Division of General Internal Medicine, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Jessica J. Zhang
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - David B Reuben
- Multicampus Program in Geriatric Medicine and Gerontology, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Anne M Walling
- Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine at UCLA, Los Angeles, CA
- Greater Los Angeles Veterans Affairs Healthcare System, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Haiyong Xu
- Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Anupam B. Jena
- Department of Health Care Policy, Harvard Medical School, Boston, MA
- Department of Medicine, Massachusetts General Hospital, Boston, MA
| | | | - Yusuke Tsugawa
- Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine at UCLA, Los Angeles, CA
- Department of Health Policy and Management, UCLA Fielding School of Public Health, Los Angeles, CA
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18
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Schiaffino MK, Schumacher JR, Nalawade V, Nguyen PTN, Yakuta M, Gilbert PE, Dale W, Murphy JD, Moore AA. The disproportionate burden of Alzheimer's disease and related dementias (ADRD) in diverse older adults diagnosed with cancer. J Geriatr Oncol 2023; 14:101610. [PMID: 37666209 PMCID: PMC11086668 DOI: 10.1016/j.jgo.2023.101610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/26/2023] [Accepted: 08/23/2023] [Indexed: 09/06/2023]
Abstract
INTRODUCTION Older adults living with Alzheimer's disease and related dementias (ADRD) who are then diagnosed with cancer are an understudied population. While the role of cognitive impairment during and after cancer treatment have been well-studied, less is understood about patients who are living with ADRD and then develop cancer. The purpose of this study is to contribute evidence about our understanding of this vulnerable population. MATERIALS AND METHODS This was a retrospective cohort study of a linked, representative family of databases of cancer registries and Medicare administrative claims that make up the SEER-Medicare database. Older adults ages 68 and older with a first primary cancer type: breast, cervical, colorectal, lung, oral, or prostate were eligible for inclusion (N = 337,932). Prevalence estimates of ADRD across cancer types and a 5% non-cancer comparison sample were compared by patient factors. RESULTS The overall prevalence of patients who had an ADRD diagnosis anytime in the three years prior to their cancer diagnosis was 5.6%. Patients with ADRD were more likely to be female, older (over age 75), a racial/ethnic minority, single, with multiple chronic conditions, and a tumor diagnosed early (stage I) or were unstaged. Black patients with colorectal and oral cancer had the highest and second highest prevalence of ADRD compared to White patients (13.46% vs 7.95% and 12.64% vs 7.82% respectively, p < .0001). We observed the highest prevalence of ADRD among Black patients for breast (11.85%), cervical (11.98%), lung (8.41%), prostate (4.83), and the 5% sample (9.50%, p > .0001). DISCUSSION The higher prevalence of ADRD among Black and Latine older adults with cancer not only aligns with the trend observed in our non-cancer comparison sample, but also, these findings demonstrate the compounded risk experienced by minoritized older adults over the life course. The greater than expected prevalence of patients with ADRD who go on to develop cancer demonstrates better assessment of cognition is urgently needed. Accurate identification of these vulnerable populations is critical to improve assessment, care coordination, and address inequities in screening and treatment planning.
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Affiliation(s)
- Melody K Schiaffino
- School of Public Health, San Diego State University, San Diego, CA, USA; Center for Health Equity, Education, and Research, School of Medicine, UC San Diego, La Jolla, CA, USA; Division of Radiation Medicine and Applied Sciences, School of Medicine, UC San Diego, La Jolla, CA, USA; Division of Geriatrics, Gerontology, and Palliative Medicine, UC San Diego, CA, USA.
| | - Jessica R Schumacher
- Department of Surgery, School of Medicine, UNC Chapel Hill, Chapel Hill, NC, USA.
| | - Vinit Nalawade
- Division of Radiation Medicine and Applied Sciences, School of Medicine, UC San Diego, La Jolla, CA, USA.
| | - Phuong Thi Ngoc Nguyen
- Interdisciplinary Graduate Program in Informatics, University of Iowa, Iowa City, IA, USA.
| | - Melissa Yakuta
- San Diego Health and Human Services Agency, San Diego, CA, USA.
| | - Paul E Gilbert
- Department of Psychology, San Diego State University, San Diego, CA, USA.
| | - William Dale
- Department of Supportive Care Medicine, City of Hope, Duarte, CA, USA.
| | - James D Murphy
- Center for Health Equity, Education, and Research, School of Medicine, UC San Diego, La Jolla, CA, USA; Division of Radiation Medicine and Applied Sciences, School of Medicine, UC San Diego, La Jolla, CA, USA.
| | - Alison A Moore
- Division of Geriatrics, Gerontology, and Palliative Medicine, UC San Diego, CA, USA.
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Rebok GW, Gellert A, Coe NB, Clay OJ, Wallace G, Parisi JM, Aiken-Morgan AT, Crowe M, Ball K, Thorpe RJ, Marsiske M, Zahodne LB, Felix C, Willis SL. Effects of Cognitive Training on Alzheimer's Disease and Related Dementias: The Moderating Role of Social Determinants of Health. J Aging Health 2023; 35:40S-50S. [PMID: 37994850 DOI: 10.1177/08982643231203755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Objective: We examined whether social determinants of health (SDoH) are associated with Alzheimer's disease and related dementias (ADRD) risk and the effects of cognitive training over a 20-year follow-up period. Methods: Data were obtained from 1605 participants in ACTIVE. SDoH measures were created using baseline data at the individual and neighborhood level. Incident ADRD was defined using administrative claims data (1999-2019). Cause-specific hazard models estimated associations between SDoH and claims-based diagnosed ADRD. Results: Higher scores on neighborhood and built environment were associated with lower ADRD risk. Trained participants obtained a greater degree of protection from ADRD when they had higher scores for SDoH domains associated with health care and education access. However, there were fewer significant SDoH moderation effects on cognitive training than expected. Discussion: Future work should continue to explore culturally tailored cognitive training interventions to reduce ADRD risk associated with SDoH that disproportionately affects racially diverse aging populations.
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Affiliation(s)
- George W Rebok
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Johns Hopkins Alzheimer's Disease Resource Center for Minority Aging Research, Johns Hopkins University, Baltimore, MD, USA
- Johns Hopkins Center on Aging and Health, Johns Hopkins University, Baltimore, MD, USA
| | | | - Norma B Coe
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Olivio J Clay
- Department of Psychology, University of Alabama at Birmingham, Birmingham, AL, USA
- Deep South Resource Center for Minority Aging Research, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Gail Wallace
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Johns Hopkins Alzheimer's Disease Resource Center for Minority Aging Research, Johns Hopkins University, Baltimore, MD, USA
| | - Jeanine M Parisi
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Johns Hopkins Alzheimer's Disease Resource Center for Minority Aging Research, Johns Hopkins University, Baltimore, MD, USA
| | | | - Michael Crowe
- Department of Psychology, University of Alabama at Birmingham, Birmingham, AL, USA
- Deep South Resource Center for Minority Aging Research, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Karlene Ball
- Department of Psychology, University of Alabama at Birmingham, Birmingham, AL, USA
- Deep South Resource Center for Minority Aging Research, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Roland J Thorpe
- Johns Hopkins Alzheimer's Disease Resource Center for Minority Aging Research, Johns Hopkins University, Baltimore, MD, USA
- Johns Hopkins Center on Aging and Health, Johns Hopkins University, Baltimore, MD, USA
- Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Michael Marsiske
- Department of Clinical and Health Psychology, University of Florida, Gainesville, FL, USA
| | - Laura B Zahodne
- Department of Psychology, University of Michigan, Ann Arbor, MI, USA
| | - Cynthia Felix
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sherry L Willis
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
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Spargo D, Zur R, Lin P, Synnott P, Klein E, Hartry A. Estimating prevalence of early symptomatic Alzheimer's disease in the United States. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2023; 15:e12497. [PMID: 38034853 PMCID: PMC10682565 DOI: 10.1002/dad2.12497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/12/2023] [Accepted: 10/19/2023] [Indexed: 12/02/2023]
Abstract
INTRODUCTION Understanding the prevalence of treatment-eligible Alzheimer's disease (AD) is crucial for policy planning. METHODS We used a comprehensive literature review and population cascade approach to estimate the number of amyloid-positive, clinically diagnosed patients with mild cognitive impairment (MCI) or mild dementia due to AD in the United States. RESULTS An estimated 666,646 individuals were identified as having MCI due to AD (range: 351,926-1,227,776) and 620,850 individuals as having mild dementia due to AD (range: 445,082-820,339). In a US population of 76 million individuals aged 60 or older in 2021, the estimates of MCI and mild dementia due to AD increased with age. CONCLUSIONS As earlier diagnosis of AD and new disease-modifying treatments become available, accurate population estimates are required to reduce uncertainty in the number of clinically diagnosed patients eligible for amyloid-targeting therapies.
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Affiliation(s)
| | | | - Pei‐Jung Lin
- Center for the Evaluation of Value and Risk in HealthInstitute for Clinical Research and Health Policy StudiesTufts Medical CenterBostonMassachusettsUSA
| | - Patricia Synnott
- Center for the Evaluation of Value and Risk in HealthInstitute for Clinical Research and Health Policy StudiesTufts Medical CenterBostonMassachusettsUSA
| | - Eric Klein
- Eli Lilly and CompanyIndianapolisIndianaUSA
| | - Ann Hartry
- Eli Lilly and CompanyIndianapolisIndianaUSA
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21
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Bélanger E, Rosendaal N, Gutman R, Lake D, Santostefano CM, Meyers DJ, Gozalo PL. Identifying Medicare beneficiaries with Alzheimer's disease and related dementia using home health OASIS assessments. J Am Geriatr Soc 2023; 71:3229-3236. [PMID: 37358283 PMCID: PMC10592468 DOI: 10.1111/jgs.18487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 04/24/2023] [Accepted: 05/21/2023] [Indexed: 06/27/2023]
Abstract
BACKGROUND Home health services are an important site of care following hospitalization among Medicare beneficiaries, providing health assessments that can be leveraged to detect diagnoses that are not available in other data sources. In this work, we aimed to develop a parsimonious and accurate algorithm using home health outcome and assessment information set (OASIS) measures to identify Medicare beneficiaries with a diagnosis of Alzheimer's disease and related dementia (ADRD). METHODS We conducted a retrospective cohort study of Medicare beneficiaries with a complete OASIS start of care assessment in 2014, 2016, 2018, or 2019 to determine how well the items from various versions could identify those with an ADRD diagnosis by the assessment date. The prediction model was developed iteratively, comparing the performance of different models in terms of sensitivity, specificity, and accuracy of prediction, from a multivariable logistic regression model using clinically relevant variables, to regression models with all available variables and predictive modeling techniques, to estimate the best performing parsimonious model. RESULTS The most important predictors of having a diagnosis of ADRD by the start of care OASIS assessment were a prior discharge diagnosis of ADRD among those admitted from an inpatient setting, and frequently exhibiting symptoms of confusion. Results from the parsimonious model were consistent across the four annual cohorts and OASIS versions with high specificity (above 96%), but poor sensitivity (below 58%). The positive predictive value was high, over 87% across study years. CONCLUSIONS The proposed algorithm has high accuracy, requires a single OASIS assessment, is easy to implement without sophisticated statistical models, and can be used across four OASIS versions and in situations where claims are not available to identify individuals with a diagnosis of ADRD, including the growing population of Medicare Advantage beneficiaries.
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Affiliation(s)
- Emmanuelle Bélanger
- Center for Gerontology and Healthcare Research, Brown University School of Public Health, Providence, Rhode Island, USA
- Department of Health Services, Policy & Practice, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Nicole Rosendaal
- Center for Gerontology and Healthcare Research, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Roee Gutman
- Department of Biostatistics, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Derek Lake
- Center for Gerontology and Healthcare Research, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Christopher M Santostefano
- Center for Gerontology and Healthcare Research, Brown University School of Public Health, Providence, Rhode Island, USA
| | - David J Meyers
- Center for Gerontology and Healthcare Research, Brown University School of Public Health, Providence, Rhode Island, USA
- Department of Health Services, Policy & Practice, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Pedro L Gozalo
- Center for Gerontology and Healthcare Research, Brown University School of Public Health, Providence, Rhode Island, USA
- Department of Health Services, Policy & Practice, Brown University School of Public Health, Providence, Rhode Island, USA
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22
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Dhana K, Beck T, Desai P, Wilson RS, Evans DA, Rajan KB. Prevalence of Alzheimer's disease dementia in the 50 US states and 3142 counties: A population estimate using the 2020 bridged-race postcensal from the National Center for Health Statistics. Alzheimers Dement 2023; 19:4388-4395. [PMID: 37458371 PMCID: PMC10593099 DOI: 10.1002/alz.13081] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 07/28/2023]
Abstract
INTRODUCTION This study estimates the prevalence and number of people living with Alzheimer's disease (AD) dementia in 50 US states and 3142 counties. METHODS We used cognitive data from the Chicago Health and Aging Project, a population-based study, and combined it with the National Center for Health Statistics 2020 bridged-race population estimates to determine the prevalence of AD in adults ≥65 years. RESULTS A higher prevalence of AD was estimated in the east and southeastern regions of the United States, with the highest in Maryland (12.9%), New York (12.7%), and Mississippi (12.5%). US states with the highest number of people with AD were California, Florida, and Texas. Among larger counties, those with the highest prevalence of AD were Miami-Dade County in Florida, Baltimore city in Maryland, and Bronx County in New York. DISCUSSION The state- and county-specific estimates could help public health officials develop region-specific strategies for caring for people with AD.
