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Vyas N, Zaheer A, Wijeysundera HC. Untangling the Complex Multidimensionality of the Social Determinants of Cardiovascular Health: A Systematic Review. Can J Cardiol 2024; 40:1000-1006. [PMID: 38513932 DOI: 10.1016/j.cjca.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 02/21/2024] [Accepted: 03/09/2024] [Indexed: 03/23/2024] Open
Abstract
BACKGROUND The cardiovascular literature is limited by the lack of consensus on what are the best metrics for reporting social determinants of health (SDH) or social deprivation, and if they should be reported as a single metric or separately by their domains. METHODS A systematic review of the literature on cardiovascular surgeries and procedures was conducted, identifying articles from January 1, 2010, to December 31, 2023, that studied the relationship between health outcomes after cardiovascular procedures or surgeries and SDH/social deprivation. The cardiovascular procedures/surgeries of interest were coronary and valve surgeries and procedures including coronary artery bypass grafting (CABG), percutaneous coronary intervention (PCI), valve replacement or repair, and transcatheter aortic valve intervention. RESULTS After screening 638 articles, we identified 47 papers that met our inclusion and exclusion criteria. The most common procedure evaluated was CABG and PCI; 46 of the studies focused on these 2 procedures. Almost all of the articles reported a different metric for SDH/social deprivation (41 different metrics); despite this, all of the metrics showed a consistent relationship with worse outcomes associated with greater degrees of SDH/deprivation. Only 9 reported on the individual domains of SDH/social deprivation; 3 studies showed a discordant relationship. CONCLUSIONS Although our systematic review identified numerous articles evaluating the relationship between SDH/social deprivation in cardiovascular disease, there was substantial heterogeneity in which metric was used and how it was reported. This reinforces the need for standards as to the best metrics for SDH/social deprivation as well as best practices for reporting.
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Affiliation(s)
- Navya Vyas
- Schulich Heart Program, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Aida Zaheer
- Schulich Heart Program, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Harindra C Wijeysundera
- Schulich Heart Program, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada; Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; ICES, Toronto, Ontario, Canada; Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada.
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Shih E, Squiers JJ, Banwait JK, Harrington KB, Ryan WH, DiMaio JM, Schaffer JM. Race, neighborhood disadvantage, and survival of Medicare beneficiaries after aortic valve replacement and concomitant coronary artery bypass grafting. J Thorac Cardiovasc Surg 2024; 167:2076-2090.e19. [PMID: 36894351 DOI: 10.1016/j.jtcvs.2023.02.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 01/17/2023] [Accepted: 02/04/2023] [Indexed: 02/17/2023]
Abstract
BACKGROUND Race, neighborhood disadvantage, and the interaction between these 2 social determinants of health remain poorly understood with regards to survival after aortic valve replacement with concomitant coronary artery bypass grafting (AVR+CABG). METHODS Weighted Kaplan-Meier survival analyses and Cox proportional hazards modeling were used to evaluate the association between race, neighborhood disadvantage, and long-term survival in 205,408 Medicare beneficiaries undergoing AVR+CABG from 1999 to 2015. Neighborhood disadvantage was measured using the Area Deprivation Index, a broadly validated ranking of socioeconomic contextual disadvantage. RESULTS Self-identified race was 93.9% White and 3.2% Black. Residents of the most disadvantaged quintile of neighborhoods included 12.6% of all White beneficiaries and 40.0% of all Black beneficiaries. Black beneficiaries and residents of the most disadvantaged quintile of neighborhoods had more comorbidities compared with White beneficiaries and residents of the least disadvantaged quintile of neighborhoods, respectively. Increasing neighborhood disadvantage linearly increased the hazard for mortality for Medicare beneficiaries of White but not Black race. Residents of the most and least disadvantaged neighborhood quintiles had weighted median overall survival of 93.0 and 82.1 months, respectively, a significant difference (P < .001 by Cox test for equality of survival curves). Black and White beneficiaries had weighted median overall survival of 93.4 and 90.6 months, respectively, a nonsignificant difference (P = .29 by Cox test for equality of survival curves). A statistically significant interaction between race and neighborhood disadvantage was noted (likelihood ratio test P = .0215) and had implications on whether Black race was associated with survival. CONCLUSIONS Increasing neighborhood disadvantage was linearly associated with worse survival after combined AVR+CABG in White but not Black Medicare beneficiaries; race, however, was not independently associated with postoperative survival.
