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Garg S, Sweet N, Boderman B, Montes D, Walunas T, Ramsey-Goldman R, Khosroshahi A, Astor BC, Lim SS, Bartels CM. Multiplicative Impact of Adverse Social Determinants of Health on Outcomes in Lupus Nephritis: A Meta-analysis and Systematic Review. Arthritis Care Res (Hoboken) 2024. [PMID: 38693617 DOI: 10.1002/acr.25359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/15/2024] [Accepted: 04/19/2024] [Indexed: 05/03/2024]
Abstract
OBJECTIVE Social determinants of health (SDoH) likely contribute to outcome disparities in lupus nephritis (LN). Understanding the overall burden and contribution of each domain could guide future health equity-focused interventions to improve outcomes and reduce disparities in LN. Objectives of this meta-analysis were to 1) determine the association of overall SDoH and specific SDoH domains on LN outcomes and 2) develop a framework for the multidimensional impact of SDoH on LN outcomes. METHODS We performed a comprehensive search of studies measuring associations between SDoH and LN outcomes. We examined pooled odds of poor LN outcomes including death, end-stage kidney disease, or cardiovascular disease in patients with and without adverse SDoH. Additionally, we calculated the pooled odds ratios of outcomes by four SDoH domains: individual (eg, insurance), health care (eg, fragmented care), community (eg, neighborhood socioeconomic status), and health behaviors (eg, smoking). RESULTS Among 531 screened studies, 31 meeting inclusion criteria and 13 with raw data were included in meta-analysis. Pooled odds of poor outcomes were 1.47-fold higher in patients with any adverse SDoH. Patients with adverse SDoH in individual and health care domains had 1.64-fold and 1.77-fold higher odds of poor outcomes. We found a multiplicative impact of having two or more adverse SDoH on LN outcomes. Black patients with public insurance and fragmented care had 12-fold higher odds of poor LN outcomes. CONCLUSION Adverse SDoH is associated with poor LN outcomes. Having two or more adverse SDoH, specifically in different SDoH domains, had a multiplicative impact leading to worse LN outcomes, widening disparities.
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Affiliation(s)
- Shivani Garg
- University of Wisconsin School of Medicine and Public Health, Madison
| | - Nadia Sweet
- University of Wisconsin School of Medicine and Public Health, Madison
| | - Brianna Boderman
- University of Wisconsin School of Medicine and Public Health, Madison
| | | | | | | | | | - Brad C Astor
- University of Wisconsin School of Medicine and Public Health, Madison
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Sandoval-Heglund D, Roberts E, Park J, Dall'Era M, Lanata C, Barbour KE, Greenlund KJ, Gordon C, Katz PP, Yazdany J. Economic insecurities and patient-reported outcomes in patients with systemic lupus erythematosus in the USA: a cross-sectional analysis of data from the California Lupus Epidemiology Study. THE LANCET. RHEUMATOLOGY 2024; 6:e105-e114. [PMID: 38267097 PMCID: PMC10964913 DOI: 10.1016/s2665-9913(23)00296-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 10/20/2023] [Accepted: 10/24/2023] [Indexed: 01/26/2024]
Abstract
BACKGROUND Social determinants of health are consistently associated with systemic lupus erythematosus (SLE) outcomes. However, social determinants of health are typically measured with conventional socioeconomic status factors such as income or education. We assessed the association of economic insecurities (ie, food, housing, health care, and financial insecurity) with patient-reported outcomes in a cohort of patients with SLE. METHODS In this cross-sectional analysis, data were derived from the California Lupus Epidemiology Study based in the San Francisco Bay Area, CA, USA. Participants were recruited between Feb 25, 2015, and Jan 10, 2018, from rheumatology clinics. Inclusion criteria were Bay Area residency; oral fluency in English, Spanish, Cantonese, or Mandarin; 18 years or older; ability to provide informed consent; and a physician confirmed SLE diagnosis. Food, housing, health care, and financial economic insecurities were assessed by validated screening tools. Patient-reported outcomes were obtained using PROMIS, Quality of Life in Neurological Disorders (known as Neuro-QoL) Cognitive Function short form, Patient Health Questionnaire (PHQ)-8, and General Anxiety Disorder (GAD)-7 instruments. Poverty was defined as household income of 125% or less of the federal poverty limit. Lower education was defined as less than college-graduate education. The association of economic insecurities with patient-reported outcomes was assessed by multivariable linear regression models adjusting for demographics, SLE disease characteristics, and comorbidities. We tested for interactions of insecurities with poverty and education. FINDINGS The final cohort included 252 participants. Mean age was 49·7 (SD 13·4) years, 228 (90%) of 252 were women and 24 (10%) were men. 80 (32%) individuals self-identified as Asian, 26 (10%) as Black, 101 (40%) as White, eight (3%) as mixed race, and 37 (15%) as other race; 59 (23%) self-identified as Hispanic. 135 (54%) individuals had at least one insecurity. Insecurities were highly prevalent, and more common in those with poverty and lower education. Adjusted multivariate analyses revealed that participants with any insecurity had significantly worse scores across all measured patient-reported outcomes. For physical function, no insecurity had an adjusted mean score of 48·9 (95% CI 47·5-50·3) and any insecurity had 45·7 (44·3-47·0; p=0·0017). For pain interference, no insecurity was 52·0 (50·5-53·5) and any insecurity was 54·4 (53·0-55·8; p=0·031). For fatigue, no insecurity was 50·5 (48·8-52·3) and any insecurity was 54·9 (53·3-56·5; p=0·0005). For sleep disturbance, no insecurity was 49·9 (48·3-51·6) and any insecurity was 52·9 (51·4-54·5; p=0·012). For cognitive function, no insecurity was 49·3 (47·7-50·9) and any insecurity was 45·6 (44·1-47·0; p=0·0011). For PHQ-8, no insecurity was 4·4 (3·6-5·1) and any insecurity was 6·1 (5·4-6·8; p=0·0013). For GAD-7, no insecurity was 3·3 (2·6-4·1) and any insecurity was 5·2 (4·5-5·9; p=0·0008). Individuals with more insecurities had worse patient-reported outcomes. There were no statistically significant interactions between insecurities and poverty or education. INTERPRETATION Having any economic insecurity was associated with worse outcomes for people with SLE regardless of poverty or education. The findings of this study provide insight into the relationship between economic insecurities and SLE outcomes and underscore the need to assess whether interventions that directly address these insecurities can reduce health disparities in SLE. FUNDING US Centers for Disease Control, Rheumatology Research Foundation, and National Institute of Arthritis and Musculoskeletal and Skin Diseases.
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Affiliation(s)
| | - Eric Roberts
- University of California San Francisco, Department of Medicine, Division of Rheumatology, San Francisco, CA, USA
| | - Joonsuk Park
- University of California San Francisco, Department of Medicine, Division of Rheumatology, San Francisco, CA, USA
| | - Maria Dall'Era
- University of California San Francisco, Department of Medicine, Division of Rheumatology, San Francisco, CA, USA
| | - Cristina Lanata
- National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Kamil E Barbour
- Centers for Disease Control and Prevention, Division of Population Health, Atlanta, GA, USA
| | - Kurt J Greenlund
- Centers for Disease Control and Prevention, Division of Population Health, Atlanta, GA, USA
| | - Caroline Gordon
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Patricia P Katz
- University of California San Francisco, Department of Medicine, Division of Rheumatology, San Francisco, CA, USA; University of California San Francisco, Institute for Health Policy Studies, San Francisco, CA, USA.
| | - Jinoos Yazdany
- University of California San Francisco, Department of Medicine, Division of Rheumatology, San Francisco, CA, USA
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Valle A, Feldman CH. Association of economic insecurities with patient-reported outcomes in systemic lupus erythematosus. THE LANCET. RHEUMATOLOGY 2024; 6:e68-e70. [PMID: 38267104 DOI: 10.1016/s2665-9913(23)00323-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 12/04/2023] [Indexed: 01/26/2024]
Affiliation(s)
- Ana Valle
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Candace H Feldman
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA.
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Martz CD, Webb-Detiege T, Danila MI, Chae DH. Sociodemographic profiles and organ damage accural in the Black Women's Experience Living with Lupus study. Lupus 2024; 33:17-25. [PMID: 38048450 PMCID: PMC10777614 DOI: 10.1177/09612033231218923] [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: 06/28/2023] [Accepted: 11/18/2023] [Indexed: 12/06/2023]
Abstract
OBJECTIVE Black/African American women with systemic lupus erythematosus (SLE) experience greater organ damage and at younger ages than white women. The objective of this study was to advance research on SLE inequities by identifying sociodemographic risk profiles associated with organ damage accrual specifically among Black/African American women. METHODS Latent profile analysis was conducted among 438 Black/African American women with SLE living in Atlanta, GA and enrolled in the Black Women's Experiences Living with Lupus (BeWELL) Study (May 2015 to April 2017). Proportional hazard and Poisson regression models examined prospective associations between sociodemographic profiles and the timing and degree of organ damage accrual over 2 years. RESULTS Four profiles emerged: (1) "Younger/Lower SES with Uncontrolled SLE" (44.8%), (2) "Older/Lower SES with Uncontrolled SLE" (23.3%), (3) "Mid-SES with Controlled SLE" (19.6%), and (4) "Higher SES with Controlled SLE" (11.2%). Approximately 42% of participants experienced new organ damage during the follow-up period. Proportional hazard models indicated that "Older/Lower SES with Uncontrolled SLE" participants were at greatest risk of new organ damage (HR = 2.41; 95% CI = 1.39, 4.19), followed by "Younger/Lower SES with Uncontrolled SLE" participants (HR = 1.56; 95% CI = 0.92, 2.67), compared to those in the "Higher SES with Controlled SLE" profile. Poisson regression models revealed that these two groups also exhibited greater organ damage accrual (b = 0.98, SE = 0.24, 95% CI = 0.52, 1.44 and b = 0.72, SE = 0.23, 95% CI = 0.27, 1.17, respectively). CONCLUSIONS Black/African American women with fewer socioeconomic resources and uncontrolled SLE are at greatest risk for increasing disease severity over time. Social inequities likely contribute to racial inequities in SLE progression.