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Affiliation(s)
- Klodian Dhana
- Rush Institute for Healthy Aging, Rush University Medical Center, Chicago, IL 60612
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612
| | - Todd Beck
- Rush Institute for Healthy Aging, Rush University Medical Center, Chicago, IL 60612
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612
| | - Pankaja Desai
- Rush Institute for Healthy Aging, Rush University Medical Center, Chicago, IL 60612
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612
| | - Robert S. Wilson
- Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, IL 60612
| | - Denis A. Evans
- Rush Institute for Healthy Aging, Rush University Medical Center, Chicago, IL 60612
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612
| | - Kumar B. Rajan
- Rush Institute for Healthy Aging, Rush University Medical Center, Chicago, IL 60612
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612
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Dinesh D, Shao Q, Palnati M, McDannold S, Zhang Q, Monfared AAT, Jasuja GK, Davila H, Xia W, Moo LR, Miller DR, Palacios N. The epidemiology of mild cognitive impairment, Alzheimer's disease and related dementia in U.S. veterans. Alzheimers Dement 2023; 19:3977-3984. [PMID: 37114952 DOI: 10.1002/alz.13071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 10/25/2022] [Accepted: 11/10/2022] [Indexed: 04/29/2023]
Abstract
INTRODUCTION US veterans have a unique dementia risk profile that may be evolving over time. METHODS Age-standardized incidence and prevalence of Alzheimer's disease (AD), AD and related dementias (ADRD), and mild cognitive impairment (MCI) was estimated from electronic health records (EHR) data for all veterans aged 50 years and older receiving Veterans Health Administration (VHA) care from 2000 to 2019. RESULTS The annual prevalence and incidence of AD declined, as did ADRD incidence. ADRD prevalence increased from 1.07% in 2000 to 1.50% in 2019, primarily due to an increase in the prevalence of dementia not otherwise specified. The prevalence and incidence of MCI increased sharply, especially after 2010. The prevalence and incidence of AD, ADRD, and MCI were highest in the oldest veterans, in female veterans, and in African American and Hispanic veterans. DISCUSSION We observed 20-year trends of declining prevalence and incidence of AD, increasing prevalence of ADRD, and sharply increasing prevalence and incidence of MCI.
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Affiliation(s)
- Deepika Dinesh
- Department of Public Health, University of Massachusetts at Lowell, Zuckerberg College of Health Sciences, Lowell, Massachusetts, USA
- Center for Population Health, Department of Biomedical and Nutritional Sciences, University of Massachusetts, Lowell, Massachusetts, USA
| | - Qing Shao
- Bedford VA Healthcare System, Center for Healthcare Organization and Implementation Research, Bedford, Massachusetts, USA
| | - Madhuri Palnati
- Bedford VA Healthcare System, Center for Healthcare Organization and Implementation Research, Bedford, Massachusetts, USA
| | - Sarah McDannold
- Bedford VA Healthcare System, Center for Healthcare Organization and Implementation Research, Bedford, Massachusetts, USA
| | - Quanwu Zhang
- Easai Inc., Neurology Business Group, Woodcliff Lake, New Jersey, USA
| | - Amir Abbas Tahami Monfared
- Easai Inc., Neurology Business Group, Woodcliff Lake, New Jersey, USA
- McGill University, Epidemiology, Biostatistics, and Occupational Health, Montreal, Quebec, Canada
| | - Guneet K Jasuja
- Bedford VA Healthcare System, Center for Healthcare Organization and Implementation Research, Bedford, Massachusetts, USA
- Section of General Internal Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Heather Davila
- Center for Access & Delivery Research and Evaluation, Iowa City VA Healthcare System, Iowa, USA
- General Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Weiming Xia
- Bedford VA Healthcare System, Geriatric Research and Education Clinical Center, Bedford, Massachusetts, USA
- Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Lauren R Moo
- Bedford VA Healthcare System, Center for Healthcare Organization and Implementation Research, Bedford, Massachusetts, USA
- Bedford VA Healthcare System, Geriatric Research and Education Clinical Center, Bedford, Massachusetts, USA
- Department of Neurology, Harvard Medical School, Boston, Massachusetts, USA
| | - Donald R Miller
- Center for Population Health, Department of Biomedical and Nutritional Sciences, University of Massachusetts, Lowell, Massachusetts, USA
- Bedford VA Healthcare System, Center for Healthcare Organization and Implementation Research, Bedford, Massachusetts, USA
| | - Natalia Palacios
- Department of Public Health, University of Massachusetts at Lowell, Zuckerberg College of Health Sciences, Lowell, Massachusetts, USA
- Center for Population Health, Department of Biomedical and Nutritional Sciences, University of Massachusetts, Lowell, Massachusetts, USA
- Bedford VA Healthcare System, Geriatric Research and Education Clinical Center, Bedford, Massachusetts, USA
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Martin-Bassols N, de New SC, Johnston DW, Shields MA. Cognitive activity at work and the risk of dementia. HEALTH ECONOMICS 2023; 32:1561-1580. [PMID: 36967557 DOI: 10.1002/hec.4679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 02/27/2023] [Accepted: 03/03/2023] [Indexed: 06/04/2023]
Abstract
Dementia prevalence is projected to rise steeply in coming decades, producing tremendous burdens on families, and health and social services. Motivated by the need for further robust evidence on modifiable risk factors, we investigate the relationship between cognitive activity at work and later-life dementia. Using data from the US Health and Retirement Study matched to the O*NET occupational database, we find that a one standard deviation increase in the cognitive activity associated with one's longest held occupation is associated with a 0.9 percentage point reduction in (predicted) dementia, or a 24% reduction relative to the mean. This relationship is consistently found across model specifications and robustness tests. When controlling for individual fixed-effects we find that the association between dementia and work cognitive activity increases with age. Overall, our results provide some evidence in support of the inclusion of cognitive activity at work as a recognized modifiable risk factor for dementia.
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Affiliation(s)
| | - Sonja C de New
- Centre for Health Economics, Monash University, Clayton, Victoria, Australia
| | - David W Johnston
- Centre for Health Economics, Monash University, Clayton, Victoria, Australia
| | - Michael A Shields
- Centre for Health Economics, Monash University, Clayton, Victoria, Australia
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25
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Zacher M, Brady S, Short S. Geographic Patterns of Dementia in the United States: Variation by Place of Residence, Place of Birth, and Subpopulation. J Gerontol B Psychol Sci Soc Sci 2023; 78:1192-1203. [PMID: 36891976 PMCID: PMC10292838 DOI: 10.1093/geronb/gbad045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Indexed: 03/10/2023] Open
Abstract
OBJECTIVES The prevalence of dementia varies geographically in the United States. However, the extent to which this variation reflects contemporary place-based experiences versus embodied exposures from earlier in the life course remains unclear, and little is known regarding the intersection of place and subpopulation. This study, therefore, evaluates whether and how risk for assessed dementia varies by place of residence and birth, overall and by race/ethnicity and education. METHODS We pool data from the 2000 to 2016 waves of the Health and Retirement Study, a nationally representative panel survey of older U.S. adults (n = 96,848 observations). We estimate the standardized prevalence of dementia by Census division of residence and birth. We then fit logistic regression models of dementia on region of residence and birth, adjusting for sociodemographic characteristics, and examine interactions between region and subpopulation. RESULTS The standardized prevalence of dementia ranges from 7.1% to 13.6% by division of residence and from 6.6% to 14.7% by division of birth, with rates highest throughout the South and lowest in the Northeast and Midwest. In models accounting for region of residence, region of birth, and sociodemographic covariates, Southern birth remains significantly associated with dementia. Adverse relationships between Southern residence or birth and dementia are generally largest for Black and less-educated older adults. As a result, sociodemographic disparities in predicted probabilities of dementia are largest for those residing or born in the South. DISCUSSION The sociospatial patterning of dementia suggests its development is a lifelong process involving cumulated and heterogeneous lived experiences embedded in place.
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Affiliation(s)
- Meghan Zacher
- Population Studies and Training Center, Brown University, Providence, Rhode Island, USA
| | - Samantha Brady
- Population Studies and Training Center, Brown University, Providence, Rhode Island, USA
- Department of Sociology, Brown University, Providence, Rhode Island, USA
| | - Susan E Short
- Population Studies and Training Center, Brown University, Providence, Rhode Island, USA
- Department of Sociology, Brown University, Providence, Rhode Island, USA
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Rakuša E, Fink A, Tamgüney G, Heneka MT, Doblhammer G. Sporadic Use of Antibiotics in Older Adults and the Risk of Dementia: A Nested Case-Control Study Based on German Health Claims Data. J Alzheimers Dis 2023:JAD221153. [PMID: 37182873 DOI: 10.3233/jad-221153] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
BACKGROUND Antibiotics for systemic use may increase the risk of neurodegeneration, yet antibiotic therapy may be able to halt or mitigate an episode of neurodegenerative decline. OBJECTIVE To investigate the association of sporadic use of antibiotics and subsequent dementia risk (including Alzheimer's disease). METHODS We used data from the largest public health insurance fund in Germany, the Allgemeine Ortskrankenkasse (AOK). Each of the 35,072 dementia cases aged 60 years and older with a new dementia diagnosis during the observation period from 2006 to 2018 was matched with two control-patients by age, sex, and time since 2006. We ran conditional logistic regression models for dementia risk in terms of odds ratios (OR) as a function of antibiotic use for the entire antibiotic group and for each antibiotic subgroup. We controlled for comorbidities, need for long-term care, hospitalizations, and nursing home placement. RESULTS Antibiotic use was positively associated with dementia (OR = 1.18, 95% confidence interval (95% CI):1.14-1.22), which became negative after adjustment for comorbidities, at least one diagnosis of bacterial infection or disease, and covariates (OR = 0.93, 95% CI:0.90-0.96). Subgroups of antibiotics were also negatively associated with dementia after controlling for covariates: tetracyclines (OR = 0.94, 95% CI:0.90-0.98), beta-lactam antibacterials, penicillins (OR = 0.93, 95% CI:0.90-0.97), other beta-lactam antibacterials (OR = 0.92, 95% CI:0.88-0.95), macrolides, lincosamides, and streptogramins (OR = 0.88, 95% CI:0.85-0.92), and quinolone antibacterials (OR = 0.96, 95% CI:0.92-0.99). CONCLUSION Our results suggest that there was a decreased likelihood of dementia for preceding antibiotic use. The benefits of antibiotics in reducing inflammation and thus the risk of dementia need to be carefully weighed against the increase in antibiotic resistance.