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Affiliation(s)
- Emily Shih
- Department of General Surgery, Baylor University Medical Center, Dallas, Tex; Baylor Scott and White Research Institute, Dallas, Tex.
| | - John J Squiers
- Department of General Surgery, Baylor University Medical Center, Dallas, Tex; Department of Cardiothoracic Surgery, Baylor Scott and White The Heart Hospital, Plano, Tex
| | | | - Katherine B Harrington
- Department of Cardiothoracic Surgery, Baylor Scott and White The Heart Hospital, Plano, Tex
| | - William H Ryan
- Department of Cardiothoracic Surgery, Baylor Scott and White The Heart Hospital, Plano, Tex
| | - J Michael DiMaio
- Baylor Scott and White Research Institute, Dallas, Tex; Department of Cardiothoracic Surgery, Baylor Scott and White The Heart Hospital, Plano, Tex
| | - Justin M Schaffer
- Department of Cardiothoracic Surgery, Baylor Scott and White The Heart Hospital, Plano, Tex
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Ng GY, Karsalia R, Gallagher RS, Borja AJ, Na J, McClintock SD, Malhotra NR. The Impact of Neighborhood Socioeconomic Disadvantage on Operative Outcomes after Single-Level Lumbar Fusion. World Neurosurg 2023; 180:e440-e448. [PMID: 37757946 DOI: 10.1016/j.wneu.2023.09.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023]
Abstract
INTRODUCTION The relationship between socioeconomic status and neurosurgical outcomes has been investigated with respect to insurance status or median household income, but few studies have considered more comprehensive measures of socioeconomic status. This study examines the relationship between Area Deprivation Index (ADI), a comprehensive measure of neighborhood socioeconomic disadvantage, and short-term postoperative outcomes after lumbar fusion surgery. METHODS 1861 adult patients undergoing single-level, posterior-only lumbar fusion at a single, multihospital academic medical center were retrospectively enrolled. An ADI matching protocol was used to identify each patient's 9-digit zip code and the zip code-associated ADI data. Primary outcomes included 30- and 90-day readmission, emergency department visits, reoperation, and surgical complication. Coarsened exact matching was used to match patients on key demographic and baseline characteristics known to independently affect neurosurgical outcomes. Odds ratios (ORs) were computed to compare patients in the top 10% of ADI versus lowest 40% of ADI. RESULTS After matching (n = 212), patients in the highest 10% of ADI (compared to the lowest 40% of ADI) had significantly increased odds of 30- and 90-day readmission (OR = 5.00, P < 0.001 and OR = 4.50, P < 0.001), ED visits (OR = 3.00, P = 0.027 and OR = 2.88, P = 0.007), and reoperation (OR = 4.50, P = 0.039 and OR = 5.50, P = 0.013). There was no significant association with surgical complication (OR = 0.50, P = 0.63). CONCLUSIONS Among otherwise similar patients, neighborhood socioeconomic disadvantage (measured by ADI) was associated with worse short-term outcomes after single-level, posterior-only lumbar fusion. There was no significant association between ADI and surgical complications, suggesting that perioperative complications do not explain the socioeconomic disparities in outcomes.
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Affiliation(s)
- Grace Y Ng
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Bostom, Massachusetts, USA
| | - Ritesh Karsalia
- Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Ryan S Gallagher
- Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Austin J Borja
- Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jianbo Na
- McKenna EpiLog Fellowship in Population Health, The University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Scott D McClintock
- Department of Mathematics, The West Chester Statistical Institute, West Chester University, West Chester, Pennsylvania, USA
| | - Neil R Malhotra
- Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA; McKenna EpiLog Fellowship in Population Health, The University of Pennsylvania, Philadelphia, Pennsylvania, USA.