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Affiliation(s)
- Connor D Martz
- Population Research Center, The University of Texas at Austin, Austin, TX, USA
- Department of Social, Behavioral, and Population Sciences, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
| | - Tamika Webb-Detiege
- Department of Rheumatology, Ochsner Health, New Orleans, LA, USA
- The University of Queensland Medical School, Ochsner Clinical School, New Orleans, LA, USA
| | - Maria I Danila
- Division of Clinical Immunology and Rheumatology, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, USA
- Geriatric Research Education and Clinical Center, Birmingham VA Medical Center, Birmingham, AL, USA
| | - David H Chae
- Department of Social, Behavioral, and Population Sciences, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
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Ulysse SN, Chandler MT, Santacroce L, Cai T, Liao KP, Feldman CH. Social Determinants of Health Documentation Among Individuals With Rheumatic and Musculoskeletal Conditions in an Integrated Care Management Program. Arthritis Care Res (Hoboken) 2023; 75:2529-2536. [PMID: 37331999 PMCID: PMC10725994 DOI: 10.1002/acr.25174] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 05/18/2023] [Accepted: 06/13/2023] [Indexed: 06/20/2023]
Abstract
OBJECTIVE Social determinants of health (SDoH), such as poverty, are associated with increased burden and severity of rheumatic and musculoskeletal diseases. This study was undertaken to study the prevalence and documentation of SDoH-related needs in electronic health records (EHRs) of individuals with these conditions. METHODS We randomly selected individuals with ≥1 International Classification of Diseases, Ninth/Tenth Revision (ICD-9/10) code for a rheumatic/musculoskeletal condition enrolled in a multihospital integrated care management program that coordinates care for medically and/or psychosocially complex individuals. We assessed SDoH documentation using terms for financial needs, food insecurity, housing instability, transportation, and medication access according to EHR note review and ICD-10 SDoH billing codes (Z codes). We used multivariable logistic regression to examine associations between demographic factors (age, gender, race, ethnicity, insurance) and ≥1 (versus 0) SDoH need as the odds ratio (OR) with 95% confidence interval (95% CI). RESULTS Among 558 individuals with rheumatic/musculoskeletal conditions, 249 (45%) had ≥1 SDoH need documented in EHR notes by social workers, care coordinators, nurses, and physicians. A total of 171 individuals (31%) had financial insecurity, 105 (19%) had transportation needs, 94 (17%) had food insecurity; 5% had ≥1 related Z code. In the multivariable model, the odds of having ≥1 SDoH need was 2.45 times higher (95% CI 1.17-5.11) for Black versus White individuals and significantly higher for Medicaid or Medicare beneficiaries versus commercially insured individuals. CONCLUSION Nearly half of this sample of complex care management patients with rheumatic/musculoskeletal conditions had SDoH documented within EHR notes; financial insecurity was the most prevalent. Only 5% of patients had representative billing codes suggesting that systematic strategies to extract SDoH from notes are needed.
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Affiliation(s)
- Sciaska N. Ulysse
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Mia T. Chandler
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
- Rheumatology Program, Division of Immunology, Boston Children’s Hospital, Boston, MA
| | - Leah Santacroce
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Tianrun Cai
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Katherine P. Liao
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Candace H. Feldman
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
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Parodis I, Lanata C, Nikolopoulos D, Blazer A, Yazdany J. Reframing health disparities in SLE: A critical reassessment of racial and ethnic differences in lupus disease outcomes. Best Pract Res Clin Rheumatol 2023; 37:101894. [PMID: 38057256 DOI: 10.1016/j.berh.2023.101894] [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: 10/09/2023] [Accepted: 10/27/2023] [Indexed: 12/08/2023]
Abstract
Health disparities in the prevalence and outcomes of systemic lupus erythematosus (SLE) are well documented across racial and ethnic groups. Similar to other chronic diseases, differences in disease severity among individuals with SLE are likely influenced by both genetic predisposition and multiple social determinants of health. However, research in SLE that jointly examines the genetic and environmental contributions to the disease course is limited, resulting in an incomplete understanding of the biologic and social mechanisms that underly health disparities. While research on health disparities can reveal inequalities and inform resource allocation to improve outcomes, research that relies on racial and ethnic categories to describe diverse groups of people can pose challenges. Additionally, results from research comparing outcomes across socially constructed groups without considering other contributing factors can be misleading. We herein comprehensively examine existing literature on health disparities in SLE, including both clinical studies that examine the relationship between self-reported race and ethnicity and disease outcomes and studies that explore the relationships between genomics and lupus outcomes. Having surveyed this body of research, we propose a framework for research examining health disparities in SLE, including ways to mitigate bias in future studies.
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Affiliation(s)
- Ioannis Parodis
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden; Department of Gastroenterology, Dermatology and Rheumatology, Karolinska University Hospital, Stockholm, Sweden; Department of Rheumatology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
| | - Cristina Lanata
- Genomics of Autoimmune Rheumatic Disease Section, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Dionysis Nikolopoulos
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden; Department of Gastroenterology, Dermatology and Rheumatology, Karolinska University Hospital, Stockholm, Sweden
| | - Ashira Blazer
- Division of Rheumatology, Department of Medicine, Hospital for Special, Surgery, New York, NY, USA
| | - Jinoos Yazdany
- Division of Rheumatology, University of California, San Francisco, USA
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Aguirre A, DeQuattro K, Shiboski S, Katz P, Greenlund KJ, Barbour KE, Gordon C, Lanata C, Criswell LA, Dall'Era M, Yazdany J. Medication Cost Concerns and Disparities in Patient-Reported Outcomes Among a Multiethnic Cohort of Patients With Systemic Lupus Erythematosus. J Rheumatol 2023; 50:1302-1309. [PMID: 37321640 PMCID: PMC10543599 DOI: 10.3899/jrheum.2023-0060] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2023] [Indexed: 06/17/2023]
Abstract
OBJECTIVE Concerns about the affordability of medications are common in systemic lupus erythematosus (SLE), but the relationship between medication cost concerns and health outcomes is poorly understood. We assessed the association of self-reported medication cost concerns and patient-reported outcomes (PROs) in a multiethnic SLE cohort. METHODS The California Lupus Epidemiology Study is a cohort of individuals with physician-confirmed SLE. Medication cost concerns were defined as having difficulties affording SLE medications, skipping doses, delaying refills, requesting lower-cost alternatives, purchasing medications outside the United States, or applying for patient assistance programs. Linear regression and mixed effects models assessed the cross-sectional and longitudinal association of medication cost concerns and PROs, respectively, adjusting for age, sex, race and ethnicity, income, principal insurance, immunomodulatory medications, and organ damage. RESULTS Of 334 participants, medication cost concerns were reported by 91 (27%). Medication cost concerns were associated with worse Systemic Lupus Activity Questionnaire (SLAQ; beta coefficient [β] 5.9, 95% CI 4.3-7.6; P < 0.001), 8-item Patient Health Questionnaire depression scale (PHQ-8; β 2.7, 95% CI 1.4-4.0; P < 0.001), and Patient-Reported Outcomes Measurement Information System (PROMIS; β for physical function -4.6, 95% CI -6.7 to -2.4; P < 0.001) scores after adjusting for covariates. Medication cost concerns were not associated with significant changes in PROs over 2-year follow-up. CONCLUSION More than a quarter of participants reported at least 1 medication cost concern, which was associated with worse PROs. Our results reveal a potentially modifiable risk factor for poor outcomes rooted in the unaffordability of SLE care.
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Affiliation(s)
- Alfredo Aguirre
- A. Aguirre, MD, M. Dall'Era, MD, J. Yazdany, MD, MPH, Division of Rheumatology, University of California, San Francisco, California;
| | - Kimberly DeQuattro
- K. DeQuattro, MD, Division of Rheumatology, University of Pennsylvania, Pennsylvania
| | - Stephen Shiboski
- S. Shiboski, PhD, Department of Epidemiology & Biostatistics, University of California, San Francisco, California
| | - Patricia Katz
- P. Katz, PhD, Department of Medicine, University of California, San Francisco, California
| | - Kurt J Greenlund
- K.J. Greenlund, PhD, Epidemiology and Surveillance Branch, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Kamil E Barbour
- K.E. Barbour, PhD, MPH, Lupus and Interstitial Cystitis Programs, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Caroline Gordon
- C. Gordon, MD, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, Alabama
| | - Cristina Lanata
- C. Lanata, MD, Genomics of Autoimmune Rheumatic Disease Section, National Human Genome Research Section, National Institutes of Health, Bethesda, Maryland
| | - Lindsey A Criswell
- L.A. Criswell, MD, MPH, DSc, Genomics of Autoimmune Rheumatic Disease Section, National Human Genome Research Section, National Institutes of Health, Bethesda, Maryland USA
| | - Maria Dall'Era
- A. Aguirre, MD, M. Dall'Era, MD, J. Yazdany, MD, MPH, Division of Rheumatology, University of California, San Francisco, California
| | - Jinoos Yazdany
- A. Aguirre, MD, M. Dall'Era, MD, J. Yazdany, MD, MPH, Division of Rheumatology, University of California, San Francisco, California
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Soulsby WD, Lawson E, Okumura M, Pantell MS. Socioeconomic Factors Are Associated With Severity of Hospitalization in Pediatric Lupus: An Analysis of the 2016 Kids' Inpatient Database. Arthritis Care Res (Hoboken) 2023; 75:2073-2081. [PMID: 36971263 DOI: 10.1002/acr.25121] [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: 09/30/2022] [Revised: 02/13/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023]
Abstract
OBJECTIVE Health disparities in adult lupus, including higher disease severity and activity among those in poverty, have been identified. Similar associations in pediatric lupus have not been clearly established. This study was undertaken to investigate the relationship of income level and other socioeconomic factors with length of stay (LOS) in the hospital and severe lupus features using the 2016 Kids' Inpatient Database (KID). METHODS Lupus hospitalizations were identified in children ages 2-20 years in the 2016 KID using International Statistical Classification of Diseases and Related Health Problems, Tenth Revision (ICD-10) codes (M32). Univariate and multivariate negative binomial regression analyses were used to analyze the association of income level, race and ethnicity, and insurance status with LOS in the hospital. Univariate and multivariate logistic regression analyses were used to analyze the association of the same predictors with the presence of severe lupus features, defined using ICD-10 codes associated with lupus sequelae (e.g., lupus nephritis). RESULTS A total of 3,367 unweighted (4,650 weighted) lupus hospitalizations were identified. Income level was found to be a statistically significant predictor of increased LOS in the hospital for those in the lowest income quartile (adjusted incidence rate ratio 1.12 [95% confidence interval (95% CI) 1.02-1.23]). Black race, "other" race, and public insurance were also associated with severe lupus features (adjusted odds ratio [ORadj ] 1.51 [95% CI 1.11-2.06]; ORadj 1.61 [95% CI 1.01-2.55]; and ORadj 1.51 [95% CI 1.17-2.55], respectively). CONCLUSION Using a nationally representative data set, income level was found to be a statistically significant predictor of LOS in the hospital among those with the lowest reported income, highlighting a potential target population for intervention. Additionally, Black race and public insurance were associated with severe lupus features.