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Affiliation(s)
- Elena Rakuša
- German Center for Neurodegenerative Diseases, Demographic Studies, Bonn, Germany
| | - Anne Fink
- German Center for Neurodegenerative Diseases, Demographic Studies, Bonn, Germany
| | - Gültekin Tamgüney
- Institut für Biologische Informationsprozesse, Strukturbiochemie (IBI-7), Forschungszentrum Jülich GmbH, Jülich, Germany
- Institut für Physikalische Biologie, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Michael T Heneka
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Belvaux, Luxembourg
| | - Gabriele Doblhammer
- German Center for Neurodegenerative Diseases, Demographic Studies, Bonn, Germany
- University Rostock, Institute for Sociology and Demography, Rostock, Germany
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Thunell JA, Ferido P, Zissimopoulos JM. COVID-19 hospitalization and mortality in community-dwelling racially and ethnically diverse persons living with dementia. J Am Geriatr Soc 2023; 71:1429-1439. [PMID: 36637869 PMCID: PMC10175159 DOI: 10.1111/jgs.18230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 12/08/2022] [Accepted: 12/23/2022] [Indexed: 01/14/2023]
Abstract
BACKGROUND Community-dwelling persons living with dementia (PLWD) are vulnerable to COVID-19 infection, severity, and mortality due to the high prevalence of comorbidities, reliance on caregivers, and potential inability to employ risk reduction measures, among other factors. METHODS We used a retrospective cohort of Medicare Fee-For-Service beneficiaries enrolled from January 2018 to September 2020 (n = 13,068,583), a comparison cohort from January 2019 to April 2021 (n = 13,250,297), and logistic regression to estimate the effect of dementia on COVID-19 hospitalization and mortality in community-dwelling older persons. RESULTS COVID-19 diagnoses were higher among persons living with dementia (PLWD) than those without dementia. Conditional on COVID-19 in the 2020 cohort, White PLWD were at higher risk of hospitalization compared to White persons without dementia (aOR 1.31, 95% CI: 1.26-1.36) and marginal for Black PLWD (aOR 1.10, 95% CI: 1.01-1.20), no significant differences were found within other racial/ethnic groups. PLWD were 1.8 times (aOR 1.78, 95% CI: 1.72-1.84) more likely to die within 30 days of COVID-19 on average. Within racial/ethnic groups, the estimate for White PLWD, compared with White persons without dementia, was highest (aOR 2.01, 95% CI: 1.92-2.10), followed by Black PLWD (aOR 1.55, 95% CI: 1.41-1.70), and smallest among Hispanic PLWD (aOR 1.37, 95% CI: 1.24-1.50). PLWD hospitalized with COVID-19 were 1.6 times (aOR 1.59, 95% CI: 1.52-1.67) more likely to die within 30 days than similar persons without dementia. Estimates from the 2021 cohort, when vaccines were available to older persons, were similar to those in 2020. CONCLUSIONS Community-dwelling PLWD experienced worse outcomes after a COVID-19 diagnosis than their counterparts without dementia. Results demonstrating higher mortality, but not hospitalization rates, for all races/ethnicities except White PLWD suggest there may have been differential care/treatment that point to potential health care system inequities that persisted into 2021. Understanding the mechanisms underlying these differences may improve ongoing care for community-dwelling PLWD.
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Affiliation(s)
- Johanna A Thunell
- Price School of Public Policy, University of Southern California, Los Angeles, California, USA
- Schaeffer Center for Health Policy and Economics, University of Southern California, Los Angeles, California, USA
| | - Patricia Ferido
- Schaeffer Center for Health Policy and Economics, University of Southern California, Los Angeles, California, USA
| | - Julie M Zissimopoulos
- Price School of Public Policy, University of Southern California, Los Angeles, California, USA
- Schaeffer Center for Health Policy and Economics, University of Southern California, Los Angeles, California, USA
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Bae-Shaaw YH, Shier V, Sood N, Seabury SA, Joyce G. Potentially Inappropriate Medication Use in Community-Dwelling Older Adults Living with Dementia. J Alzheimers Dis 2023; 93:471-481. [PMID: 37038818 DOI: 10.3233/jad-221168] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Background: The Beers Criteria identifies potentially inappropriate medications (PIMs) that should be avoided in older adults living with dementia. Objective: The aim of this study was to provide estimates of the prevalence and persistence of PIM use among community-dwelling older adults living with dementia in 2011-2017. Methods: Medicare claims data were used to create an analytic dataset spanning from 2011 to 2017. The analysis included community-dwelling Medicare fee-for-service beneficiaries aged 65 and older who were enrolled in Medicare Part D plans, had diagnosis for dementia, and were alive for at least one calendar year. Dementia status was determined using Medicare Chronic Conditions Date Warehouse (CCW) Chronic Condition categories and Charlson Comorbidity Index. PIM use was defined as 2 or more prescription fills with at least 90 days of total days-supply in a calendar year. Descriptive statistics were used to report the prevalence and persistence of PIM use. Results: Of 1.6 million person-year observations included in the sample, 32.7% used one or more PIMs during a calendar year in 2011-2017. Breakdown by drug classes showed that 14.9% of the sample used anticholinergics, 14.0% used benzodiazepines, and 11.0% used antipsychotics. Conditional on any use, mean annual days-supply for all PIMs was 270.6 days (SD = 102.7). The mean annual days-supply for antipsychotic use was 302.7 days (SD = 131.2). Conclusion: Significant proportion of community-dwelling older adults with dementia used one or more PIMs, often for extended periods of time. The antipsychotic use in the community-dwelling older adults with dementia remains as a significant problem.
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Affiliation(s)
- Yuna H. Bae-Shaaw
- University of Southern California School of Pharmacy, Los Angeles, CA, USA
| | - Victoria Shier
- University of Southern California Sol Price School of Public Policy, Los Angeles, CA, USA
| | - Neeraj Sood
- University of Southern California Sol Price School of Public Policy, Los Angeles, CA, USA
| | - Seth A. Seabury
- University of Southern California School of Pharmacy, Los Angeles, CA, USA
| | - Geoffrey Joyce
- University of Southern California School of Pharmacy, Los Angeles, CA, USA
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Zhu CW, Gu Y, Cosentino S, Kociolek AJ, Hernandez M, Stern Y. Racial/Ethnic Disparities in Misidentification of Dementia in Medicare Claims: Results from the Washington Heights-Inwood Columbia Aging Project. J Alzheimers Dis 2023; 96:359-368. [PMID: 37781805 PMCID: PMC10759149 DOI: 10.3233/jad-230584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
BACKGROUND Misidentification of dementia in Medicare claims is quite common. OBJECTIVE We examined potential race/ethnic disparities in misidentification of dementia in Medicare claims in a diverse cohort of older adults who underwent careful clinical assessment. METHODS Participants were enrolled in the Washington Heights-Inwood Columbia Aging Project (WHICAP), a multiethnic, population-based, prospective study of cognitive aging in which dementia status was assessed using a rigorous clinical protocol. ICD-9-CM and ICD-10-CM diagnosis codes in all available Medicare claims (1999-2019) were compared to clinical dementia diagnosis and categorized into three mutually exclusive groups: 1) congruent-, 2) over-, and 3) under- identification during the study period. Multinomial logistic regression model was used to examine the relationship between race (White, African American/Black, other) and ethnicity (Hispanic/Latinx, non-Hispanic/Latinx) and congruency of dementia identification after controlling for clinical (cognition, function, comorbidities) and demographic characteristics (age, sex, education), and inpatient and outpatient utilization. RESULTS Across all person-years, 88.4% had congruent identification of dementia compared to clinical diagnosis, in 4.1% of the times participants were over-identified with dementia, and 7.5% of the times the participants were under-identified. Rates of misidentification was higher in minority participants than in White, non-Hispanic participants. Multivariable estimation results showed that the probability of over-identification with dementia was 2.2% higher for African American/Black than White (p = 0.05) and 2.7% higher for Hispanic participants than non-Hispanics (p = 0.03) participants. Differences in under-identification by race/ethnicity were not statistically significant. CONCLUSIONS African American/Black and Hispanic participants were more likely over-identified with dementia in Medicare claims.
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Affiliation(s)
- Carolyn W. Zhu
- Brookdale Department of Geriatrics and Palliative Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- James J Peters VA Medical Center, Bronx, NY, USA
| | - Yian Gu
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA
- Gertrude H. Sergievsky Center, Columbia University Irving Medical Center, New York, NY, USA
- Taub Institute for Research in Alzheimer’s Disease and the Aging, Columbia University Irving Medical Center, New York, NY, USA
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Stephanie Cosentino
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA
- Gertrude H. Sergievsky Center, Columbia University Irving Medical Center, New York, NY, USA
- Taub Institute for Research in Alzheimer’s Disease and the Aging, Columbia University Irving Medical Center, New York, NY, USA
| | - Anton J. Kociolek
- Taub Institute for Research in Alzheimer’s Disease and the Aging, Columbia University Irving Medical Center, New York, NY, USA
| | - Michelle Hernandez
- Taub Institute for Research in Alzheimer’s Disease and the Aging, Columbia University Irving Medical Center, New York, NY, USA
| | - Yaakov Stern
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA
- Gertrude H. Sergievsky Center, Columbia University Irving Medical Center, New York, NY, USA
- Taub Institute for Research in Alzheimer’s Disease and the Aging, Columbia University Irving Medical Center, New York, NY, USA
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30
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Zhu Y, Olchanski N, Cohen JT, Freund KM, Faul JD, Fillit HM, Neumann PJ, Lin PJ. Life-Sustaining Treatments Among Medicare Beneficiaries with and without Dementia at the End of Life. J Alzheimers Dis 2023; 96:1183-1193. [PMID: 37955089 PMCID: PMC10777481 DOI: 10.3233/jad-230692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
BACKGROUND Older adults with dementia including Alzheimer's disease may have difficulty communicating their treatment preferences and thus may receive intensive end-of-life (EOL) care that confers limited benefits. OBJECTIVE This study compared the use of life-sustaining interventions during the last 90 days of life among Medicare beneficiaries with and without dementia. METHODS This cohort study utilized population-based national survey data from the 2000-2016 Health and Retirement Study linked with Medicare and Medicaid claims. Our sample included Medicare fee-for-service beneficiaries aged 65 years or older deceased between 2000 and 2016. The main outcome was receipt of any life-sustaining interventions during the last 90 days of life, including mechanical ventilation, tracheostomy, tube feeding, and cardiopulmonary resuscitation. We used logistic regression, stratified by nursing home use, to examine dementia status (no dementia, non-advanced dementia, advanced dementia) and patient characteristics associated with receiving those interventions. RESULTS Community dwellers with dementia were more likely than those without dementia to receive life-sustaining treatments in their last 90 days of life (advanced dementia: OR = 1.83 [1.42-2.35]; non-advanced dementia: OR = 1.16 [1.01-1.32]). Advance care planning was associated with lower odds of receiving life-sustaining treatments in the community (OR = 0.84 [0.74-0.96]) and in nursing homes (OR = 0.68 [0.53-0.86]). More beneficiaries with advanced dementia received interventions discordant with their EOL treatment preferences. CONCLUSIONS Community dwellers with advanced dementia were more likely to receive life-sustaining treatments at the end of life and such treatments may be discordant with their EOL wishes. Enhancing advance care planning and patient-physician communication may improve EOL care quality for persons with dementia.
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Affiliation(s)
- Yingying Zhu
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, MA, USA
| | - Natalia Olchanski
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, MA, USA
| | - Joshua T. Cohen
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, MA, USA
| | - Karen M. Freund
- Center for Health Equity Research, Department of Medicine, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, USA
| | - Jessica D. Faul
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, MI, USA
| | | | - Peter J. Neumann
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, MA, USA
| | - Pei-Jung Lin
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, MA, USA
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Charpignon ML, Vakulenko-Lagun B, Zheng B, Magdamo C, Su B, Evans K, Rodriguez S, Sokolov A, Boswell S, Sheu YH, Somai M, Middleton L, Hyman BT, Betensky RA, Finkelstein SN, Welsch RE, Tzoulaki I, Blacker D, Das S, Albers MW. Causal inference in medical records and complementary systems pharmacology for metformin drug repurposing towards dementia. Nat Commun 2022; 13:7652. [PMID: 36496454 PMCID: PMC9741618 DOI: 10.1038/s41467-022-35157-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 11/21/2022] [Indexed: 12/13/2022] Open
Abstract
Metformin, a diabetes drug with anti-aging cellular responses, has complex actions that may alter dementia onset. Mixed results are emerging from prior observational studies. To address this complexity, we deploy a causal inference approach accounting for the competing risk of death in emulated clinical trials using two distinct electronic health record systems. In intention-to-treat analyses, metformin use associates with lower hazard of all-cause mortality and lower cause-specific hazard of dementia onset, after accounting for prolonged survival, relative to sulfonylureas. In parallel systems pharmacology studies, the expression of two AD-related proteins, APOE and SPP1, was suppressed by pharmacologic concentrations of metformin in differentiated human neural cells, relative to a sulfonylurea. Together, our findings suggest that metformin might reduce the risk of dementia in diabetes patients through mechanisms beyond glycemic control, and that SPP1 is a candidate biomarker for metformin's action in the brain.