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Bauer TM, Yaser JM, Daramola T, Mansour AI, Ailawadi G, Pagani FD, Theurer P, Likosky DS, Keteyian SJ, Thompson MP. Cardiac Rehabilitation Reduces 2-Year Mortality After Coronary Artery Bypass Grafting. Ann Thorac Surg 2023; 116:1099-1105. [PMID: 37392993 PMCID: PMC11007662 DOI: 10.1016/j.athoracsur.2023.05.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 05/12/2023] [Accepted: 05/30/2023] [Indexed: 07/03/2023]
Abstract
BACKGROUND Cardiac rehabilitation (CR) is a supervised outpatient exercise and risk reduction program offered to patients who have undergone coronary revascularization procedures. Multiple professional societal guidelines support the use of CR after coronary artery bypass grafting (CABG) based on studies in combined percutaneous coronary intervention and CABG populations with surrogate outcomes. This statewide analysis of patients undergoing CABG evaluated the relationship between CR use and long-term mortality. METHODS Medicare fee-for-service claims were linked to surgical data for patients discharged alive after isolated CABG from January 1, 2015, through September 30, 2019. Outpatient facility claims were used to identify any CR use within 1 year of discharge. Death within 2 years of discharge was the primary outcome. Mixed-effects logistic regression was used to predict CR use, adjusting for a variety of comorbidities. Unadjusted and inverse probability treatment weighting (IPTW) were used to compare 2-year mortality among CR users vs nonusers. RESULTS A total of 3848 of 6412 patients (60.0%) were enrolled in CR for an average of 23.2 (SD, 12.0) sessions, with 770 of 6412 (12.0%) completing all recommended 36 sessions. Logistic regression identified increasing age, discharge to home (vs extended care facility), and shorter length of stay as predictors of postdischarge CR use (P < .05). Unadjusted and IPTW analyses showed significant reduction in 2-year mortality in CR users compared with CR nonusers (unadjusted: 9.4% reduction; 95% CI, 10.8%-7.9%; P < .001; IPTW: -4.8% reduction; 95% CI, 6.0%-3.5%; P < .001). CONCLUSIONS These data suggest that CR use is associated with lower 2-year mortality. Future quality initiatives should consider identifying and addressing root causes of poor CR enrollment and completion.
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Affiliation(s)
- Tyler M Bauer
- Department of Cardiac Surgery, University of Michigan, Ann Arbor, Michigan
| | | | | | | | - Gorav Ailawadi
- Department of Cardiac Surgery, University of Michigan, Ann Arbor, Michigan
| | - Francis D Pagani
- Department of Cardiac Surgery, University of Michigan, Ann Arbor, Michigan; Michigan Society of Thoracic and Cardiovascular Surgeons Quality Collaborative, Ann Arbor, Michigan
| | - Patricia Theurer
- Michigan Society of Thoracic and Cardiovascular Surgeons Quality Collaborative, Ann Arbor, Michigan
| | - Donald S Likosky
- Department of Cardiac Surgery, University of Michigan, Ann Arbor, Michigan; Michigan Society of Thoracic and Cardiovascular Surgeons Quality Collaborative, Ann Arbor, Michigan
| | - Steven J Keteyian
- Michigan Society of Thoracic and Cardiovascular Surgeons Quality Collaborative, Ann Arbor, Michigan; Division of Cardiovascular Medicine, Henry Ford Health, Detroit, Michigan
| | - Michael P Thompson
- Department of Cardiac Surgery, University of Michigan, Ann Arbor, Michigan; Michigan Value Collaborative, Ann Arbor, Michigan.
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Thompson MP, Hou H, Stewart JW, Pagani FD, Hawkins RB, Keteyian SJ, Sukul D, Likosky DS. Relationship Between Community-Level Distress and Cardiac Rehabilitation Participation, Facility Access, and Clinical Outcomes After Inpatient Coronary Revascularization. Circ Cardiovasc Qual Outcomes 2023; 16:e010148. [PMID: 37855157 PMCID: PMC10953712 DOI: 10.1161/circoutcomes.123.010148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 09/18/2023] [Indexed: 10/20/2023]
Abstract
BACKGROUND Although disparities in cardiac rehabilitation (CR) participation are well documented, the role of community-level distress is poorly understood. This study evaluated the relationship between community-level distress and CR participation, access to CR facilities, and clinical outcomes. METHODS A retrospective cohort study was conducted on a 100% sample of Medicare beneficiaries undergoing inpatient coronary revascularization between July 2016 and December 2018. Community-level distress was defined using the Distressed Community Index quintile at the beneficiary zip code level, with the first and fifth quintiles representing prosperous and distressed communities, respectively. Outpatient claims were used to identify any CR use within 1 year of discharge. Beneficiary and CR facility zip codes were used to describe access to CR facilities. Adjusted logistic regression models evaluated the association between Distressed Community Index quintiles, CR use, and clinical outcomes, including one-year mortality, all-cause hospitalization, and acute myocardial infarction hospitalization. RESULTS A total of 414 730 beneficiaries were identified, with 96 929 (23.4%) located in the first and 67 900 (16.4%) in the fifth quintiles, respectively. Any CR use was lower for beneficiaries in distressed compared with prosperous communities (26.0% versus 46.1%, P<0.001), which was significant after multivariable adjustment (odds ratio, 0.41 [95% CI, 0.40-0.42]). A total of 98 458 (23.7%) beneficiaries had a CR facility within their zip code, which increased from 16.3% in prosperous communities to 26.6% in distressed communities. Any CR use was associated with absolute reductions in mortality (-6.8% [95% CI, -7.0% to -6.7%]), all-cause hospitalization (-5.9% [95% CI, -6.3% to -5.6%]), and acute myocardial infarction hospitalization (-1.3% [95% CI, -1.5% to -1.1%]), which were similar across each Distressed Community Index quintiles. CONCLUSIONS Although community-level distress was associated with lower CR participation, the clinical benefits were universally received. Addressing barriers to CR in distressed communities should be considered a significant priority to improve survival after coronary revascularization and reduce disparities.