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Buie J, McMillan E, Kirby J, Cardenas LA, Eftekhari S, Feldman CH, Gawuga C, Knight AM, Lim SS, McCalla S, McClamb D, Polk B, Williams E, Yelin E, Shah S, Costenbader KH. Disparities in Lupus and the Role of Social Determinants of Health: Current State of Knowledge and Directions for Future Research. ACR Open Rheumatol 2023; 5:454-464. [PMID: 37531095 PMCID: PMC10502817 DOI: 10.1002/acr2.11590] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 06/28/2023] [Accepted: 07/01/2023] [Indexed: 08/03/2023] Open
Abstract
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease. The complex relationships between race and ethnicity and social determinants of health (SDOH) in influencing SLE and its course are increasingly appreciated. Multiple SDOH have been strongly associated with lupus incidence and outcomes and contribute to health disparities in lupus. Measures of socioeconomic status, including economic instability, poverty, unemployment, and food insecurity, as well as features of the neighborhood and built environment, including lack of safe and affordable housing, crime, stress, racial segregation, and discrimination, are associated with race and ethnicity in the US and are risk factors for poor outcomes in lupus. In this scientific statement, we aimed to summarize current evidence on the role of SDOH in relation to racial and ethnic disparities in SLE and SLE outcomes, primarily as experienced in the U.S. Lupus Foundation of America's Health Disparities Advisory Panel, comprising 10 health disparity experts, including academic researchers and patients, who met 12 times over the course of 18 months in assembling and reviewing the data for this study. Sources included articles published from 2011 to 2023 in PubMed, Centers for Disease Control and Prevention data, and bibliographies and recommendations. Search terms included lupus, race, ethnicity, and SDOH domains. Data were extracted and synthesized into this scientific statement. Poorer neighborhoods correlate with increased damage, reduced care, and stress-induced lupus flares. Large disparities in health care affordability, accessibility, and acceptability exist in the US, varying by region, insurance status, and racial and minority groups. Preliminary interventions targeted social support, depression, and shared-decision-making, but more research and intervention implementation and evaluation are needed. Disparities in lupus across racial and ethnic groups in the US are driven by SDOH, some of which are more easily remediable than others. A multidimensional and multidisciplinary approach involving various stakeholder groups is needed to address these complex challenges, address these diminish disparities, and improve outcomes.
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Affiliation(s)
- Joy Buie
- Lupus Foundation of AmericanWashingtonDC
| | | | | | | | - Sanaz Eftekhari
- Asthma and Allergy Foundation of AmericaGreater LandoverMaryland
| | - Candace H. Feldman
- Harvard Medical School and Brigham and Women's HospitalBostonMassachusetts
| | - Cyrena Gawuga
- Preparedness and Treatment Equity CoalitionNew York CityNew York
| | - Andrea M. Knight
- Hospital for Sick Children and University of TorontoTorontoOntarioCanada
| | - S. Sam Lim
- Emory University and Grady Health SystemAtlantaGeorgia
| | | | | | - Barbara Polk
- John F. Kennedy Center for the Performing Arts and Amplify People AdvisorsWashingtonDC
| | | | - Ed Yelin
- University of California San Francisco
| | - Sanoja Shah
- Charles River AssociatesSan FranciscoCalifornia
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Reid MR, Danguecan AN, Colindres I, Witherspoon D, Rubinstein TB, Drenkard C, Knight AM, Cunningham NR. An ecological approach to understanding and addressing health inequities of systemic lupus erythematosus. Lupus 2023; 32:612-624. [PMID: 36922154 DOI: 10.1177/09612033231164637] [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: 03/17/2023]
Abstract
Systemic Lupus Erythematosus (SLE) is a complex chronic autoimmune disease disproportionally afflicting women and, in particular, American Indian/Alaska Native, Black, and Hispanic women. These groups of women have significantly worse SLE-related health outcomes which are partially attributable to their exposure to marginalizing and interconnecting social issues like racism, sexism, economic inequality, and more. Although these groups of women have higher rates of SLE and though it is well known that they are at risk of exposure to marginalizing social phenomena, relatively little SLE literature explicitly links and addresses the relationship between marginalizing social issues and poor SLE-health outcomes among these women. Therefore, we developed a community-engaged partnership with two childhood-SLE diagnosed women of color to identify their perspectives on which systemic issues impacted on their SLE health-related outcomes. Afterward, we used Cochrane guidelines to conduct a rapid review associated with these identified issues and original SLE research. Then, we adapted an ecological model to illustrate the connection between systems issues and SLE health outcomes. Finally, we provided recommendations for ways to research and clinically mitigate SLE health inequities.
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Affiliation(s)
- Mallet R Reid
- Department of Family Medicine, College of Human Medicine, 3078Michigan State University, Grand Rapids, MI, USA
| | - Ashley N Danguecan
- Division of Rheumatology, 7979The Hospital for Sick Children, Toronto, ON, Canada
| | | | | | - Tamar B Rubinstein
- Albert Einstein College of Medicine, Children's Hospital at Montefiore, New York, NY, USA
| | | | - Andrea M Knight
- Division of Rheumatology, 7979The Hospital for Sick Children, Toronto, ON, Canada
| | - Natoshia R Cunningham
- Department of Family Medicine, College of Human Medicine, 3078Michigan State University, Grand Rapids, MI, USA
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Aguirre A, Izadi Z, Trupin L, Barbour KE, Greenlund KJ, Katz P, Lanata C, Criswell L, Dall’Era M, Yazdany J. Race, Ethnicity, and Disparities in the Risk of End-Organ Lupus Manifestations Following a Systemic Lupus Erythematosus Diagnosis in a Multiethnic Cohort. Arthritis Care Res (Hoboken) 2023; 75:34-43. [PMID: 35452566 PMCID: PMC9587136 DOI: 10.1002/acr.24892] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/22/2022] [Accepted: 04/07/2022] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Data on the onset of lupus manifestations across multiple organ domains and in diverse populations are limited. The objective was to analyze racial and ethnic differences in the risk of end-organ lupus manifestations following systemic lupus erythematosus (SLE) diagnosis in a multiethnic cohort. METHODS The California Lupus Epidemiology Study (CLUES) is a longitudinal study of SLE. Data on major end-organ lupus manifestations were collected and categorized by organ system: renal, hematologic, neurologic, cardiovascular, and pulmonary. Multiorgan disease was defined as manifestations in ≥2 of these distinct organ systems. Kaplan-Meier curves assessed end-organ disease-free survival, and Cox proportional hazards regression estimated the rate of end-organ disease following SLE diagnosis, adjusting for age at diagnosis, sex, and self-reported race and ethnicity (White, Hispanic, Black, and Asian). RESULTS Of 326 participants, 89% were female; the mean age was 45 years. Self-reported race and ethnicity were 30% White, 23% Hispanic, 11% Black, and 36% Asian. Multiorgan disease occurred in 29%. Compared to White participants, Hispanic and Asian participants had higher rates, respectively, of renal (hazard ratio [HR] 2.9 [95% confidence interval (95% CI) 1.8-4.7], HR 2.9 [95% CI 1.9-4.6]); hematologic (HR 2.7 [95% CI 1.3-5.7], HR 2.1 [95% CI 1.0-4.2]); and multiorgan disease (HR 3.3 [95% CI 1.8-5.9], HR 2.5 [95% CI 1.4-4.4]) following SLE diagnosis. CONCLUSION We found heightened risks of developing renal, hematologic, and multiorgan disease following SLE diagnosis among Hispanic and Asian patients with SLE, as well as a high burden of multiorgan disease among CLUES participants.
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Affiliation(s)
- Alfredo Aguirre
- University of California, San Francisco, Division of Rheumatology, Department of Medicine
| | - Zara Izadi
- University of California, San Francisco, Division of Rheumatology, Department of Medicine
| | - Laura Trupin
- University of California, San Francisco, Division of Rheumatology, Department of Medicine
| | | | | | - Patti Katz
- University of California, San Francisco, Division of Rheumatology, Department of Medicine
| | - Cristina Lanata
- National Human Genome Research Institute, National Institutes of Health
| | - Lindsey Criswell
- National Human Genome Research Institute, National Institutes of Health
| | - Maria Dall’Era
- University of California, San Francisco, Division of Rheumatology, Department of Medicine
| | - Jinoos Yazdany
- University of California, San Francisco, Division of Rheumatology, Department of Medicine
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12
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Himed S, Gilkey T, Trinidad J, Shipp D, Kaffenberger B, Korman AM. Impact of social determinants of health on hospital patient outcomes in cutaneous lupus erythematosus. Int J Dermatol 2023; 62:e51-e53. [PMID: 34982837 DOI: 10.1111/ijd.16029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 11/24/2021] [Indexed: 01/20/2023]
Affiliation(s)
- Sonia Himed
- University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Ty Gilkey
- Division of Dermatology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - John Trinidad
- Division of Dermatology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Desmond Shipp
- Division of Dermatology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Benjamin Kaffenberger
- Division of Dermatology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Abraham M Korman
- Division of Dermatology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
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13
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Santacroce L, Dellaripa PF, Costenbader KH, Collins J, Feldman CH. Association of Area-Level Heat and Social Vulnerability With Recurrent Hospitalizations Among Individuals With Rheumatic Conditions. Arthritis Care Res (Hoboken) 2023; 75:22-33. [PMID: 36071609 PMCID: PMC9947700 DOI: 10.1002/acr.25015] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 08/16/2022] [Accepted: 09/01/2022] [Indexed: 01/14/2023]
Abstract
OBJECTIVE Climate and social vulnerability contribute to morbidity and health care utilization. We examined associations between the neighborhood Social Vulnerability Index (SVI) and the Heat Vulnerability Index (HVI) and recurrent hospitalizations among individuals with rheumatic conditions. METHODS Using a Massachusetts multihospital centralized clinical data repository, we identified individuals ≥18 years of age with a rheumatic condition who received rheumatology care within 3 years of April 2021. We defined the index date as 2 years before the last encounter and the baseline period as 1 year pre-index date. Addresses were geocoded and linked by census tract to the SVI and the HVI. We used multilevel, multinomial logistic regression to examine the odds of 1-3 and ≥4 hospitalizations (reference = 0) over 2 years post index date by vulnerability index, adjusting for age, gender, race/ethnicity, insurance, and comorbidities. RESULTS Among 14,401 individuals with rheumatic conditions, the mean ± age was 61.9 ± 15.7 years, 70% were female, 79% White, 7% Black, and 2% Hispanic. There were 8,251 hospitalizations; 11,649 individuals (81%) had 0 hospitalizations, 2,063 (14%) had 1-3, and 689 (5%) had ≥4. Adjusting for individual-level factors, individuals living in the highest versus lowest SVI areas had 1.84 times higher odds (95% confidence interval [95% CI] 1.43-2.36) of ≥4 hospitalizations. Individuals living in the highest versus lowest HVI areas had 1.64 times greater odds (95% CI 1.17-2.31) of ≥4 hospitalizations. CONCLUSION Individuals with rheumatic conditions living in areas with high versus low social and heat vulnerability had significantly greater odds of recurrent hospitalizations. Studies are needed to determine modifiable factors to mitigate risks.