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Affiliation(s)
- Marie-Laure Charpignon
- Institute for Data, Systems, and Society, Massachusetts Institute of Technology, Cambridge, MA, USA
| | | | - Bang Zheng
- Ageing Epidemiology Research Unit, School of Public Health, Imperial College London, London, UK
| | - Colin Magdamo
- Department of Neurology, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA
| | - Bowen Su
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Kyle Evans
- Department of Neurology, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA
- Laboratory of Systems Pharmacology, Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA, USA
| | - Steve Rodriguez
- Department of Neurology, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA
- Laboratory of Systems Pharmacology, Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA, USA
| | - Artem Sokolov
- Laboratory of Systems Pharmacology, Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA, USA
| | - Sarah Boswell
- Laboratory of Systems Pharmacology, Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA, USA
| | - Yi-Han Sheu
- Department of Psychiatry, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA
| | - Melek Somai
- Inception Labs, Collaborative for Health Delivery Sciences, Medical College of Wisconsin, Wauwatosa, WI, USA
| | - Lefkos Middleton
- Ageing Epidemiology Research Unit, School of Public Health, Imperial College London, London, UK
- Public Health Directorate, Imperial College London NHS Healthcare Trust, London, UK
| | - Bradley T Hyman
- Department of Neurology, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA
| | - Rebecca A Betensky
- Department of Biostatistics, School of Global Public Health, New York University, New York, NY, USA
| | - Stan N Finkelstein
- Institute for Data, Systems, and Society, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Clinical Informatics, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Roy E Welsch
- Institute for Data, Systems, and Society, Massachusetts Institute of Technology, Cambridge, MA, USA
- Sloan School of Management, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Ioanna Tzoulaki
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK.
- Dementia Research Institute, Imperial College London, London, UK.
- Department of Hygiene and Epidemiology, University of Ioannina, Ioannina, Greece.
| | - Deborah Blacker
- Department of Psychiatry, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA.
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Sudeshna Das
- Department of Neurology, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA.
| | - Mark W Albers
- Department of Neurology, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA.
- Laboratory of Systems Pharmacology, Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA, USA.
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Keohane LM, Nikpay S, Braun K, Cheng A, Stevenson D, Buntin MB, Yu D, Blot WJ, Lipworth L. Association of Race and Income with Incident Diagnosis of Alzheimer's Disease and Related Dementias among Black and White Older Adults. J Appl Gerontol 2022; 42:898-908. [PMID: 36469682 PMCID: PMC10081951 DOI: 10.1177/07334648221142851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
To investigate how differences in income and education levels may contribute to disparities in incidence of Alzheimer's disease and related dementia (ADRD), we compared ADRD incidence in traditional Medicare claims for 11,132 Black and 7703 White participants aged 65 and over from a predominantly low-income cohort. We examined whether the relationship between ADRD incidence and race varied by income or education. Based on 2015 incident ADRD diagnoses, Black and White participants had unadjusted incidence rates of 26.5 and 23.2 cases per 1000 person-years, respectively (rate ratio 1.14, 95% CI 1.05-1.25). In multivariable Cox proportional hazard models, the relationship between race and incident ADRD diagnosis did not vary by education level (p-interaction = 0.748) but was modified by income level (p-interaction = 0.007), with higher ADRD incidence among Black participants observed only among higher income groups. These results highlight the importance of understanding how race and economic factors influence ADRD incidence and diagnosis rates.
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Affiliation(s)
- Laura M Keohane
- Department of Health Policy, 12327Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Sayeh Nikpay
- 43353University of Minnesota School of Public Health, MN, USA
| | - Kyle Braun
- Department of Health Policy, 12327Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Audrey Cheng
- Department of Health Policy, 12327Vanderbilt University School of Medicine, Nashville, TN, USA
| | - David Stevenson
- Department of Health Policy, 12327Vanderbilt University School of Medicine, Nashville, TN, USA.,The Geriatric Research, Education and Clinical Center Service, Department of Veterans Affairs Medical Center, Tennessee Valley Healthcare System, Nashville, USA
| | - Melinda B Buntin
- Department of Health Policy, 12327Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Danxia Yu
- Department of Medicine, 12327Vanderbilt University School of Medicine, Nashville, TN, USA
| | - William J Blot
- Department of Medicine, 12327Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Loren Lipworth
- Department of Medicine, 12327Vanderbilt University School of Medicine, Nashville, TN, USA
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Gillis C, Montenigro P, Nejati M, Maserejian N. Estimating prevalence of early Alzheimer's disease in the United States, accounting for racial and ethnic diversity. Alzheimers Dement 2022; 19:1841-1848. [PMID: 36322470 DOI: 10.1002/alz.12822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 11/13/2022]
Abstract
INTRODUCTION Updated estimates of the US Alzheimer's disease (AD) population, including under-represented populations, are needed to improve clinical trial diversity. METHODS A step-wise approach calculating prevalent numbers from clinical syndrome to biomarker-positive mild cognitive impairment (MCI) due to AD and mild AD was developed, using age-and-race/ethnicity-stratified data where available. RESULTS The estimated percentage of Americans aged ≥ 65 years with MCI due to AD was 9.2% of non-Hispanic Whites, 13.6% of non-Hispanic Blacks, 11.1% Hispanics, and 9.7% other race/ethnicities. The estimated percentage of Americans aged ≥ 65 years with mild dementia due to AD among non-Hispanic Whites was 3.7%, non-Hispanic Blacks 7.0%, Hispanics 5.3%, and 3.9% other race/ethnicities. Of these early-stage AD cases, few are likely diagnosed, ranging from 13% of prevalent non-Hispanic Black cases to 27% of non-Hispanic White cases. DISCUSSION Under-representation in clinical trials may be improved by setting recruitment goals reflecting the diversity of the AD patient population and supporting efforts toward timely diagnosis.
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Davis MA, Lee KA, Harris M, Ha J, Langa KM, Bynum JPW, Hoffman GJ. Time to dementia diagnosis by race: A retrospective cohort study. J Am Geriatr Soc 2022; 70:3250-3259. [PMID: 36200557 PMCID: PMC9669160 DOI: 10.1111/jgs.18078] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/25/2022] [Accepted: 08/29/2022] [Indexed: 01/12/2023]
Abstract
BACKGROUND Non-Hispanic Black individuals may be less likely to receive a diagnosis of dementia compared to non-Hispanic White individuals. These findings raise important questions regarding which factors may explain this observed association and any differences in the time to which disparities emerge following dementia onset. METHODS We conducted a retrospective cohort study using survey data from the 1995 to 2016 Health and Retirement Study linked with Medicare fee-for-service claims. Using the Hurd algorithm (a regression-based approach), we identified dementia onset among older adult respondents (age ≥65 years) from the Telephone Interview for Cognitive Status and proxy respondents. We determined date from dementia onset to diagnosis using Medicare data up to 3 years following onset using a list of established diagnosis codes. Cox Proportional Hazards modeling was used to examine the association between an individual's reported race and likelihood of diagnosis after accounting for sociodemographic characteristics, income, education, functional status, and healthcare use. RESULTS We identified 3435 older adults who experienced a new onset of dementia. Among them, 30.1% received a diagnosis within 36 months of onset. In unadjusted analyses, the difference in cumulative proportion diagnosed by race continued to increase across time following onset, p-value <0.001. 23.8% of non-Hispanic Black versus 31.4% of non-Hispanic White participants were diagnosed within 36 months of dementia onset, Hazard Ratio = 0.73 (95% CI: 0.61, 0.88). The association persisted after adjustment for functional status and healthcare use; however, these factors had less of an impact on the strength of the association than income and level of education. CONCLUSION Lower diagnosis rates of dementia among non-Hispanic Black individuals persists after adjustment for sociodemographic characteristics, functional status, and healthcare use. Further understanding of barriers to diagnosis that may be related to social determinants of health is needed to improve dementia-related outcomes among non-Hispanic Black Americans.
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Affiliation(s)
- Matthew A. Davis
- Department of Systems, Populations, and LeadershipUniversity of Michigan School of NursingAnn ArborMichiganUSA,Department of Learning Health SciencesUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Kathryn A. Lee
- Department of Systems, Populations, and LeadershipUniversity of Michigan School of NursingAnn ArborMichiganUSA
| | - Melissa Harris
- Department of Systems, Populations, and LeadershipUniversity of Michigan School of NursingAnn ArborMichiganUSA
| | - Jinkyung Ha
- Division of Geriatric and Palliative Medicine, Department of Internal MedicineUniversity of MichiganAnn ArborMichiganUSA
| | - Kenneth M. Langa
- Survey Research CenterInstitute for Social Research, University of MichiganAnn ArborMichiganUSA,Department of Internal MedicineUniversity of Michigan Medical SchoolAnn ArborMichiganUSA,Veterans Affairs Ann Arbor Center for Clinical Management ResearchAnn ArborMichiganUSA
| | - Julie P. W. Bynum
- Department of Internal MedicineUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Geoffrey J. Hoffman
- Department of Systems, Populations, and LeadershipUniversity of Michigan School of NursingAnn ArborMichiganUSA
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Schliep KC, Ju S, Foster NL, Smith KR, Varner MM, Østbye T, Tschanz J. How good are medical and death records for identifying dementia? Alzheimers Dement 2022; 18:1812-1823. [PMID: 34873816 PMCID: PMC9170837 DOI: 10.1002/alz.12526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 10/06/2021] [Accepted: 10/12/2021] [Indexed: 01/28/2023]
Abstract
INTRODUCTION Retrospective studies using administrative data may be an efficient way to assess risk factors for dementia if diagnostic accuracy is known. METHODS Within-individual clinical diagnoses of Alzheimer's disease (AD) and all-cause dementia in ambulatory (outpatient) surgery, inpatient, Medicare administrative records and death certificates were compared with research diagnoses among participants of Cache County Study on Memory, Health, and Aging (CCSMHA) (1995-2008, N = 5092). RESULTS Combining all sources of clinical health data increased sensitivity for identifying all-cause dementia (71%) and AD (48%), while maintaining relatively high specificity (81% and 93%, respectively). Medicare claims had the highest sensitivity for case identification (57% and 40%, respectively). DISCUSSION Administrative health data may provide a less accurate method than a research evaluation for identifying individuals with dementing disease, but accuracy is improved by combining health data sources. Assessing all-cause dementia versus a specific cause of dementia such as AD will result in increased sensitivity, but at a cost to specificity.
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Affiliation(s)
- Karen C. Schliep
- Division of Public Health, Department of Family and Preventive Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Shinyoung Ju
- Division of Public Health, Department of Family and Preventive Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Norman L. Foster
- Center for Alzheimer’s Care, Imaging & Research, Department of Neurology, University of Utah, Salt Lake City, Utah, USA
| | - Ken R. Smith
- Department of Family and Consumer Studies and Population Sciences/Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA
| | - Michael M. Varner
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, Utah, USA
| | - Truls Østbye
- Department of Family Medicine and Community Health, Duke University Medical Center, Durham, North Carolina, USA
| | - JoAnn Tschanz
- Department of Psychology, Utah State University, Logan, Utah, USA
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Luth EA, Manful A, Prigerson HG, Xiang L, Reich A, Semco R, Weissman JS. Associations between dementia diagnosis and end-of-life care utilization. J Am Geriatr Soc 2022; 70:2871-2883. [PMID: 35822659 PMCID: PMC9588556 DOI: 10.1111/jgs.17952] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 05/27/2022] [Accepted: 06/09/2022] [Indexed: 01/02/2023]
Abstract
BACKGROUND Dementia is a leading cause of death for older adults and is more common among persons from racial/ethnic minoritized groups, who also tend to experience more intensive end-of-life care. This retrospective cohort study compared end-of-life care in persons with and without dementia and identified dementia's moderating effects on the relationship between race/ethnicity and end-of-life care. METHODS Administrative claims data for 463,590 Medicare fee-for-service decedents from 2016 to 2018 were analyzed. Multivariable logistic and linear regression analyses examined the association of dementia with 5 intensive and 2 quality of life-focused measures. Intensity measures included hospital admission, ICU admission, receipt of any of 5 intensive procedures (CPR, mechanical ventilation, intubation, dialysis initiation, and feeding tube insertion), hospital death, and Medicare expenditures (last 30 days of life). Quality of life measures included timely hospice care (>3 days before death) and days at home (last 6 months of life). Models were adjusted for demographic and clinical factors. RESULTS 54% of Medicare decedents were female, 85% non-Hispanic White, 8% non-Hispanic Black, and 4% Hispanic. Overall, 51% had a dementia diagnosis claim. In adjusted models, decedents with dementia had 16%-29% lower odds of receiving intensive services (AOR hospital death: 0.71, 95% CI: 0.70-0.72; AOR hospital admission: 0.84, 95% CI: 0.83-0.86). Patients with dementia had 45% higher odds of receiving timely hospice (AOR: 1.45, 95% CI: 1.42-1.47), but spent 0.74 fewer days at home (adjusted mean: -0.74, 95% CI: (-0.98)-(-0.49)). Compared to non-Hispanic White individuals, persons from racial/ethnic minoritized groups were more likely to receive intensive services. This effect was more pronounced among persons with dementia. CONCLUSIONS Although overall dementia was associated with fewer intensive services near death, beneficiaries from racial/ethnic groups minoritized with dementia experienced more intensive service use. Particular attention is needed to ensure care aligns with the needs and preferences of persons with dementia and from racial/ethnic minoritized groups.
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Affiliation(s)
- Elizabeth A. Luth
- Institute for Health, Healthcare Policy and Aging Research, Department of Family Medicine and Community HealthRutgers UniversityNew BrunswickNew JerseyUSA
| | - Adoma Manful
- School of Medicine, Division of EpidemiologyVanderbilt UniversityNashvilleUSA
| | - Holly G. Prigerson
- Department of Geriatrics and Palliative MedicineWeill Cornell MedicineNew York CityNew YorkUSA
| | - Lingwei Xiang
- Center for Surgery and Public Health, Brigham and Women's HospitalHarvard UniversityCambridgeMassachusettsUSA
| | - Amanda Reich
- Center for Surgery and Public Health, Brigham and Women's HospitalHarvard UniversityCambridgeMassachusettsUSA
| | | | - Joel S. Weissman
- Center for Surgery and Public Health, Brigham and Women's HospitalHarvard UniversityCambridgeMassachusettsUSA
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Shah SK, Adler RR, Xiang L, Clark CJ, Cooper Z, Finlayson E, Kim DH, Lin KJ, Lipsitz SR, Weissman JS. Patients living with dementia have worse outcomes when undergoing high-risk procedures. J Am Geriatr Soc 2022; 70:2838-2846. [PMID: 35637607 PMCID: PMC9588582 DOI: 10.1111/jgs.17893] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 04/18/2022] [Accepted: 05/03/2022] [Indexed: 12/22/2022]
Abstract
BACKGROUND Patients with Alzheimer's Disease and Related Dementias (ADRD) undergoing inpatient procedures represent a population at elevated risk for adverse outcomes including postoperative complications, mortality, and discharge to a higher level of care. Outcomes may be particularly poor in patients with ADRD undergoing high-risk procedures. We sought to determine traditional (e.g., 30-day mortality) and patient-centered (e.g., discharge disposition) outcomes in patients with ADRD undergoing high-risk inpatient procedures. METHODS This retrospective cohort study analyzed electronic health records linked to fee-for-service Medicare claims data at a tertiary care academic health system. All patients from a large multi-hospital health system undergoing high-risk inpatient procedures from October 1, 2015 to September 30, 2017 with continuous Medicare Parts A and B enrollment in the 12 months prior to and 90 days following the procedure were included. RESULTS This study included 6779 patients. 536 (7.9%) had ADRD. A multivariable analysis of outcomes demonstrated higher risks for postoperative complications (OR 1.49, 95% CI 1.23-1.81) and 90-day mortality (OR 1.44 [95% CI 1.09-1.91]) in patients with ADRD compared to those without. Patients with ADRD were more likely to be discharged to a higher level of care (OR 1.70, 95% CI 1.32-2.18) and only 37.3% of patients admitted from home were discharged to home. CONCLUSIONS Compared to those without ADRD, patients living with ADRD undergoing high-risk procedures have poor traditional and patient-centered outcomes including increased risks for 90-day mortality, postoperative complications, longer hospital lengths of stay, and discharge to a higher level of care. These data may be used by patients, their surrogates, and their physicians to help align surgical decision-making with health care goals.
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Affiliation(s)
- Samir K Shah
- Division of Vascular Surgery, University of Florida, Gainesville, Florida, USA
| | - Rachel R Adler
- Center for Surgery and Public Health, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Lingwei Xiang
- Center for Surgery and Public Health, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Clancy J Clark
- Division of Surgical Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Zara Cooper
- Center for Surgery and Public Health, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Emily Finlayson
- Department of Surgery, Phillip R. Lee Institute for Health Policy Studies, University of California, San Francisco, California, USA
| | - Dae Hyun Kim
- Division of Gerontology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Kueiyu Joshua Lin
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Stuart R Lipsitz
- Center for Surgery and Public Health, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Joel S Weissman
- Center for Surgery and Public Health, Brigham and Women's Hospital, Boston, Massachusetts, USA
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Thunell JA, Jacobson M, Joe EB, Zissimopoulos JM. Medicare's Annual Wellness Visit and diagnoses of dementias and cognitive impairment. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2022; 14:e12357. [PMID: 36177153 PMCID: PMC9473487 DOI: 10.1002/dad2.12357] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 07/08/2022] [Accepted: 08/09/2022] [Indexed: 06/16/2023]
Abstract
Introduction Early detection of Alzheimer's disease and related dementias allows clinicians and patients to prepare for future needs and identify treatment options. Medicare's Annual Wellness Visit (AWV) requires detection of cognitive impairment and may increase dementia diagnosis. We estimated the relationship between AWV receipt and incident dementia. Methods Using a retrospective cohort of Medicare Fee-For-Service (FFS) beneficiaries enrolled for at least 3 years from 2009 to 2016 and two-stage least squares, we quantified the relationship between AWV and incident diagnosis of cognitive impairment/dementia, and by race/ethnicity. The county-level change in percent of beneficiaries receiving AWVs was used as an instrumental variable to account for unobserved factors associated with individuals' AWV receipt and diagnosis. Sample included 3,333,617 beneficiaries ages 67 years and older, without dementia at the beginning of the study. Results Beneficiaries included 2,713,573 White, 251,958 Black, 196,845 Hispanic, 95,719 Asian, 11,727 American Indian/Alaska Native, and 63,795 of other race/ethnicity. Using ordinary least squares, dementia incidence was -0.79 percentage points (95% CI -0.81 to -0.76) lower for persons receiving an AWV compared to no AWV. Using instrumental variables reversed the direction of the effect: AWV receipt increased dementia diagnoses by 0.47 percentage points (95% CI 0.14 to 0.80), 15% over baseline. AWVs increased diagnoses 2.0 percentage points (95% CI 0.05 to 3.94) among Blacks, 0.40 percentage points (95% CI 0.05 to 0.75) among Whites, but est were imprecise for Hispanics and Asians. Discussion Increasing AWV take-up and supporting physicians' performance of cognitive assessment may further improve dementia detection in the population and among groups at higher risk of undiagnosed dementia.
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Affiliation(s)
- Johanna A. Thunell
- University of Southern California Price School of Public PolicyLos AngelesCaliforniaUSA
- Schaeffer Center for Health Policy and EconomicsUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Mireille Jacobson
- Schaeffer Center for Health Policy and EconomicsUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
- University of Southern California Leonard Davis School of GerontologyLos AngelesCaliforniaUSA
| | - Elizabeth B. Joe
- University of Southern California Keck School of MedicineLos AngelesCaliforniaUSA
- University of Southern California Department of NeurologyLos AngelesCaliforniaUSA
| | - Julie M. Zissimopoulos
- University of Southern California Price School of Public PolicyLos AngelesCaliforniaUSA
- Schaeffer Center for Health Policy and EconomicsUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
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White L, Ingraham B, Larson E, Fishman P, Park S, Coe NB. Observational study of patient characteristics associated with a timely diagnosis of dementia and mild cognitive impairment without dementia. J Gen Intern Med 2022; 37:2957-2965. [PMID: 34647229 PMCID: PMC9485306 DOI: 10.1007/s11606-021-07169-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 09/24/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND Timely diagnosis of cognitive impairment is a key goal of the National Plan to Address Alzheimer's Disease, but studies of factors associated with a timely diagnosis are limited. OBJECTIVE To identify patient characteristics associated with a timely diagnosis of dementia and mild cognitive impairment (MCI). DESIGN Retrospective observational study using survey data from the Health and Retirement Study (HRS) from 1995-2016 (interview waves 3-13). PARTICIPANTS 4,760 respondents with incident dementia and 1,864 with incident MCI identified using longitudinal measures of cognitive functioning. MAIN MEASURES Timely or delayed diagnosis based on the timing of a self or proxy report of a healthcare provider diagnosis in relation to respondents first dementia or MCI-qualifying cognitive score, sociodemographic characteristics, health status, health care utilization, insurance provider, and year of first qualifying score. KEY RESULTS Only 26.0% of the 4,760 respondents with incident dementia and 11.4% of the 1,864 respondents with incident MCI received a timely diagnosis. Non-Hispanic Black respondents and respondents with less than a college degree were significantly less likely to receive a timely diagnosis of either dementia or MCI than Non-Hispanic White respondents (dementia odds ratio (OR): 0.61, 95% CI: 0.50, 0.75; MCI OR: 0.40, 95% CI: 0.23, 0.70) and those with a college degree (dementia OR for less than high school degree: 0.30, 95% CI: 0.23, 0.38; MCI OR: 0.36, 95% CI: 0.22, 0.60). Respondents that lived alone were also less likely to receive a timely diagnosis of dementia (OR: 0.69, 95% CI: 0.59, 0.81), though not MCI. Timely diagnosis of both conditions increased over time. CONCLUSIONS Targeting resources for timely diagnosis of cognitive impairment to individuals from racial and ethnic minorities, lower educational attainment, and living alone may improve detection and reduce disparities around timely diagnosis of dementia and MCI.
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Affiliation(s)
- Lindsay White
- Center for Health Care Quality and Outcomes, RTI International, Seattle, WA, USA
| | - Bailey Ingraham
- School of Public Health, University of Washington, Seattle, WA, USA
| | - Eric Larson
- Kaiser Permanente Washington Health Research Institute, Seattle, WA, USA
| | - Paul Fishman
- School of Public Health, University of Washington, Seattle, WA, USA
| | - Sungchul Park
- Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
| | - Norma B Coe
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- National Bureau of Economic Research, Cambridge, MA, USA
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Ailshire JA, Walsemann KM, Fisk CE. Regional variation in U.S dementia trends from 2000-2012. SSM Popul Health 2022; 19:101164. [PMID: 35855971 PMCID: PMC9287555 DOI: 10.1016/j.ssmph.2022.101164] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 06/11/2022] [Accepted: 07/04/2022] [Indexed: 01/21/2023] Open
Abstract
Although recent studies report a decline in dementia prevalence among U.S. older adults, national trends may mask subnational variation, particularly given large health and social inequalities linked to geography. To address this gap, we determined if there was subnational variation in reported national dementia trends and if region-specific trends were explained by sociodemographic and health characteristics. Data come from the 2000 (n = 10,447) and 2012 (10,426) waves of the Health and Retirement Study. We used validated methods for dementia classification using proxy and self-respondents. Logistic regression models, adjusted for within-person clustering over time, estimated trends in dementia prevalence by region and census division. We found subnational variation in dementia prevalence in both 2000 and 2012, as well as in change in dementia prevalence during this period. In 2000, dementia prevalence was lowest in the West (8.6%), higher in the Midwest (10.0%) and Northeast (11.1%), and highest in the South (14.6%). Dementia prevalence declined over time across all regions of the U.S. from 2000 to 2012 but remained highest in the South (10.7%) compared to the other regions (7.0-7.8%). Despite downward trends in dementia across the U.S., the prevalence of dementia in the South in 2012 approximated levels found in other regions in 2000. There was relatively less change over time in the West compared to other regions, but dementia prevalence was already quite low in the West in 2000. Within region, trends in dementia prevalence between 2000 and 2012 also varied slightly across census divisions. Subnational variation in changes in dementia prevalence were largely explained by education and health status. Variation in baseline prevalence, as well as differential rates of change, highlight the importance of examining subnational variation in dementia trends.