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Affiliation(s)
- Leah Santacroce
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women’s Hospital, Boston, MA
| | - Paul F. Dellaripa
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women’s Hospital, Boston, MA
| | - Karen H. Costenbader
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women’s Hospital, Boston, MA
| | - Jamie Collins
- OrACORe, Department of Orthopedic Surgery, Brigham and Women’s Hospital, Boston, MA
| | - Candace H. Feldman
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women’s Hospital, Boston, MA
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14
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Leung J, McMorrow L, BeLue R, Baker EA. Structural and health system determinants of health outcomes in systemic lupus erythematosus: Understanding the mechanisms underlying health disparities. Front Public Health 2022; 10:980731. [PMID: 36249243 PMCID: PMC9563342 DOI: 10.3389/fpubh.2022.980731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 09/12/2022] [Indexed: 01/25/2023] Open
Abstract
Chronic diseases are increasingly responsible for the burden of health outcomes across the world. However, there is also increasing recognition that patterns of chronic disease outcomes (e.g., mortality, quality of life, etc.) have inequities across race, gender, and socioeconomic groups that cannot be solely attributed to these determinants. There is a need for an organizing framework which centers fundamental causes of health disparities that may better guide future work in centering these mechanisms and moving beyond acknowledgment of health disparities. In this paper, we synthesize several concepts from health disparities literature into a conceptual framework for understanding the interplay of patients' lived experiences, the health care system and structural determinants. Our framework suggests that (1) structural factors influence the health care system, the patient, the health care provider, and the provider-patient relationship through process of subordination and (2) that structurally competent actions are critical to reducing health inequities. The addition of subordination to theoretical frameworks involving health equity and social determinants of health, along with engagement with concepts of structural competency suggest several systems level changes to improve health outcomes.
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Affiliation(s)
- Jerik Leung
- Department of Behavioral, Social, and Health Education Sciences, Rollins School of Public Health, Emory University, Atlanta, GA, United States,*Correspondence: Jerik Leung
| | - Lily McMorrow
- Division of Rheumatology, Department of Medicine, Washington University School of Medicine, Saint Louis, MO, United States
| | - Rhonda BeLue
- Department of Public Health, University of Texas at San Antonio, San Antonio, TX, United States
| | - Elizabeth A. Baker
- Department of Behavioral Science and Health Education, College for Public Health and Social Justice, Saint Louis University, Saint Louis, MO, United States
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15
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Suzon B, Louis-Sidney F, Aglaé C, Henry K, Bagoée C, Wolff S, Moinet F, Emal-Aglaé V, Polomat K, DeBandt M, Deligny C, Couturier A. Good Long-Term Prognosis of Lupus Nephritis in the High-Income Afro-Caribbean Population of Martinique with Free Access to Healthcare. J Clin Med 2022; 11:jcm11164860. [PMID: 36013099 PMCID: PMC9410092 DOI: 10.3390/jcm11164860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/12/2022] [Accepted: 05/18/2022] [Indexed: 11/16/2022] Open
Abstract
Lupus nephritis (LN) has been described as having worse survival and renal outcomes in African-descent patients than Caucasians. We aimed to provide long-term population-based data in an Afro-descendant cohort of LN with high income and easy and free access to specialized healthcare. Study design: We performed a retrospective population-based analysis using data from 2002–2015 of 1140 renal biopsies at the University Hospital of Martinique (French West Indies). All systemic lupus erythematosus patients with a diagnosis of LN followed for at least 12 months in Martinique or who died during this period were included. Results: A total of 89 patients were included, of whom 68 (76.4%) had proliferative (class III or IV), 17 (19.1%) had membranous (class V), and 4 (4.5%) had class I or II lupus nephritis according to the ISN/RPS classification. At a mean follow-up of 118.3 months, 51.7% of patients were still in remission. The rates of end-stage renal disease were 13.5%, 19.1%, and 21.3% at 10, 15, and 20 years of follow-up, respectively, and mortality rates were 4.5%, 5.6%, and 7.9% at 10, 15, and 20 years of follow-up, respectively. Conclusions: The good survival of our Afro-descendant LN patients, similar to that observed in Caucasians, shades the burden of ethnicity but rather emphasizes and reinforces the importance of optimizing all modifiable factors associated with poor outcome, especially socioeconomics.
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Affiliation(s)
- Benoit Suzon
- Department of Internal Medicine, Martinique University Hospital, CEDEX CS, 90632 Fort-de-France, Martinique, France
- Correspondence:
| | - Fabienne Louis-Sidney
- Department of Rheumatology, Martinique University Hospital, CEDEX CS, 90632 Fort-de-France, Martinique, France
| | - Cédric Aglaé
- Department of Nephrology, Martinique University Hospital, CEDEX CS, 90632 Fort-de-France, Martinique, France
| | - Kim Henry
- Department of Internal Medicine, Martinique University Hospital, CEDEX CS, 90632 Fort-de-France, Martinique, France
| | - Cécile Bagoée
- Department of Internal Medicine, Martinique University Hospital, CEDEX CS, 90632 Fort-de-France, Martinique, France
| | - Sophie Wolff
- Department of Internal Medicine, Martinique University Hospital, CEDEX CS, 90632 Fort-de-France, Martinique, France
| | - Florence Moinet
- Department of Internal Medicine, Martinique University Hospital, CEDEX CS, 90632 Fort-de-France, Martinique, France
| | - Violaine Emal-Aglaé
- Department of Nephrology, Martinique University Hospital, CEDEX CS, 90632 Fort-de-France, Martinique, France
| | - Katlyne Polomat
- Department of Internal Medicine, Martinique University Hospital, CEDEX CS, 90632 Fort-de-France, Martinique, France
| | - Michel DeBandt
- Department of Rheumatology, Martinique University Hospital, CEDEX CS, 90632 Fort-de-France, Martinique, France
| | - Christophe Deligny
- Department of Internal Medicine, Martinique University Hospital, CEDEX CS, 90632 Fort-de-France, Martinique, France
| | - Aymeric Couturier
- Department of Internal Medicine, Martinique University Hospital, CEDEX CS, 90632 Fort-de-France, Martinique, France
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16
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Abstract
PURPOSE OF REVIEW We summarize the recent literature published in the last 2 years on healthcare disparities observed in the delivery of rheumatology care by telemedicine. We highlight recent research dissecting the underpinnings of healthcare disparities and identify potentially modifiable contributing factors. RECENT FINDINGS The COVID-19 pandemic has had major impacts on care delivery and has led to a pronounced increase in telemedicine use in rheumatology practice. Telemedicine services are disproportionately underutilized by racial/ethnic minority groups and among patients with lower socioeconomic status. Disparities in telemedicine access and use among vulnerable populations threatens to exacerbate existing outcome inequalities affecting people with rheumatic disease. SUMMARY Telemedicine has the potential to expand rheumatology services by reaching traditionally underserved communities. However, some areas lack the infrastructure and technology to engage in telemedicine. Addressing health equity and the digital divide may help foster more inclusive telemedicine care.
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Affiliation(s)
- Lesley E Jackson
- Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, Alabama, USA
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17
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Izadi Z, Li J, Evans M, Hammam N, Katz P, Ogdie A, Suter LG, Yazdany J, Schmajuk G. Socioeconomic Disparities in Functional Status in a National Sample of Patients With Rheumatoid Arthritis. JAMA Netw Open 2021; 4:e2119400. [PMID: 34347058 PMCID: PMC8339935 DOI: 10.1001/jamanetworkopen.2021.19400] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
IMPORTANCE Little is known about the association of poverty with functional status (FS) in patients with rheumatoid arthritis (RA) who use rheumatology care. OBJECTIVES To examine the association between socioeconomic status (SES) and FS among patients with RA and to evaluate the association between SES and functional declines over time in patients who received at least some rheumatology care. DESIGN, SETTING, AND PARTICIPANTS This cohort study used data from the American College of Rheumatology's Rheumatology Informatics System for Effectiveness (RISE) registry between January 1, 2016, and December 31, 2018. Analyses included all adult patients with a confirmed RA diagnosis (ie, had ≥2 encounters associated with RA International Classification of Diseases codes ≥30 days apart) and at least 1 FS score documented between 2016 and 2018 seen at participating rheumatology practices. Data analysis was conducted from April to December 2020. EXPOSURES The Area Deprivation Index (ADI), a zip code-based indicator of neighborhood poverty, was used as a proxy for SES. ADI scores were categorized into quintiles. MAIN OUTCOMES AND MEASURES FS measures included Multidimensional Health Assessment Questionnaire (MDHAQ), Health Assessment Questionnaire Disability index, and Health Assessment Questionnaire-II. Cross-sectionally, mean FS scores were compared across ADI quintiles. Longitudinally, among patients with at least 2 FS scores, multilevel multivariate regression computed the probability of functional decline, defined as a change greater than the minimum clinically important difference, across ADI quintiles. In a subgroup analysis, whether disease activity mediated the association between SES and functional decline was examined. RESULTS Of the 83 965 patients included in the study, 66 649 (77%) were women, and 60 037 (72%) were non-Hispanic White. Mean (SD) age was 63.4 (13.7) years. MDHAQ was the most reported FS measure (56 928 patients [67.8%]). For all measures, mean (SD) FS score was worse at lower SES levels (eg, for MDHAQ quintile 1: 1.79 [1.87]; quintile 5: 2.43 [2.17]). In longitudinal analyses, the probability of functional decline was 14.1% (95% CI, 12.5%-15.7%) in the highest SES quintile and 18.9% (95% CI, 17.1%-20.7%) in the lowest SES quintile. The association between SES and functional decline was partially mediated (7%; 95% CI, 4%-22%) by disease activity. CONCLUSIONS AND RELEVANCE In this cohort study of patients with RA, worse FS and faster declines in functioning over time were observed in patients with lower SES. These findings provide a framework for monitoring disparities in RA and for generating evidence to spur action toward achieving health equity.
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Affiliation(s)
- Zara Izadi
- Department of Epidemiology and Biostatistics, University of California, San Francisco
- Division of Rheumatology, School of Medicine, University of California, San Francisco
| | - Jing Li
- Division of Rheumatology, School of Medicine, University of California, San Francisco
| | - Michael Evans
- Division of Rheumatology, School of Medicine, University of California, San Francisco
| | - Nevin Hammam
- Division of Rheumatology, School of Medicine, University of California, San Francisco
| | - Patricia Katz
- Division of Rheumatology, School of Medicine, University of California, San Francisco
| | - Alexis Ogdie
- Departments of Medicine and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Lisa G. Suter
- Yale University, New Haven, Connecticut
- VA Medical Center, West Haven, Connecticut
| | - Jinoos Yazdany
- Division of Rheumatology, School of Medicine, University of California, San Francisco
| | - Gabriela Schmajuk
- Division of Rheumatology, School of Medicine, University of California, San Francisco
- VA Medical Center, San Francisco, California
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18
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Martz CD, Hunter EA, Kramer MR, Wang Y, Chung K, Brown M, Drenkard C, Lim SS, Chae DH. Pathways linking census tract typologies with subjective neighborhood disorder and depressive symptoms in the Black Women's Experiences Living with Lupus (BeWELL) Study. Health Place 2021; 70:102587. [PMID: 34116496 PMCID: PMC8328917 DOI: 10.1016/j.healthplace.2021.102587] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 04/04/2021] [Accepted: 05/11/2021] [Indexed: 11/24/2022]
Abstract
Depression is a common comorbidity among Black women with systemic lupus erythematosus (SLE), an understudied autoimmune disease characterized by major racial and gender inequities. Research is needed that examines how area-level factors influence risk of depression in this population. Latent profile analysis revealed four neighborhood typologies among metropolitan Atlanta, Georgia census tracts that participants (n=438) in the Black Women's Experiences Living with Lupus (BeWELL) Study were living in: Integrated/High-SES, Moderately Segregated/Mid-SES, Highly Segregated/Mid-SES, and Highly Segregated/Low-SES. Structural equation models indicated that highly segregated census tracts were associated with the greatest levels of depression via increased subjective assessments of neighborhood disorder. Policies that invest in segregated areas and address physical and social aspects of the environment that contribute to neighborhood disorder may promote mental health among Black women with SLE.