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Affiliation(s)
- Jennifer A. Ailshire
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, USA
| | | | - Calley E. Fisk
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, USA
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Hoffman GJ, Maust DT, Harris M, Ha J, Davis MA. Medicare spending associated with a dementia diagnosis among older adults. J Am Geriatr Soc 2022; 70:2592-2601. [PMID: 35583388 PMCID: PMC9790668 DOI: 10.1111/jgs.17835] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 03/28/2022] [Accepted: 04/03/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND Over 6 million Americans have Alzheimer's Disease or Related Dementia (ADRD) but whether spikes in spending surrounding a new diagnosis reflect pre-diagnosis morbidity, diagnostic testing, or treatments for comorbidities is unknown. METHODS We used the 1998-2018 Health and Retirement Study and linked Medicare claims from older (≥65) adults to assess incremental quarterly spending changes just before versus just after a clinical diagnosis (diagnosis cohort, n = 2779) and, for comparative purposes, for a cohort screened as impaired based on the validated Telephone Interview for Cognitive Status (TICS) (impairment cohort, n = 2318). Models were adjusted for sociodemographic and health characteristics. Spending patterns were examined separately by sex, race, education, dual eligibility, and geography. RESULTS Among the diagnosis cohort, mean (SD) overall spending was $4773 ($9774) per quarter - 43% of which was spending on hospital care ($2048). In adjusted analyses, spending increased by $8400 (p < 0.001), or 156%, from $5394 in the quarter prior to $13,794 in the quarter including the diagnosis. Among the cohort in which impairment was incidentally detected using the TICS, adjusted spending did not change from just before to after detection of impairment, from $2986 before and $2962 after detection (p = 0.90). Incremental spending changes did not differ by sex, race, education, dual eligibility, or geography. CONCLUSION Large, transient spending increases accompany an ADRD diagnosis that may not be attributed to impairment or changes in functional status due to dementia. Further study may help reveal how treatment for comorbidities is associated with the clinical diagnosis of dementia, with potential implications for Medicare spending.
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Affiliation(s)
- Geoffrey J. Hoffman
- Department of Systems, Populations, and LeadershipUniversity of Michigan School of NursingAnn ArborMichiganUSA
| | - Donovan T. Maust
- Department of PsychiatryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA,Department of Internal MedicineUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Melissa Harris
- Clinical & Translational Science Institute, National Clinician Scholars ProgramDuke UniversityDurhamNorth CarolinaUSA
| | - Jinkyung Ha
- Division of Geriatric and Palliative Medicine, Department of Internal MedicineUniversity of MichiganAnn ArborMichiganUSA
| | - Matthew A. Davis
- Department of Systems, Populations, and LeadershipUniversity of Michigan School of NursingAnn ArborMichiganUSA,Department of Learning Health SciencesUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
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Lim U, Wang S, Park S, Bogumil D, Wu AH, Cheng I, Haiman CA, Le Marchand L, Wilkens LR, White L, Setiawan VW. Risk of Alzheimer's disease and related dementia by sex and race/ethnicity: The Multiethnic Cohort Study. Alzheimers Dement 2022; 18:1625-1634. [PMID: 34882963 PMCID: PMC9177893 DOI: 10.1002/alz.12528] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 07/26/2021] [Accepted: 10/14/2021] [Indexed: 01/24/2023]
Abstract
INTRODUCTION Data are limited for comparison of sex- and race/ethnicity-specific risks of Alzheimer's disease and related dementia (ADRD). METHODS In the population-based Multiethnic Cohort, we estimated the age-standardized diagnostic incidence rate (ASDIR) and relative risk of late-onset ADRD (n = 16,410) among 105,796 participants based on Medicare claims (1999-2014) by sex and race/ethnicity. RESULTS The ASDIR for ADRD was higher for women (17.0 per 1000 person-years) than for men (15.3) and varied across African Americans (22.9 in women, 21.5 in men), Native Hawaiians (19.3, 19.4), Latinos (16.8, 14.7), Whites (16.4, 15.5), Japanese Americans (14.8, 13.8), and Filipinos (12.5, 9.7). Similar risk patterns were observed for AD. Adjustment for education and cardiometabolic diseases attenuated the differences. Accounting for deaths from competing causes increased the sex difference, while reducing the racial/ethnic differences. Less racial/ethnic disparity was detected among apolipoprotein E (APOE) e4 carriers. DISCUSSION More research is needed to understand the sex and racial/ethnic differences in ADRD.
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Affiliation(s)
- Unhee Lim
- Cancer Epidemiology ProgramUniversity of Hawaii Cancer CenterUniversity of Hawaii at ManoaHonoluluHawaiiUSA
| | - Songren Wang
- Department of Population and Public Health SciencesKeck School of Medicine and Norris Comprehensive Cancer CenterUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Song‐Yi Park
- Cancer Epidemiology ProgramUniversity of Hawaii Cancer CenterUniversity of Hawaii at ManoaHonoluluHawaiiUSA
| | - David Bogumil
- Department of Population and Public Health SciencesKeck School of Medicine and Norris Comprehensive Cancer CenterUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Anna H. Wu
- Department of Population and Public Health SciencesKeck School of Medicine and Norris Comprehensive Cancer CenterUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Iona Cheng
- Department of Epidemiology and BiostatisticsUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Christopher A. Haiman
- Department of Population and Public Health SciencesKeck School of Medicine and Norris Comprehensive Cancer CenterUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Loïc Le Marchand
- Cancer Epidemiology ProgramUniversity of Hawaii Cancer CenterUniversity of Hawaii at ManoaHonoluluHawaiiUSA
| | - Lynne R. Wilkens
- Cancer Epidemiology ProgramUniversity of Hawaii Cancer CenterUniversity of Hawaii at ManoaHonoluluHawaiiUSA
| | - Lon White
- Pacific Health Research and Education InstituteHonoluluHawaiiUSA,John A Burns School of MedicineUniversity of Hawaii at ManoaHonoluluHawaiiUSA
| | - V. Wendy Setiawan
- Department of Population and Public Health SciencesKeck School of Medicine and Norris Comprehensive Cancer CenterUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
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Yang JJ, Keohane LM, Pan XF, Qu R, Shu XO, Lipworth L, Braun K, Steinwandel MD, Dai Q, Shrubsole M, Zheng W, Blot WJ, Yu D. Association of Healthy Lifestyles With Risk of Alzheimer Disease and Related Dementias in Low-Income Black and White Americans. Neurology 2022; 99:e944-e953. [PMID: 35697505 PMCID: PMC9502739 DOI: 10.1212/wnl.0000000000200774] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 04/08/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Although the importance of healthy lifestyles for preventing Alzheimer disease and related dementias (ADRD) has been recognized, epidemiologic evidence remains limited for non-White or low-income individuals who bear disproportionate burdens of ADRD. This population-based cohort study aims to investigate associations of lifestyle factors, individually and together, with the risk of ADRD among socioeconomically disadvantaged Americans. METHODS In the Southern Community Cohort Study, comprising two-thirds self-reported Black and primarily low-income Americans, we identified incident ADRD using claims data among participants enrolled in Medicare for at least 12 consecutive months after age 65 years. Five lifestyle factors-tobacco smoking, alcohol consumption, leisure-time physical activity (LTPA), sleep hours, and diet quality-were each scored 0 (unhealthy), 1 (intermediate), or 2 (healthy) based on the health guidelines. A composite lifestyle score was created by summing all scores. Cox regression was used to estimate hazard ratios (HRs, 95% CIs) for incident ADRD, treating death as a competing risk. RESULTS We identified 1,694 patients with newly diagnosed ADRD among 17,209 participants during a median follow-up of 4.0 years in claims data; the mean age at ADRD diagnosis was 74.0 years. Healthy lifestyles were individually associated with an 11%-25% reduced risk of ADRD: multivariable-adjusted HR (95% CI) was 0.87 (0.76-0.99) for never vs current smoking, 0.81 (0.72-0.92) for low-to-moderate vs no alcohol consumption, 0.89 (0.77-1.03) for ≥150 minutes of moderate or ≥75 minutes of vigorous LTPA each week vs none, 0.75 (0.64-0.87) for 7-9 hours vs >9 hours of sleep, and 0.85 (0.75-0.96) for the highest vs lowest tertiles of the Healthy Eating Index. The composite lifestyle score showed a dose-response association with up to 36% reduced risk of ADRD: multivariable-adjusted HRs (95% CIs) across quartiles were 1 (ref), 0.88 (0.77-0.99), 0.79 (0.70-0.90), and 0.64 (0.55-0.74); p trend <0.001. The beneficial associations were observed regardless of participants' sociodemographics (e.g., race, education, and income) and health conditions (e.g., history of cardiometabolic diseases and depression). DISCUSSION Our findings support significant benefits of healthy lifestyles for ADRD prevention among socioeconomically disadvantaged Americans, suggesting that promoting healthy lifestyles and reducing barriers to lifestyle changes are crucial to tackling the growing burden and disparities posed by ADRD.
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Affiliation(s)
- Jae Jeong Yang
- From the Division of Epidemiology (J.J.Y., X.-F.P., R.Q., X.-O.S., L.L., Q.D., M.S., W.Z., W.J.B., D.Y.), Department of Medicine, Vanderbilt University Medical Center; Department of Health Policy (L.M.K., K.B.), Vanderbilt University School of Medicine; and International Epidemiology Field Station (M.D.S.), Vanderbilt University Medical Center, Nashville, TN
| | - Laura M Keohane
- From the Division of Epidemiology (J.J.Y., X.-F.P., R.Q., X.-O.S., L.L., Q.D., M.S., W.Z., W.J.B., D.Y.), Department of Medicine, Vanderbilt University Medical Center; Department of Health Policy (L.M.K., K.B.), Vanderbilt University School of Medicine; and International Epidemiology Field Station (M.D.S.), Vanderbilt University Medical Center, Nashville, TN
| | - Xiong-Fei Pan
- From the Division of Epidemiology (J.J.Y., X.-F.P., R.Q., X.-O.S., L.L., Q.D., M.S., W.Z., W.J.B., D.Y.), Department of Medicine, Vanderbilt University Medical Center; Department of Health Policy (L.M.K., K.B.), Vanderbilt University School of Medicine; and International Epidemiology Field Station (M.D.S.), Vanderbilt University Medical Center, Nashville, TN
| | - Ruiqi Qu
- From the Division of Epidemiology (J.J.Y., X.-F.P., R.Q., X.-O.S., L.L., Q.D., M.S., W.Z., W.J.B., D.Y.), Department of Medicine, Vanderbilt University Medical Center; Department of Health Policy (L.M.K., K.B.), Vanderbilt University School of Medicine; and International Epidemiology Field Station (M.D.S.), Vanderbilt University Medical Center, Nashville, TN
| | - Xiao-Ou Shu
- From the Division of Epidemiology (J.J.Y., X.-F.P., R.Q., X.-O.S., L.L., Q.D., M.S., W.Z., W.J.B., D.Y.), Department of Medicine, Vanderbilt University Medical Center; Department of Health Policy (L.M.K., K.B.), Vanderbilt University School of Medicine; and International Epidemiology Field Station (M.D.S.), Vanderbilt University Medical Center, Nashville, TN
| | - Loren Lipworth
- From the Division of Epidemiology (J.J.Y., X.-F.P., R.Q., X.-O.S., L.L., Q.D., M.S., W.Z., W.J.B., D.Y.), Department of Medicine, Vanderbilt University Medical Center; Department of Health Policy (L.M.K., K.B.), Vanderbilt University School of Medicine; and International Epidemiology Field Station (M.D.S.), Vanderbilt University Medical Center, Nashville, TN
| | - Kyle Braun
- From the Division of Epidemiology (J.J.Y., X.-F.P., R.Q., X.-O.S., L.L., Q.D., M.S., W.Z., W.J.B., D.Y.), Department of Medicine, Vanderbilt University Medical Center; Department of Health Policy (L.M.K., K.B.), Vanderbilt University School of Medicine; and International Epidemiology Field Station (M.D.S.), Vanderbilt University Medical Center, Nashville, TN
| | - Mark D Steinwandel
- From the Division of Epidemiology (J.J.Y., X.-F.P., R.Q., X.-O.S., L.L., Q.D., M.S., W.Z., W.J.B., D.Y.), Department of Medicine, Vanderbilt University Medical Center; Department of Health Policy (L.M.K., K.B.), Vanderbilt University School of Medicine; and International Epidemiology Field Station (M.D.S.), Vanderbilt University Medical Center, Nashville, TN
| | - Qi Dai
- From the Division of Epidemiology (J.J.Y., X.-F.P., R.Q., X.-O.S., L.L., Q.D., M.S., W.Z., W.J.B., D.Y.), Department of Medicine, Vanderbilt University Medical Center; Department of Health Policy (L.M.K., K.B.), Vanderbilt University School of Medicine; and International Epidemiology Field Station (M.D.S.), Vanderbilt University Medical Center, Nashville, TN
| | - Martha Shrubsole
- From the Division of Epidemiology (J.J.Y., X.-F.P., R.Q., X.-O.S., L.L., Q.D., M.S., W.Z., W.J.B., D.Y.), Department of Medicine, Vanderbilt University Medical Center; Department of Health Policy (L.M.K., K.B.), Vanderbilt University School of Medicine; and International Epidemiology Field Station (M.D.S.), Vanderbilt University Medical Center, Nashville, TN
| | - Wei Zheng
- From the Division of Epidemiology (J.J.Y., X.-F.P., R.Q., X.-O.S., L.L., Q.D., M.S., W.Z., W.J.B., D.Y.), Department of Medicine, Vanderbilt University Medical Center; Department of Health Policy (L.M.K., K.B.), Vanderbilt University School of Medicine; and International Epidemiology Field Station (M.D.S.), Vanderbilt University Medical Center, Nashville, TN
| | - William J Blot
- From the Division of Epidemiology (J.J.Y., X.-F.P., R.Q., X.-O.S., L.L., Q.D., M.S., W.Z., W.J.B., D.Y.), Department of Medicine, Vanderbilt University Medical Center; Department of Health Policy (L.M.K., K.B.), Vanderbilt University School of Medicine; and International Epidemiology Field Station (M.D.S.), Vanderbilt University Medical Center, Nashville, TN
| | - Danxia Yu
- From the Division of Epidemiology (J.J.Y., X.-F.P., R.Q., X.-O.S., L.L., Q.D., M.S., W.Z., W.J.B., D.Y.), Department of Medicine, Vanderbilt University Medical Center; Department of Health Policy (L.M.K., K.B.), Vanderbilt University School of Medicine; and International Epidemiology Field Station (M.D.S.), Vanderbilt University Medical Center, Nashville, TN.
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Noori A, Magdamo C, Liu X, Tyagi T, Li Z, Kondepudi A, Alabsi H, Rudmann E, Wilcox D, Brenner L, Robbins GK, Moura L, Zafar S, Benson NM, Hsu J, R Dickson J, Serrano-Pozo A, Hyman BT, Blacker D, Westover MB, Mukerji SS, Das S. Development and Evaluation of a Natural Language Processing Annotation Tool to Facilitate Phenotyping of Cognitive Status in Electronic Health Records: Diagnostic Study. J Med Internet Res 2022; 24:e40384. [PMID: 36040790 PMCID: PMC9472045 DOI: 10.2196/40384] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/29/2022] [Accepted: 07/31/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Electronic health records (EHRs) with large sample sizes and rich information offer great potential for dementia research, but current methods of phenotyping cognitive status are not scalable. OBJECTIVE The aim of this study was to evaluate whether natural language processing (NLP)-powered semiautomated annotation can improve the speed and interrater reliability of chart reviews for phenotyping cognitive status. METHODS In this diagnostic study, we developed and evaluated a semiautomated NLP-powered annotation tool (NAT) to facilitate phenotyping of cognitive status. Clinical experts adjudicated the cognitive status of 627 patients at Mass General Brigham (MGB) health care, using NAT or traditional chart reviews. Patient charts contained EHR data from two data sets: (1) records from January 1, 2017, to December 31, 2018, for 100 Medicare beneficiaries from the MGB Accountable Care Organization and (2) records from 2 years prior to COVID-19 diagnosis to the date of COVID-19 diagnosis for 527 MGB patients. All EHR data from the relevant period were extracted; diagnosis codes, medications, and laboratory test values were processed and summarized; clinical notes were processed through an NLP pipeline; and a web tool was developed to present an integrated view of all data. Cognitive status was rated as cognitively normal, cognitively impaired, or undetermined. Assessment time and interrater agreement of NAT compared to manual chart reviews for cognitive status phenotyping was evaluated. RESULTS NAT adjudication provided higher interrater agreement (Cohen κ=0.89 vs κ=0.80) and significant speed up (time difference mean 1.4, SD 1.3 minutes; P<.001; ratio median 2.2, min-max 0.4-20) over manual chart reviews. There was moderate agreement with manual chart reviews (Cohen κ=0.67). In the cases that exhibited disagreement with manual chart reviews, NAT adjudication was able to produce assessments that had broader clinical consensus due to its integrated view of highlighted relevant information and semiautomated NLP features. CONCLUSIONS NAT adjudication improves the speed and interrater reliability for phenotyping cognitive status compared to manual chart reviews. This study underscores the potential of an NLP-based clinically adjudicated method to build large-scale dementia research cohorts from EHRs.
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Affiliation(s)
- Ayush Noori
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
| | - Colin Magdamo
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
| | - Xiao Liu
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
| | - Tanish Tyagi
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
| | - Zhaozhi Li
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
| | - Akhil Kondepudi
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
| | - Haitham Alabsi
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Emily Rudmann
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
- Vaccine and Immunotherapy Center, Division of Infectious Disease, Boston, MA, United States
| | - Douglas Wilcox
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Laura Brenner
- Harvard Medical School, Boston, MA, United States
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Boston, MA, United States
| | - Gregory K Robbins
- Harvard Medical School, Boston, MA, United States
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, United States
| | - Lidia Moura
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Sahar Zafar
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Nicole M Benson
- Harvard Medical School, Boston, MA, United States
- Mongan Institute, Massachusetts General Hospital, Boston, MA, United States
- McLean Hospital, Belmont, MA, United States
| | - John Hsu
- Harvard Medical School, Boston, MA, United States
- Mongan Institute, Massachusetts General Hospital, Boston, MA, United States
| | - John R Dickson
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Alberto Serrano-Pozo
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Bradley T Hyman
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Deborah Blacker
- Harvard Medical School, Boston, MA, United States
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, United States
| | - M Brandon Westover
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Shibani S Mukerji
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, United States
| | - Sudeshna Das
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
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Joyce G, Ferido P, Thunell J, Tysinger B, Zissimopoulos J. Benzodiazepine use and the risk of dementia. ALZHEIMER'S & DEMENTIA (NEW YORK, N. Y.) 2022; 8:e12309. [PMID: 35874428 PMCID: PMC9297381 DOI: 10.1002/trc2.12309] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/14/2022] [Accepted: 05/05/2022] [Indexed: 04/26/2023]
Abstract
Introduction Benzodiazepines (BZDs) are commonly prescribed for anxiety and agitations, which are early symptoms of Alzheimer's disease and related dementias (ADRD). It is unclear whether BZDs causally affect ADRD risk or are prescribed in response to early symptoms of dementia. Methods We replicate prior case-control studies using longitudinal Medicare claims. To mitigate bias from prodromal use, we compare rates of ADRD diagnosis for beneficiaries exposed and unexposed to BZDs for cervical/lumbar pain, stenosis, and sciatica, none of which are associated with dementia. Results Approximately 8% of Medicare beneficiaries used a BZD in 2007, increasing to nearly 13% by 2013. Estimates from case-control designs are sensitive to duration of look-back period, health histories, medication use, and exclusion of decedents. Incident BZD use is not associated with an increased risk of dementia in an "uncontaminated" sample of beneficiaries prescribed a BZD for pain (odds ratios (ORs) of 1.007 [95% confidence interval [CI] = 0.885, 1.146] and 0.986 [95% CI = 0.877, 1.108], respectively, in the 2013 and 2013 to 2015 pooled samples). Higher levels of BZD exposure (>365 days over a 2-year period) are associated with increased odds of a dementia diagnosis, but the results are not statistically significant at the 5% or 10% levels (1.190 [95% CI = 0.925, 1.531] and 1.167 [95% CI = 0.919, 1.483]). Discussion We find little evidence of a causal relation between BZD use and dementia risk. Nonetheless, providers should limit the extended use in elderly populations.
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Affiliation(s)
- Geoffrey Joyce
- University of Southern California (USC)Schaeffer Center for Health Policy and EconomicsLos AngelesCALos Angeles County
- USC School of PharmacyLos AngelesCALos Angeles County
| | - Patricia Ferido
- University of Southern California (USC)Schaeffer Center for Health Policy and EconomicsLos AngelesCALos Angeles County
| | - Johanna Thunell
- University of Southern California (USC)Schaeffer Center for Health Policy and EconomicsLos AngelesCALos Angeles County
| | - Bryan Tysinger
- University of Southern California (USC)Schaeffer Center for Health Policy and EconomicsLos AngelesCALos Angeles County
- USC Price School of Public PolicyLos AngelesCALos Angeles County
| | - Julie Zissimopoulos
- University of Southern California (USC)Schaeffer Center for Health Policy and EconomicsLos AngelesCALos Angeles County
- USC Price School of Public PolicyLos AngelesCALos Angeles County
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McCarthy EP, Chang CH, Tilton N, Kabeto MU, Langa KM, Bynum JPW. Validation of Claims Algorithms to Identify Alzheimer's Disease and Related Dementias. J Gerontol A Biol Sci Med Sci 2022; 77:1261-1271. [PMID: 34919686 PMCID: PMC9159657 DOI: 10.1093/gerona/glab373] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Using billing data generated through health care delivery to identify individuals with dementia has become important in research. To inform tradeoffs between approaches, we tested the validity of different Medicare claims-based algorithms. METHODS We included 5 784 Medicare-enrolled, Health and Retirement Study participants aged older than 65 years in 2012 clinically assessed for cognitive status over multiple waves and determined performance characteristics of different claims-based algorithms. RESULTS Positive predictive value (PPV) of claims ranged from 53.8% to 70.3% and was highest using a revised algorithm and 1 year of observation. The tradeoff of greater PPV was lower sensitivity; sensitivity could be maximized using 3 years of observation. All algorithms had low sensitivity (31.3%-56.8%) and high specificity (92.3%-98.0%). Algorithm test performance varied by participant characteristics, including age and race. CONCLUSION Revised algorithms for dementia diagnosis using Medicare administrative data have reasonable accuracy for research purposes, but investigators should be cognizant of the tradeoffs in accuracy among the approaches they consider.