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Affiliation(s)
- Connor D Martz
- Department of Human Development and Family Science, Auburn University, 203 Spidle Hall, Auburn, AL, 36849, USA.
| | - Evelyn A Hunter
- Department of Special Education, Rehabilitation, and Counseling, Auburn University, 2084 Haley Center, Auburn, AL, 36849, USA
| | - Michael R Kramer
- Department of Epidemiology, Emory University Rollins School of Public Health, 1518 Clifton Rd. NE, Atlanta, GA, 30322, USA
| | - Yijie Wang
- Department of Human Development and Family Studies, Michigan State University, 552 W. Circle Dr, East Lansing, MI, 48824, USA
| | - Kara Chung
- Department of Global Community Health and Behavioral Sciences, Tulane University School of Public Health and Tropical Medicine, 1440 Canal St, New Orleans, LA, 70112, USA
| | - Michael Brown
- School of Kinesiology, Auburn University, 301 Wire Rd., Auburn, AL, 36849, USA
| | - Cristina Drenkard
- Department of Epidemiology, Emory University Rollins School of Public Health, 1518 Clifton Rd. NE, Atlanta, GA, 30322, USA; Department of Medicine, Division of Rheumatology, Emory University School of Medicine, 1658 Clifton Rd. A, Atlanta, GA, 30322, USA
| | - S Sam Lim
- Department of Epidemiology, Emory University Rollins School of Public Health, 1518 Clifton Rd. NE, Atlanta, GA, 30322, USA; Department of Medicine, Division of Rheumatology, Emory University School of Medicine, 1658 Clifton Rd. A, Atlanta, GA, 30322, USA
| | - David H Chae
- Department of Global Community Health and Behavioral Sciences, Tulane University School of Public Health and Tropical Medicine, 1440 Canal St, New Orleans, LA, 70112, USA
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19
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Katz P, Dall’Era M, Trupin L, Rush S, Murphy LB, Lanata C, Criswell LA, Yazdany J. Impact of Limited Health Literacy on Patient-Reported Outcomes in Systemic Lupus Erythematosus. Arthritis Care Res (Hoboken) 2021; 73:110-119. [PMID: 32741118 PMCID: PMC7775267 DOI: 10.1002/acr.24361] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 10/01/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Health disparities in patient-reported outcomes by income and education are well documented; however, the impact of health literacy on patient-reported outcomes has received less attention. We examined independent effects of income, education, and health literacy on patient-reported outcomes in systemic lupus erythematosus (SLE). METHODS Data from the California Lupus Epidemiology Study (n = 323 participants) were used. Health literacy was assessed with a validated 3-item measure (ability to understand written information, reliance on others to understand written information, confidence in completing written forms). Patient-reported outcomes were administered by interview in English, Spanish, Cantonese, or Mandarin. Generic and disease-specific patient-reported outcomes were examined using the following: 10 Patient-Reported Outcomes Measurement Information System (PROMIS) short forms; the 8 Short Form 36 (SF-36) health survey subscales; and 3 patient-reported SLE disease activity and damage measures. We conducted 2 sets of multivariable analyses: the first examined education, income, or health literacy individually; the second included all 3 simultaneously. All multivariable models included age, sex, race/ethnicity, language, disease duration, and physician-assessed disease activity and damage. RESULTS More than one-third of participants (38%) had limited health literacy (LHL), including >25% with greater than high school education. In multivariable analyses simultaneously considering education, income, and health literacy, LHL was associated with significantly worse scores on all patient-reported outcomes except disease damage. In contrast, disparities by income were seen in only 3 PROMIS scales, 3 SF-36 subscales, and 1 disease activity measure. No disparities by education level were noted. CONCLUSION We found significantly worse patient-reported outcome scores among individuals with LHL, even after controlling for disease activity and damage. Whether disparities are due to actual differences in health or measurement issues requires further study.
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20
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Anandarajah A, Thirukumaran C, McCarthy K, McMahon S, Feng C, Ritchlin C. Identification and Characterization of a High-Need, High-Cost Group Among Hospitalized Patients With Systemic Lupus Erythematosus. Arthritis Care Res (Hoboken) 2020; 74:648-655. [PMID: 33202104 DOI: 10.1002/acr.24510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 10/18/2020] [Accepted: 11/10/2020] [Indexed: 11/07/2022]
Abstract
OBJECTIVE To identify a high-need, high-cost (HNHC) group among hospitalized lupus patients and to compare clinical and social factors of the HNHC group with those of other patients with lupus. METHODS All hospitalizations for lupus in a tertiary care center over a 3-year period were recorded. The number of admissions, 30-day readmissions, length of stay (LOS), and cost of admissions were compared for high-risk patients with those of all other hospitalized lupus patients (OHLP) during this period. We then compared clinical measures (double-stranded DNA [dsDNA] levels, complement proteins, body mass index, Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index [SDI] scores, and Case Mix Index [CMI] scores) for the HNHC cohort with those of the OHLP group. We additionally differentiated social factors (age, race and ethnicity, poverty, and medication adherence) between the 2 groups. RESULTS A total of 202 patients with lupus accounted for 467 hospitalizations over the study period. The total cost of admissions was $13,192,346. Forty-four patients had significantly higher admissions, 30-day readmissions, and LOS. Furthermore, the cost for this group was 6-fold that for the OHLP group, confirming the presence of an HNHC cohort. The HNHC group had significantly higher dsDNA levels, SDI scores, and CMI scores compared with the OHLP group. Infections were the most common cause of admission for both groups. Patients in the HNHC group were more likely to be African American, younger, diagnosed with lupus at an earlier age, to have lower medication adherence, and to be significantly more likely to live in areas of poverty. CONCLUSION A small group of patients with lupus (the HNHC group) accounts for most of the hospitalizations and cost. The HNHC group has both social and clinical factors significantly different from other patients with lupus.
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21
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Mehta B, Jannat-Khah D, Fontana MA, Moezinia CJ, Mancuso CA, Bass AR, Antao VC, Gibofsky A, Goodman SM, Ibrahim S. Impact of COVID-19 on vulnerable patients with rheumatic disease: results of a worldwide survey. RMD Open 2020; 6:rmdopen-2020-001378. [PMID: 33011680 PMCID: PMC7722380 DOI: 10.1136/rmdopen-2020-001378] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 09/15/2020] [Accepted: 09/19/2020] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE There is emerging evidence that COVID-19 disproportionately affects people from racial/ethnic minority and low socioeconomic status (SES) groups. Many physicians across the globe are changing practice patterns in response to the COVID-19 pandemic. We sought to examine the practice changes among rheumatologists and what they perceive the impact to be on their most vulnerable patients. METHODS We administered an online survey to a convenience sample of rheumatologists worldwide during the initial height of the pandemic (between 8 April and 4 May 2020) via social media and group emails. We surveyed rheumatologists about their opinions regarding patients from low SES and racial/ethnic minority groups in the context of the COVID-19 pandemic. Mainly, what their specific concerns were, including the challenges of medication access; and about specific social factors (health literacy, poverty, food insecurity, access to telehealth video) that may be complicating the management of rheumatologic conditions during this time. RESULTS 548 rheumatologists responded from 64 countries and shared concerns of food insecurity, low health literacy, poverty and factors that preclude social distancing such as working and dense housing conditions among their patients. Although 82% of rheumatologists had switched to telehealth video, 17% of respondents estimated that about a quarter of their patients did not have access to telehealth video, especially those from below the poverty line. The majority of respondents believed these vulnerable patients, from racial/ethnic minorities and from low SES groups, would do worse, in terms of morbidity and mortality, during the pandemic. CONCLUSION In this sample of rheumatologists from 64 countries, there is a clear shift in practice to telehealth video consultations and widespread concern for socially and economically vulnerable patients with rheumatic disease.
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Affiliation(s)
- Bella Mehta
- Hospital for Special Surgery, New York, New York, USA .,Weill Cornell Medical College, New York, New York, USA
| | - Deanna Jannat-Khah
- Hospital for Special Surgery, New York, New York, USA.,Weill Cornell Medical College, New York, New York, USA
| | | | | | - Carol A Mancuso
- Hospital for Special Surgery, New York, New York, USA.,Weill Cornell Medical College, New York, New York, USA
| | - Anne R Bass
- Hospital for Special Surgery, New York, New York, USA.,Weill Cornell Medical College, New York, New York, USA
| | | | - Allan Gibofsky
- Hospital for Special Surgery, New York, New York, USA.,Weill Cornell Medical College, New York, New York, USA
| | - Susan M Goodman
- Hospital for Special Surgery, New York, New York, USA.,Weill Cornell Medical College, New York, New York, USA
| | - Said Ibrahim
- Weill Cornell Medical College, New York, New York, USA
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22
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Abstract
Systemic lupus erythematosus (SLE) is a chronic multisystem autoimmune disease characterized by autoantibody production and diverse clinical manifestations. The many complex, overlapping, and closely associated factors that influence SLE susceptibility and outcomes include ethnic disparities, low adherence to medications, and poverty, and geography. Epigenetic mechanisms may provide the link between these environmental exposures and behaviors and the disproportionate burden of SLE seen in ethnic minorities. Attention to these modifiable social determinants of health would not only improve outcomes for vulnerable patients with SLE but likely reduce susceptibility to SLE as well through epigenetic changes.
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Affiliation(s)
- Christine A Peschken
- Rady Faculty of Health Sciences, University of Manitoba, RR149 Arthritis Centre, 800 Sherbrook Street, Winnipeg, Manitoba R3A1M4, Canada.
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Abstract
Systemic lupus erythematosus (SLE) disproportionately affects those with low socioeconomic status. Evidence from the past 2 decades has revealed clearer distinctions on the mechanisms of poverty that affect long-term outcomes in SLE. Poverty exacerbates direct, indirect, and humanistic costs and is associated with worse SLE disease damage, greater mortality, and poorer quality of life. Ongoing commitments from medicine and society are required to reduce disparities, improve access to care, and bolster resilience in persons with SLE who live in poverty.