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Affiliation(s)
- Ellen P McCarthy
- Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, Boston, Massachusetts, USA.,Division of Gerontology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Chiang-Hua Chang
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA.,Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, Michigan, USA
| | - Nicholas Tilton
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Mohammed U Kabeto
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA.,Institute for Social Research, University of Michigan, Ann Arbor, Michigan, USA
| | - Kenneth M Langa
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA.,Institute for Social Research, University of Michigan, Ann Arbor, Michigan, USA
| | - Julie P W Bynum
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA.,Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, Michigan, USA
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Lin PJ, Zhu Y, Olchanski N, Cohen JT, Neumann PJ, Faul JD, Fillit HM, Freund KM. Racial and Ethnic Differences in Hospice Use and Hospitalizations at End-of-Life Among Medicare Beneficiaries With Dementia. JAMA Netw Open 2022; 5:e2216260. [PMID: 35679046 PMCID: PMC9185179 DOI: 10.1001/jamanetworkopen.2022.16260] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
IMPORTANCE The pool of studies examining ethnic and racial differences in hospice use and end-of-life hospitalizations among patients with dementia is limited and results are conflicting, making it difficult to assess health care needs of underresourced racial and ethnic groups. OBJECTIVE To explore differences in end-of-life utilization of hospice and hospital services among patients with dementia by race and ethnicity. DESIGN, SETTING, AND PARTICIPANTS This cohort study used national survey data from the Health and Retirement Study linked with Medicare and Medicaid claims that reflected a range of socioeconomic, health, and psychosocial characteristics. Eligible participants were Medicare fee-for-service beneficiaries aged 65 years or older diagnosed with dementia who died between 2000 and 2016. Analyses were performed from June to December 2021. EXPOSURES Race and ethnicity. MAIN OUTCOMES AND MEASURES We examined the frequency and costs of hospice care, emergency department (ED) visits, and hospitalizations during the last 180 days of life among Medicare decedents with dementia. We analyzed the proportion of dementia decedents with advance care planning and their end-of-life care preferences. RESULTS The cohort sample included 5058 beneficiaries with dementia (mean [SD] age, 85.5 [8.0] years; 3038 women [60.1%]; 809 [16.0%] non-Hispanic Black, 357 [7.1%] Hispanic, and 3892 non-Hispanic White respondents [76.9%]). In adjusted analysis, non-Hispanic Black decedents (odds ratio [OR], 0.65; 95% CI, 0.55-0.78), nursing home residents (OR, 0.81; 95% CI, 0.71-0.93), and survey respondents represented by a proxy (OR, 0.84; 95% CI, 0.71-0.99) were less likely to use hospice, whereas older decedents (age 75-84 vs 65-74 years: OR, 1.39; 95% CI, 1.12-1.72; age ≥85 vs 65-74 years: OR, 1.39; 95% CI, 1.13-1.71), women (OR, 1.19; 95% CI, 1.05-1.35), and decedents with higher education (high school vs less than high school: OR, 1.17; 95% CI, 1.01-1.36; more than high school vs less than high school: OR, 1.32; 95% CI, 1.13-1.54), more severe cognitive impairment (OR, 1.51; 95% CI, 1.02-2.23), and more instrumental activities of daily living limitations (OR, 1.07; 95% CI, 1.01-1.12) were associated with higher hospice enrollment. A higher proportion of Black and Hispanic decedents with dementia used ED (645 of 809 [79.7%] and 274 of 357 [76.8%] vs 2753 of 3892 [70.7%]; P < .001) and inpatient services (625 of 809 [77.3%] and 275 of 357 [77.0%] vs 2630 of 3892 [67.5%]; P < .001) and incurred roughly 60% higher inpatient expenditures at the end of life compared with White decedents (estimated mean: Black, $23 279; 95% CI, $20 690-$25 868; Hispanic, $23 471; 95% CI, $19 532-$27 410 vs White, $14 609; 95% CI, $13 800-$15 418). A higher proportion of Black and Hispanic than White beneficiaries with dementia who were enrolled in hospice were subsequently admitted to the ED (56 of 309 [18.1%] and 22 of 153 [14.4%] vs 191 of 1967 [9.7%]; P < .001) or hospital (48 of 309 [15.5%] and 17 of 153 [11.1%] vs 119 of 1967 [6.0%]; P < .001) before death. The proportion of dementia beneficiaries completing advance care planning was lower among Black (146 of 704 [20.7%]) and Hispanic (66 of 308 [21.4%]) beneficiaries compared with White beneficiaries (1871 of 3274 [57.1%]). A higher proportion of Black and Hispanic decedents with dementia had written instructions choosing all care possible to prolong life (30 of 144 [20.8%] and 12 of 65 [18.4%] vs 72 of 1852 [3.9%]), whereas a higher proportion of White decedents preferred to limit care in certain situations (1708 of 1840 [92.8%] vs 114 of 141 [80.9%] and 51 of 64 [79.7%]), withhold treatments (1448 of 1799 [80.5%] vs 87 of 140 [62.1%] and 41 of 62 [66.1%]), and forgo extensive life-prolonging measures (1712 of 1838 [93.1%] vs 120 of 138 [87.0%] and 54 of 65 [83.1%]). CONCLUSIONS AND RELEVANCE The results of this cohort study highlight unique end-of-life care utilization and treatment preferences across racial and ethnic groups among patients with dementia. Medicare should consider alternative payment models to promote culturally competent end-of-life care and reduce low-value interventions and costs among the population with dementia.
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Affiliation(s)
- Pei-Jung Lin
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts
| | - Yingying Zhu
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts
| | - Natalia Olchanski
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts
| | - Joshua T. Cohen
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts
| | - Peter J. Neumann
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts
| | - Jessica D. Faul
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor
| | | | - Karen M. Freund
- Center for Health Equity Research, Department of Medicine, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts
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Grodstein F, Chang CH, Capuano AW, Power MC, Marquez DX, Barnes LL, Bennett DA, James BD, Bynum JPW. Identification of Dementia in Recent Medicare Claims Data, Compared With Rigorous Clinical Assessments. J Gerontol A Biol Sci Med Sci 2022; 77:1272-1278. [PMID: 34919685 PMCID: PMC9159666 DOI: 10.1093/gerona/glab377] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Medicare fee-for-service (FFS) claims data are increasingly leveraged for dementia research. Few studies address the validity of recent claim data to identify dementia, or carefully evaluate characteristics of those assigned the wrong diagnosis in claims. METHODS We used claims data from 2014 to 2018, linked to participants administered rigorous, annual dementia evaluations in 5 cohorts at the Rush Alzheimer's Disease Center. We compared prevalent dementia diagnosed through the 2016 cohort evaluation versus claims identification of dementia, applying the Bynum-standard algorithm. RESULTS Of 1 054 participants with Medicare Parts A and B FFS in a 3-year window surrounding their 2016 index date, 136 had prevalent dementia diagnosed during cohort evaluations; the claims algorithm yielded 217. Sensitivity of claims diagnosis was 79%, specificity 88%, positive predictive value 50%, negative predictive value 97%, and overall accuracy 87%. White participants were disproportionately represented among detected dementia cases (true positive) versus cases missed (false negative) by claims (90% vs 75%, respectively, p = .04). Dementia appeared more severe in detected than missed cases in claims (mean Mini-Mental State Exam = 15.4 vs 22.0, respectively, p < .001; 28% with no limitations in activities of daily living versus 45%, p = .046). By contrast, those with "over-diagnosis" of dementia in claims (false positive) had several worse health indicators than true negatives (eg, self-reported memory concerns = 51% vs 29%, respectively, p < .001; mild cognitive impairment in cohort evaluation = 72% vs 44%, p < .001; mean comorbidities = 7 vs 4, p < .001). CONCLUSIONS Recent Medicare claims perform reasonably well in identifying dementia; however, there are consistent differences in cases of dementia identified through claims than in rigorous cohort evaluations.
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Affiliation(s)
- Francine Grodstein
- Rush Alzheimer’s Disease Center, Chicago, Illinois, USA
- Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Chiang-Hua Chang
- Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, Michigan, USA
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Ana W Capuano
- Rush Alzheimer’s Disease Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Melinda C Power
- Department of Epidemiology, Milken Institute School of Public Health, George Washington University, Washington, District of Columbia, USA
| | - David X Marquez
- Rush Alzheimer’s Disease Center, Chicago, Illinois, USA
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Lisa L Barnes
- Rush Alzheimer’s Disease Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - David A Bennett
- Rush Alzheimer’s Disease Center, Chicago, Illinois, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Bryan D James
- Rush Alzheimer’s Disease Center, Chicago, Illinois, USA
- Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Julie P W Bynum
- Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, Michigan, USA
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
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Davis MA, Chang CH, Simonton S, Bynum JPW. Trends in US Medicare Decedents’ Diagnosis of Dementia From 2004 to 2017. JAMA HEALTH FORUM 2022; 3:e220346. [PMID: 35977316 PMCID: PMC8976239 DOI: 10.1001/jamahealthforum.2022.0346] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 02/09/2022] [Indexed: 12/22/2022] Open
Abstract
Question To what degree did the diagnosis of Alzheimer disease and related dementias (ADRD) change at the end of life between 2004 and 2017? Findings Among 3 515 329 Medicare fee-for-service decedents, the percentage who received an ADRD diagnosis within 2 years of death increased from 34.7% in 2004 to 47.2% in 2017. The likelihood of receiving an ADRD diagnosis particularly increased in the inpatient, hospice, and home health settings; individual characteristics and service use were stable over time, while the intensity of end-of-life care declined on most measures. Meaning Dying with an ADRD diagnosis has become more common among older US decedents, potentially owing to increased awareness and temporal changes in billing. Importance Alzheimer disease and related dementias (ADRD) have received considerable attention among clinicians, researchers, and policy makers in recent years. Despite increased awareness, few studies have documented temporal changes in the documentation of ADRD diagnoses despite its new importance for risk adjustment for health plans in Medicare. Objective To assess trends in frequency of ADRD diagnosis in the last 2 years of life from 2004 to 2017, as well as any associated changes in billing practices, characteristics of the population with diagnosed ADRD, and intensity of end-of-life care. Design, Setting, and Participants This is a serial cross-sectional study of older adult decedents (67 years or older) from 2004 to 2017 using a 20% sample of fee-for-service Medicare decedents. An ADRD diagnosis within the last 2 years of life was identified using diagnosis codes from inpatient, professional service, home health, or hospice claims, requiring the standard claims algorithm that required at least 1 claim and a more stringent algorithm that required at least 2 claims. Trends in ADRD diagnosis among decedents were used to lessen influence of new diagnostic technologies for early stage disease. Demographic characteristics, selected comorbidities, place of death, and health service use at the end-of-life were also examined. Data were analyzed from July 9, 2020, to May 3, 2021. Exposures Calendar year 2004 to 2017. Main Outcome and Measure An ADRD diagnosis within 2 years of death. Results Among the included 3 515 329 Medicare fee-for-service decedents, when adjusted for age and sex, the percentage of older decedents with an ADRD diagnosis increased from 34.7% in 2004 to 47.2% in 2017. The trend was attenuated (25.2% to 39.2%) using a stringent ADRD definition. There was an inflection in the curve from 2011 to 2013, the time at which additional diagnoses were added to Medicare claims and the National Alzheimer Care Act was enacted. The ADRD diagnosis frequency increased considerably in inpatient (49.0% to 67.3%), hospice (12.2% to 42.0%), and home health (10.1% to 28.7%) claims. However, individual characteristics, number of visits, and hospitalizations were similar across the study period, and the intensity of end-of-life care declined on most measures. Conclusions and Relevance In this cross-sectional study, nearly half of older Medicare decedents had a diagnosis of ADRD at the time of death. From 2004 to 2017, the percentage of older adult decedents who received an ADRD diagnosis increased substantially prior to announcement of the addition of ADRD to Medicare risk adjustment strategies.
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Affiliation(s)
- Matthew A. Davis
- Department of Systems, Populations and Leadership, University of Michigan School of Nursing, Ann Arbor
- Department of Learning Health Sciences, University of Michigan Medical School, Ann Arbor
- Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor
| | - Chiang-Hua Chang
- Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor
| | - Sharon Simonton
- Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor
| | - Julie P. W. Bynum
- Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor
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Chen Z, Ho M, Chau PH. Handgrip strength asymmetry is associated with the risk of neurodegenerative disorders among Chinese older adults. J Cachexia Sarcopenia Muscle 2022; 13:1013-1023. [PMID: 35178892 PMCID: PMC8977973 DOI: 10.1002/jcsm.12933] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/19/2021] [Accepted: 01/10/2022] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Neurodegenerative disorders, as the irreversible condition, have a long, silent preclinical period. Recognition of early physical signs of neurodegenerative disorders had important practical implications for identifying at-risk population. The aim of this study was to investigate whether handgrip strength (HGS) asymmetry was associated with the incidence of neurodegenerative disorders among Chinese older adults. METHODS This study used the data of participants aged 60 years and over from three waves (2011-2015) of China Health and Retirement Longitudinal Study. HGS asymmetry was measured with HGS ratio (maximal non-dominant HGS/maximal dominant HGS), with the value less than 0.9 or more than 1.1 considered as HGS asymmetry. Physician-diagnosed neurodegenerative disorders were identified by self-reported or proxy-reported information. Competing risk analysis was conducted to examine the association between HGS asymmetry and incident neurodegenerative disorders, with mortality treated as the competing event. RESULTS A total of 4925 participants were included in the analysis [mean (SD) age: 68.1(6.68); female: 49.7%]. Eight hundred and eighty-eight (18.0%) participants had low HGS and 2227 (45.2%) had HGS asymmetry. During the 4 years of follow-up, there were 156 cases of neurodegenerative disorders and 422 cases of mortality. The incidence of neurodegenerative disorders was 8.7 per 1000 person-years [95% confidence interval (CI): 7.4-10.2], and the incidence of mortality was 23.5 per 1000 person-years (95% CI: 21.4-25.9). Both the cause-specific model and the Fine-Gray subdistribution hazard model showed that participants with HGS asymmetry had increased hazard of neurodegenerative disorders [hazard ratio (HR) = 1.66, P = 0.002, 95% CI: 1.202-2.297; subdistribution hazard ratio (SHR) = 1.65, P = 0.002, 95% CI: 1.202-2.285]. Low HGS, but not HGS asymmetry, was related to the higher hazard of mortality (HR = 1.61, P < 0.001, 95% CI: 1.297-1.995; SHR = 1.58, P < 0.001, 95% CI: 1.286-1.951). CONCLUSIONS Handgrip strength asymmetry was associated with the future risk of neurodegenerative disorders among Chinese older adults. Public healthcare providers could consider examining HGS asymmetry along with the maximal HGS as a way to identify those at elevated risk of neurodegenerative disorders.
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Affiliation(s)
- Zi Chen
- School of Nursing, The University of Hong Kong, Hong Kong, China
| | - Mandy Ho
- School of Nursing, The University of Hong Kong, Hong Kong, China
| | - Pui Hing Chau
- School of Nursing, The University of Hong Kong, Hong Kong, China
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