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Feldman CH, Ramsey‐Goldman R. Widening Disparities Among Patients With Rheumatic Diseases in the COVID-19 Era: An Urgent Call to Action. Arthritis Rheumatol 2020; 72:1409-1411. [PMID: 32379381 PMCID: PMC7267415 DOI: 10.1002/art.41306] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 04/30/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Candace H. Feldman
- Brigham and Women's Hospital and Harvard Medical SchoolBostonMassachusetts
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Katz P, Wan GJ, Daly P, Topf L, Connolly-Strong E, Bostic R, Reed ML. Patient-reported flare frequency is associated with diminished quality of life and family role functioning in systemic lupus erythematosus. Qual Life Res 2020; 29:3251-3261. [PMID: 32683643 DOI: 10.1007/s11136-020-02572-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE To understand the influence of the systemic lupus erythematosus (SLE)-related flares on patient's health-related quality of life (HRQoL). METHODS An online survey included individuals with self-reported physician's diagnosis of SLE or lupus nephritis (LN). Lupus impact tracker (LIT) assessed lupus symptoms and HRQoL, SLE-Family questionnaire measured family role functioning, and Healthy Days Core Module (HDCM) measured overall mental and physical health. Chi-square and analysis of variance evaluated differences by flare frequency. Multivariable linear regression and generalized linear models evaluated the independent relationships of flare frequency to HRQoL. RESULTS 1066 respondents with SLE or LN completed the survey. Mean (SD) duration of illness was 12.4 (10.1) years. 93.4% (n = 996) were women, 82.3% (n = 830) were White, and 49.7% (n = 530) were employed or students. More frequent flares were associated with significantly worse scores on all HRQoL measures: LIT (adjusted means: 0 flares, 31.8; 1-3 flares, 47.0; 4-6 flares, 56.1; ≥ 7 flares, 63.6; P < 0.001); SLE-Family (adjusted means: 0 flares, 3.1; 1-3 flares 3.8; 4-6 flares, 4.3; ≥ 7 flares, 4.6, P < 0.001); HDCM unhealthy days (0 flares, 8.7; 1-3 flares, 17.4; 4-6 flares, 21.5; ≥ 7 flares, 26.2 days, P < 0.001). CONCLUSION Lupus flares contributed to impaired functional and psychological well-being, family functioning, and number of monthly healthy days. Better understanding of the burden of flare activity from the patient's perspective will support a holistic approach to lupus management.
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Affiliation(s)
- Patricia Katz
- School of Medicine, University of California San Francisco, San Francisco, CA, USA.
- Arthritis Research Group, University of California San Francisco, 3333 California Street, San Francisco, CA, 94143-0936, USA.
| | - George J Wan
- Global Head of Health Economics and Outcomes Research, Mallinckrodt Pharmaceuticals, Bedminster, NJ, USA
| | - Paola Daly
- The Lupus Foundation of America, Washington, DC, USA
| | - Lauren Topf
- The Lupus Foundation of America, Washington, DC, USA
| | - Erin Connolly-Strong
- Global Head of Health Economics and Outcomes Research, Mallinckrodt Pharmaceuticals, Bedminster, NJ, USA
- Field Medical Affairs, Mallinckrodt Pharmaceuticals, Bedminster, NJ, USA
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Hoge C, Bowling CB, Lim SS, Drenkard C, Plantinga LC. Association of Poverty Income Ratio with Physical Functioning in a Cohort of Patients with Systemic Lupus Erythematosus. J Rheumatol 2020; 47:983-990. [PMID: 32115428 DOI: 10.3899/jrheum.190991] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/10/2020] [Indexed: 01/28/2023]
Abstract
OBJECTIVE To examine the association of income relative to the poverty threshold [poverty income ratio (PIR)] with self-reported physical functioning (PF) in a cohort of patients with systemic lupus erythematosus. METHODS We used cross-sectional data on 744 participants from Georgians Organized Against Lupus (GOAL), and secondary analyses used data on 56 participants from a nested pilot study. Primary analyses used multivariable linear regression to estimate the association between PIR (categorized as < 1.00, 1.00-1.99, 2.00-3.99, and ≥ 4.00; lower PIR indicate higher poverty) and PF (scaled subscore from the Medical Outcomes Study Short Form-12 survey; range 0-100, higher scores indicate better functioning). Secondary analyses summarized complementary measures of PF as means or percentages by PIR (categorized as < 1.00, 1.00-1.99, and ≥ 2.00). RESULTS The mean age of participants was 48.0 years; 6.7% were male; 80.9% were black; and 37.5%, 21.0%, 29.6%, and 12.0% had PIR of < 1.00, 1.00-1.99, 2.00-3.99, and ≥ 4.00, respectively. The overall mean PF score was 45.8 (36.2, 40.7, 55.5, and 61.2 for PIR of < 1.00, 1.00-1.99, 2.00-3.99, and ≥ 4.00). With adjustment, higher PIR remained associated with higher PF scores [2.00-3.99 vs 1.00-1.99: β = 10.9 (95% CI 3.3-18.6); ≥ 4.00 vs 1.00-1.99: β = 16.2 (95% CI 6.4-26.0)]. In secondary analyses, higher PIR was also associated with higher scores for objective physical performance. CONCLUSION Our results show that higher income relative to the poverty threshold is associated with better PF across multiple domains, warranting further research into multicomponent functional assessments to develop individual treatment plans and potentially improve socioeconomic disparities in outcomes.
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Affiliation(s)
- Courtney Hoge
- From the Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia; Durham Veterans Affairs Geriatric Research Education and Clinical Center, Durham Veterans Affairs Medical Center (VAMC), and Department of Medicine, Duke University, Durham, North Carolina; and Department of Medicine, Emory University, Atlanta, Georgia, USA.,C. Hoge, MSPH, Department of Epidemiology, Rollins School of Public Health, Emory University; C.B. Bowling, MD, MSPH, Durham Veterans Affairs Geriatric Research Education and Clinical Center, Durham VAMC; S.S. Lim, MD, MPH, Department of Medicine, Emory University; C. Drenkard, MD, PhD, Department of Medicine, Emory University; L.C. Plantinga, PhD, Department of Epidemiology, Rollins School of Public Health, Department of Medicine, Emory University
| | - C Barrett Bowling
- From the Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia; Durham Veterans Affairs Geriatric Research Education and Clinical Center, Durham Veterans Affairs Medical Center (VAMC), and Department of Medicine, Duke University, Durham, North Carolina; and Department of Medicine, Emory University, Atlanta, Georgia, USA.,C. Hoge, MSPH, Department of Epidemiology, Rollins School of Public Health, Emory University; C.B. Bowling, MD, MSPH, Durham Veterans Affairs Geriatric Research Education and Clinical Center, Durham VAMC; S.S. Lim, MD, MPH, Department of Medicine, Emory University; C. Drenkard, MD, PhD, Department of Medicine, Emory University; L.C. Plantinga, PhD, Department of Epidemiology, Rollins School of Public Health, Department of Medicine, Emory University
| | - S Sam Lim
- From the Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia; Durham Veterans Affairs Geriatric Research Education and Clinical Center, Durham Veterans Affairs Medical Center (VAMC), and Department of Medicine, Duke University, Durham, North Carolina; and Department of Medicine, Emory University, Atlanta, Georgia, USA.,C. Hoge, MSPH, Department of Epidemiology, Rollins School of Public Health, Emory University; C.B. Bowling, MD, MSPH, Durham Veterans Affairs Geriatric Research Education and Clinical Center, Durham VAMC; S.S. Lim, MD, MPH, Department of Medicine, Emory University; C. Drenkard, MD, PhD, Department of Medicine, Emory University; L.C. Plantinga, PhD, Department of Epidemiology, Rollins School of Public Health, Department of Medicine, Emory University
| | - Cristina Drenkard
- From the Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia; Durham Veterans Affairs Geriatric Research Education and Clinical Center, Durham Veterans Affairs Medical Center (VAMC), and Department of Medicine, Duke University, Durham, North Carolina; and Department of Medicine, Emory University, Atlanta, Georgia, USA.,C. Hoge, MSPH, Department of Epidemiology, Rollins School of Public Health, Emory University; C.B. Bowling, MD, MSPH, Durham Veterans Affairs Geriatric Research Education and Clinical Center, Durham VAMC; S.S. Lim, MD, MPH, Department of Medicine, Emory University; C. Drenkard, MD, PhD, Department of Medicine, Emory University; L.C. Plantinga, PhD, Department of Epidemiology, Rollins School of Public Health, Department of Medicine, Emory University
| | - Laura C Plantinga
- From the Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia; Durham Veterans Affairs Geriatric Research Education and Clinical Center, Durham Veterans Affairs Medical Center (VAMC), and Department of Medicine, Duke University, Durham, North Carolina; and Department of Medicine, Emory University, Atlanta, Georgia, USA. .,C. Hoge, MSPH, Department of Epidemiology, Rollins School of Public Health, Emory University; C.B. Bowling, MD, MSPH, Durham Veterans Affairs Geriatric Research Education and Clinical Center, Durham VAMC; S.S. Lim, MD, MPH, Department of Medicine, Emory University; C. Drenkard, MD, PhD, Department of Medicine, Emory University; L.C. Plantinga, PhD, Department of Epidemiology, Rollins School of Public Health, Department of Medicine, Emory University.
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Update on lupus epidemiology: advancing health disparities research through the study of minority populations. Curr Opin Rheumatol 2020; 31:689-696. [PMID: 31436582 PMCID: PMC6791519 DOI: 10.1097/bor.0000000000000646] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The current review focuses on recent population-based studies that have examined the burden of lupus, disease outcomes, and gaps in quality of care, with an emphasis in research addressing health disparities.
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Feldman CH, Costenbader KH, Solomon DH, Subramanian SV, Kawachi I. Area-Level Predictors of Medication Nonadherence Among US Medicaid Beneficiaries With Lupus: A Multilevel Study. Arthritis Care Res (Hoboken) 2020; 71:903-913. [PMID: 30055088 DOI: 10.1002/acr.23721] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 07/24/2018] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Adherence to hydroxychloroquine (HCQ) treatment in patients with systemic lupus erythematous (SLE) is suboptimal. Although individual-level factors, including younger age and non-white race/ethnicity, have been implicated, contextual factors have not been explored. The aim of this study was to investigate the effect of contextual factors, including racial composition, socioeconomic status, and the concentration of health care resources, on adherence to HCQ among SLE patients enrolled in Medicaid. METHODS We identified SLE patients from 28 states in the US who enrolled in Medicaid (2000-2010) and in whom HCQ treatment was newly initiated (no use for ≥6 months). We required 12 months of continuous enrollment with complete drug dispensing data and measured adherence using the proportion of days covered (PDC). We identified individual-level variables from Medicaid, zip code-level, county-level and state-level sociodemographic variables from the American Community Survey, and health resources from Area Health Resources Files. We used 4-level hierarchical multivariable logistic regression models to examine the odds ratios (ORs) and 95% credible intervals (95% CrIs) of adherence (PDC ≥80%) versus nonadherence. RESULTS Among 10,268 patients with SLE in whom HCQ treatment was initiated, 15% were adherent to treatment. After we adjusted for individual-level characteristics, we observed lower odds of adherence among patients living in zip code areas with a higher percentage of black individuals (highest tertile OR 0.81 [95% CrI 0.69-0.96] versus lowest tertile). This association persisted after controlling for area-level educational attainment, percent below federal poverty level (FPL), urbanicity, and health care resources. We did not observe statistically significant associations with zip code-level percent Hispanic, percent white, education, or percent below FPL. The odds of adherence were higher in counties with more hospitals (OR 1.30 [95% CrI 1.07-1.58]). CONCLUSION Among Medicaid beneficiaries with SLE, we observed significant effects of racial composition and hospital concentration on HCQ adherence. Interventions that acknowledge and address contextual factors should be considered in order to reduce high rates of nonadherence in vulnerable populations.
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Affiliation(s)
| | | | | | - S V Subramanian
- Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Ichiro Kawachi
- Harvard T. H. Chan School of Public Health, Boston, Massachusetts
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Chae DH, Martz CD, Fuller-Rowell TE, Spears EC, Smith TTG, Hunter EA, Drenkard C, Lim SS. Racial Discrimination, Disease Activity, and Organ Damage: The Black Women's Experiences Living With Lupus (BeWELL) Study. Am J Epidemiol 2019; 188:1434-1443. [PMID: 31062841 DOI: 10.1093/aje/kwz105] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 04/23/2019] [Accepted: 04/24/2019] [Indexed: 12/21/2022] Open
Abstract
Black women are disproportionately affected by systemic lupus erythematosus (SLE), a chronic, potentially debilitating autoimmune disease, and they also experience more rapid progression and worse outcomes compared with other groups. We examined if racial discrimination is associated with disease outcomes among 427 black women with a validated diagnosis of SLE, who live in the Atlanta, Georgia, metropolitan area, and were recruited to the Black Women's Experiences Living with Lupus Study (2015-2017). Frequency of self-reported experiences of racial discrimination in domains such as employment, housing, and medical settings was assessed using the Experiences of Discrimination measure. SLE activity in the previous 3 months, including symptoms of fatigue, fever, skin rashes, and ulcers, was measured using the Systemic Lupus Activity Questionnaire; irreversible damage to an organ or system was measured using the Brief Index of Lupus Damage. Results of multivariable linear regression analyses examining the Systemic Lupus Activity Questionnaire and log-transformed Brief Index of Lupus Damage scores indicated that increasing frequency of racial discrimination was associated with greater SLE activity (b = 2.00, 95% confidence interval: 1.32, 2.68) and organ damage (b = 0.08, 95% confidence interval: 0.02, 0.13). Comprehensive efforts to address disparities in SLE severity should include policies that address issues of racial discrimination.
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Affiliation(s)
- David H Chae
- Department of Human Development and Family Studies, College of Human Sciences, Auburn University, Auburn, Alabama
| | - Connor D Martz
- Department of Human Development and Family Studies, College of Human Sciences, Auburn University, Auburn, Alabama
| | - Thomas E Fuller-Rowell
- Department of Human Development and Family Studies, College of Human Sciences, Auburn University, Auburn, Alabama
| | - Erica C Spears
- Department of Human Development and Family Studies, College of Human Sciences, Auburn University, Auburn, Alabama
| | - Tianqi Tenchi Gao Smith
- Department of Industrial and Systems Engineering, Samuel Ginn College of Engineering, Auburn University, Auburn, Alabama
| | - Evelyn A Hunter
- Department of Special Education, Rehabilitation and Counseling, College of Education, Auburn University, Auburn, Alabama
| | - Cristina Drenkard
- Department of Medicine, Division of Rheumatology, School of Medicine, Emory University, Atlanta, Georgia
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - S Sam Lim
- Department of Medicine, Division of Rheumatology, School of Medicine, Emory University, Atlanta, Georgia
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
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Socioeconomic status at diagnosis influences the incremental direct medical costs of systemic lupus erythematosus: A longitudinal population-based study. Semin Arthritis Rheum 2019; 50:77-83. [PMID: 31358362 DOI: 10.1016/j.semarthrit.2019.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 06/10/2019] [Accepted: 06/10/2019] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To assess the incremental direct medical costs of a population-based cohort of incident systemic lupus erythematosus (SLE) for the first five years after diagnosis, and impact of socioeconomic status (SES) on such incremental costs. METHODS From the administrative health databases in British Columbia, Canada, we identified all adults with newly-diagnosed SLE from 1996 to 2010 and obtained a sample from the general non-SLE population matched on sex, age, and calendar-year. We captured costs for outpatient encounters, hospitalisations, and dispensed medications. Using two-part generalised linear models, we estimated per-person-year incremental costs of SLE (difference in costs between SLE and non-SLE, controlling for covariates) during the first five years after diagnosis, and assessed differences in incremental costs across SES groups. RESULTS We included 4679 newly-diagnosed SLE (86% identified from hospitalisations or rheumatologists) and 23,219 non-SLE individuals. Per-person direct costs for SLE in the first year after diagnosis averaged $13,038 (2013 Canadian), with 61% from hospitalisations, 23% from outpatient encounters, and 16% from medications; costs for non-SLE averaged $2,431. Following adjustment, incremental costs of SLE during the first five years after diagnosis averaged $10,078 per-person-year (95% CI=$2062-$32,254). Predicted incremental hospitalisation, outpatient, and medication costs were all significantly-greater for the low-SES patients versus high-SES (additional $1922 per-person-year in incremental costs for low-SES). Similar patterns were observed when restricting to those followed the full five-years after index date. CONCLUSION Even in a single-payer, publicly-funded healthcare setting, low SES at SLE diagnosis was associated with significantly-greater direct medical costs for the management of SLE and associated complications.
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Heshin-Bekenstein M, Trupin L, Yelin E, von Scheven E, Yazdany J, Lawson EF. Longitudinal disease- and steroid-related damage among adults with childhood-onset systemic lupus erythematosus. Semin Arthritis Rheum 2019; 49:267-272. [PMID: 31235075 DOI: 10.1016/j.semarthrit.2019.05.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 05/01/2019] [Accepted: 05/28/2019] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Determine whether adults with childhood-onset systemic lupus erythematosus (cSLE) are at increased risk for disease- and steroid-related damage as compared to individuals with adult-onset SLE (aSLE), and whether they continue to accumulate disease damage in adulthood. METHODS Data derive from the 2007-2015 cycles of the Lupus Outcomes Study, a longitudinal cohort of adults with confirmed SLE. The Brief Index of Lupus Damage (BILD), a validated, patient-reported measure, was used to assess SLE-associated damage. Participants with baseline BILD were included (N = 1035). Diagnosis at age < 18 years was defined as cSLE (N = 113). Outcome variables included BILD score at baseline and follow-up, clinically significant change in BILD score over follow-up period, and presence of steroid-related damage (cataracts, osteoporosis-related fracture, avascular necrosis or diabetes mellitus). RESULTS Mean time between baseline and follow up BILD assessment was 6.3 ± 1.7 years. In adjusted analyses, participants with cSLE and aSLE had similar levels of disease-related damage, and accumulated damage at similar rates. Participants with cSLE were more likely to report steroid-related damage (OR 1.7, 95% CI 1.1-2.8) in the adjusted analysis as compared to those with aSLE. Likelihood of steroid-related damage increased with disease duration for both groups, but was consistently higher among cSLE participants. CONCLUSION In this longitudinal cohort of adults with SLE, participants continued to accumulate damage at similar rates over time, regardless of age at onset or disease duration. Childhood-onset predicted increased risk of steroid-related damage. Aggressive use of steroid-sparing treatment strategies during childhood may be important to prevent steroid-related damage in adulthood.
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Affiliation(s)
- Merav Heshin-Bekenstein
- Division of Pediatric Rheumatology, University of California San Francisco. Address: 550 16th Street, 5th Floor, San Francisco, CA 94143-0632, United States; Pediatric Rheumatology Clinic, Dana Children's Hospital, Tel Aviv Medical Center, Tel Aviv University, Israel.
| | - Laura Trupin
- Rosalind Russell/Ephraim Engleman Rheumatology Research Center, University of California, San Francisco. Address: 513 Parnassus Avenue, Box 0500, United States
| | - Ed Yelin
- Rosalind Russell/Ephraim Engleman Rheumatology Research Center, University of California San Francisco. Address: UCSF San Francisco, CA 94143-0920, United States
| | - Emily von Scheven
- Division of Pediatric Rheumatology, University of California San Francisco. Address: 550 16th Street, 5th Floor, San Francisco, CA 94143-0632, United States
| | - Jinoos Yazdany
- Division of Rheumatology, University of California San Francisco, 1001 Potrero Avenue, Building 30, San Francisco, CA 94110, United States
| | - Erica F Lawson
- Division of Pediatric Rheumatology, University of California San Francisco. Address: 550 16th Street, 5th Floor, San Francisco, CA 94143-0632, United States
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Yelin E, Trupin L, Bunde J, Yazdany J. Poverty, Neighborhoods, Persistent Stress, and Systemic Lupus Erythematosus Outcomes: A Qualitative Study of the Patients' Perspective. Arthritis Care Res (Hoboken) 2019; 71:398-405. [PMID: 29781579 PMCID: PMC6249128 DOI: 10.1002/acr.23599] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 05/15/2018] [Indexed: 11/07/2022]
Abstract
OBJECTIVE To obtain the perspective of individuals with systemic lupus erythematosus (SLE) regarding the role of poverty, neighborhood, and chronic stress in SLE outcomes. METHODS Through annual structured interviews as part of the Lupus Outcomes Study, 723 persons with SLE were followed from 2003 to 2015 in order to establish the effect of combinations of poverty, persistent poverty, residence in an area of concentrated poverty, access to health care, and chronic stress on accumulated damage. We obtained a sample of 28 of the 723 individuals on the basis of household income, geography, and outcomes in their last interview, and administered qualitative interviews to explore their perspectives on the impact of these factors on SLE outcomes. The interviews were recorded, transcribed, and analyzed using a grounded theory approach. RESULTS Persons in poverty frequently reported that poverty necessitated a choice to deal with food, medical care, and housing insecurity on a daily basis and to relegate their management of SLE to occurrences of disease flares. They also reported that exposure to crime in their neighborhoods was a stressor that triggered worse disease activity. Affluent participants reported that neighborhood neither helped nor hindered dealing with SLE, because they relied on networks not tied to neighborhoods to deal with SLE. CONCLUSION Mitigating poverty and reducing exposure to crime through moving to safer neighborhoods are factors identified by individuals with SLE as potentially critical in disease outcomes.
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Affiliation(s)
- Edward Yelin
- Philip R Lee Institute for Health Policy Studies, UCSF
- Rosalind Russell/Ephraim Engleman Rheumatology Research Center, UCSF
- Institute for Research on Labor and Employment, UC, Berkeley
| | - Laura Trupin
- Philip R Lee Institute for Health Policy Studies, UCSF
- Rosalind Russell/Ephraim Engleman Rheumatology Research Center, UCSF
| | - Jared Bunde
- School of Nursing, Health Policy Program, UCSF
| | - Jinoos Yazdany
- Rosalind Russell/Ephraim Engleman Rheumatology Research Center, UCSF
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Lockshin MD, Barbhaiya M, Izmirly P, Buyon JP, Crow MK. SLE: reconciling heterogeneity. Lupus Sci Med 2019; 6:e000280. [PMID: 31080630 PMCID: PMC6485210 DOI: 10.1136/lupus-2018-000280] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 11/14/2018] [Accepted: 11/18/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Michael D Lockshin
- Barbara Volcker Center, Hospital for Special Surgery, New York City, New York, USA
| | - Medha Barbhaiya
- Barbara Volcker Center, Hospital for Special Surgery, New York City, New York, USA
| | - Peter Izmirly
- Division of Rheumatology, Department of Medicine, New York University School of Medicine, New York City, New York, USA
| | - Jill P Buyon
- Division of Rheumatology, Department of Medicine, New York University School of Medicine, New York City, New York, USA
| | - Mary K Crow
- Mary Kirkland Center for Lupus Research, Hospital for Special Surgery, New York City, New York, USA
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Putrik P, Ramiro S, Moltó A, Keszei AP, Norton S, Dougados M, van der Heijde D, Landewé RBM, Boonen A. Individual-level and country-level socioeconomic determinants of disease outcomes in SpA: multinational, cross-sectional study (ASAS-COMOSPA). Ann Rheum Dis 2019; 78:486-493. [PMID: 30674477 DOI: 10.1136/annrheumdis-2018-214259] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 12/20/2018] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To explore the independent contribution of individual-level and country level socioeconomic status (SES) determinants to disease activity and physical function in patients with spondyloarthritis (SpA). METHODS Data from the cross-sectional, multinational (n=22 countries worldwide) COMOSPA (COMOrbidities in SpA) study were used. Contribution of individual SES factors (gender, education) and country of residence to Ankylosing Spondylitis Disease Activity Score (ASDAS) and Bath Ankylosing Spondylitis Functional Index (BASFI) was explored in multilevel regression models, adjusting for clinical and demographic confounders. Next, the additional effects of national macroeconomic indicators (gross domestic product [GDP], Human Development Index, healthcare expenditure and Gini index) were explored. The mediating role of uptake of biologic disease-modifying antirheumatic drugs between education or GDP and ASDAS was explored by testing indirect effects. RESULTS In total, 3370 patients with SpA were included: 65% were male, with a mean age of 43 (SD 14), ASDAS of 2.0 (SD 1.1) and BASFI score of 3.1 (SD 2.7). In adjusted models, patients with low education and female patients had an OR of 1.7 (95% CI 1.3 to 2.2) and an OR of 1.7 (95% CI 1.4 to 2.0), respectively, of having ASDAS ≥2.1. They also reported slightly worse function. Large country differences were observed independent of individual SES and clinical confounders. Patients from less SES developed countries have worse ASDAS, while patterns for BASFI were insignificant. Uptake of biologicals did not mediate the relationship between individual-level or country-level SES and disease activity. CONCLUSIONS Individual-level and country-level health inequalities exist also among patients with SpA. Women and lower educated persons had worse disease activity and somewhat worse physical function. While patients in less socioeconomically developed countries had higher disease activity, they reported similar physical function.
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Affiliation(s)
- Polina Putrik
- Rheumatology, Maastricht University Medical Center and Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
| | - Sofia Ramiro
- Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Anna Moltó
- Rheumatology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, and INSERM (U1153): Clinical Epidemiology and Biostatistics, PRES Sorbonne Paris-Cité, Paris Descartes University, Paris, France
| | - Andras P Keszei
- Medical Informatics, Uniklinik RWTH Aachen University, Aachen, Germany
| | - Sam Norton
- Academic Rheumatology Department, King's College London, London, UK
| | - Maxime Dougados
- Rheumatology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, and INSERM (U1153): Clinical Epidemiology and Biostatistics, PRES Sorbonne Paris-Cité, Paris Descartes University, Paris, France
| | | | - Robert B M Landewé
- Amsterdam Rheumatology & Immunology Center, Amsterdam, The Netherlands.,Rheumatology, Zuyderland Medical Center, Heerlen, The Netherlands
| | - Annelies Boonen
- Rheumatology, Maastricht University Medical Center and Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
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Yelin E, Yazdany J, Trupin L. Relationship Between Poverty and Mortality in Systemic Lupus Erythematosus. Arthritis Care Res (Hoboken) 2018; 70:1101-1106. [PMID: 28973834 PMCID: PMC5882599 DOI: 10.1002/acr.23428] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 09/26/2017] [Indexed: 11/08/2022]
Abstract
OBJECTIVE A prior study established that concurrent poverty, persistent poverty, and exiting poverty were associated with the subsequent extent of damage accumulation in systemic lupus erythematosus (SLE). In this study, we examined whether concurrent poverty affects mortality after taking extent of damage accumulation into account. METHODS Analyses were conducted on 807 persons with SLE participating in the University of California-San Francisco Lupus Outcomes Study in 2009, stratified by whether they lived in households with incomes ≤125% of the federal poverty level in that year. We used Cox proportional hazards regression to estimate the risk of mortality as a function of poverty status, with and without adjustment for demographics; lupus status, including extent of disease damage; overall health status; health behaviors; and health care characteristics. RESULTS Among 807 individuals interviewed in 2009, 71 (8.8%) had died by 2015, 57 (8.3%) among the nonpoor and 14 (12.1%) among the poor (P = 0.18). With adjustment only for age, poverty in 2009 was associated with an increased risk of mortality (hazard ratio [HR] 2.14 [95% confidence interval (95% CI) 1.18-3.88]) through 2015. However, after adjustment for extent of damage and age, poverty was no longer associated with an increased risk of mortality (HR 1.68 [95% CI 0.91-3.10]). Among those who died, those who were poor lived 13.9 fewer years (95% CI 6.9-20.8; P < 0.0001). CONCLUSION The principal way that poverty results in higher mortality in SLE is by increasing the extent of damage accumulation.
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Affiliation(s)
- Edward Yelin
- Philip R Lee Institute for Health Policy Studies, UCSF
- Rosalind Russell/Ephraim Engleman Rheumatology Research Center, UCSF
| | - Jinoos Yazdany
- Rosalind Russell/Ephraim Engleman Rheumatology Research Center, UCSF
| | - Laura Trupin
- Philip R Lee Institute for Health Policy Studies, UCSF
- Rosalind Russell/Ephraim Engleman Rheumatology Research Center, UCSF
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Yelin E, Trupin L, Yazdany J. Reply. Arthritis Care Res (Hoboken) 2018; 71:698-699. [PMID: 29609222 DOI: 10.1002/acr.23564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Edward Yelin
- Russell/Engleman Rheumatology Research Center and Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, CA
| | - Laura Trupin
- Russell/Engleman Rheumatology Research Center and Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, CA
| | - Jinoos Yazdany
- Russell/Engleman Rheumatology Research Center, San Francisco, CA
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Feldman CH, Broder A, Guan H, Yazdany J, Costenbader KH. Sex Differences in Health Care Utilization, End-Stage Renal Disease, and Mortality Among Medicaid Beneficiaries With Incident Lupus Nephritis. Arthritis Rheumatol 2018; 70:417-426. [PMID: 29193893 PMCID: PMC5826885 DOI: 10.1002/art.40392] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/22/2017] [Indexed: 12/25/2022]
Abstract
OBJECTIVE While systemic lupus erythematosus and lupus nephritis (LN) disproportionately affect females, previous studies suggest that males may experience poorer outcomes. We undertook this study to investigate sex differences in health care utilization, end-stage renal disease (ESRD), and mortality among patients with LN receiving Medicaid, public insurance for low-income individuals. METHODS Within the Medicaid Analytic eXtract (MAX) from 29 states (from 2000 to 2010), we used billing claims to identify individuals ages 5-65 years with incident LN (positive predictive value 80%). MAX data were linked to the US Renal Data System to determine ESRD and to Social Security Death Index files to determine death. We estimated adjusted incidence rate ratios (IRRs) by sex for health care utilization using Poisson regression, and we used multivariable proportional hazards models to compare risks of ESRD and death by sex. RESULTS Of 2,750 patients with incident LN, 283 (10%) were male. The mean ± SD follow-up period for both sexes was 3.1 ± 2.3 years. The mean ± SD age was 29.6 ± 13.9 years among females and 24.7 ± 14.1 years among males (P < 0.01). Males had fewer outpatient visits (IRR 0.88 [95% confidence interval (95% CI) 0.80-0.97]) and fewer emergency department visits (IRR 0.75 [95% CI 0.63-0.90]). The 5-year cumulative incidence of ESRD was 22.3% in males and 21.2% in females. The 5-year cumulative incidence of death was 9.4% in males and 9.8% in females. Comparing males to females, there were no sex differences in ESRD (subdistribution hazard ratio [HR] 1.05 [95% CI 0.76-1.45]) or death (HR 0.81 [95% CI 0.47-1.35]). CONCLUSION In this cohort of patients with incident LN, ESRD and mortality were extremely high overall but were not increased among males compared to females. In this vulnerable population, biologic and health care utilization differences by sex may not significantly affect outcomes.
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Affiliation(s)
- Candace H. Feldman
- Division of Rheumatology, Immunology & Allergy, Department of Medicine, Brigham and Women’s Hospital, Boston, MA
| | - Anna Broder
- Department of Medicine (Rheumatology), Montefiore Medical Systems and Albert Einstein College of Medicine, Bronx, NY
| | - Hongshu Guan
- Division of Rheumatology, Immunology & Allergy, Department of Medicine, Brigham and Women’s Hospital, Boston, MA
| | - Jinoos Yazdany
- Division of Rheumatology, Department of Medicine, UCSF, San Francisco, CA
| | - Karen H. Costenbader
- Division of Rheumatology, Immunology & Allergy, Department of Medicine, Brigham and Women’s Hospital, Boston, MA
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Pope JE, Weisman MH, Sjöwall C. Editorial: The Effect of Ethnicity on Cardiovascular Outcomes in Systemic Lupus Erythematosus Is Perhaps Not a Paradox. Arthritis Rheumatol 2017; 69:1707-1709. [PMID: 28598003 DOI: 10.1002/art.40173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 06/06/2017] [Indexed: 01/24/2023]
Affiliation(s)
- Janet E Pope
- University of Western Ontario, St. Joseph's Health Care, London, Ontario, Canada
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