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Affiliation(s)
| | - Hechuan Hou
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, MI
| | - James W Stewart
- Department of Surgery, Yale School of Medicine, New Haven, CT
| | | | | | | | - Devraj Sukul
- Division of Cardiovascular Medicine, Department of Internal Medicine, Michigan Medicine, Ann Arbor, MI
| | - Donald S Likosky
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, MI
- Center for Healthcare Outcomes and Policy, University of Michigan, Ann Arbor, MI
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Amabile A, Geirsson A. Commentary: Persistent racial disparity in myocardial revascularization: A call to action. J Thorac Cardiovasc Surg 2023; 166:1097-1098. [PMID: 35249757 DOI: 10.1016/j.jtcvs.2022.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 02/06/2022] [Accepted: 02/07/2022] [Indexed: 10/19/2022]
Affiliation(s)
- Andrea Amabile
- Division of Cardiac Surgery, Department of Surgery, Yale School of Medicine, New Haven, Conn
| | - Arnar Geirsson
- Division of Cardiac Surgery, Department of Surgery, Yale School of Medicine, New Haven, Conn.
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Thompson MP, Stewart JW, Hou H, Nathan H, Pagani FD, DeLucia A, Theurer P, Prager RL, Hawkins RB, Likosky DS. Determinants and Outcomes Associated With Skilled Nursing Facility Use After Coronary Artery Bypass Grafting: A Statewide Experience. Circ Cardiovasc Qual Outcomes 2023; 16:e009639. [PMID: 37702050 PMCID: PMC10979415 DOI: 10.1161/circoutcomes.122.009639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 07/26/2023] [Indexed: 09/14/2023]
Abstract
BACKGROUND Skilled nursing facility (SNF) care is frequently used after cardiac surgery, but the patterns and determinants of use have not been well understood. The objective of this study was to evaluate determinants and outcomes associated with SNF use after isolated coronary artery bypass grafting. METHODS A retrospective analysis of Medicare Fee-For-Service claims linked to the Society of Thoracic Surgeons clinical data was conducted on isolated coronary artery bypass grafting patients without prior SNF use in Michigan between 2011 and 2019. Descriptive analysis evaluated the frequency, trends, and variation in SNF use across 33 Michigan hospitals. Multivariable mixed-effects regression was used to evaluate patient-level demographic and clinical determinants of SNF use and its effect on short- and long-term outcomes. RESULTS In our sample of 8614 patients, the average age was 73.3 years, 70.5% were male, and 7.7% were listed as non-White race. An SNF was utilized by 1920 (22.3%) patients within 90 days of discharge and varied from 3.2% to 58.3% across the 33 hospitals. Patients using SNFs were more likely to be female, older, non-White, with more comorbidities, worse cardiovascular function, a perioperative morbidity, and longer hospital lengths of stay. Outcomes were significantly worse for SNF users, including more frequent 90-day readmissions and emergency department visits and less use of home health and rehabilitation services. SNF users had higher risk-adjusted hazard of mortality (hazard ratio, 1.41 [95% CI, 1.26-1.57]; P<0.001) compared with non-SNF users and had 2.7-percentage point higher 5-year mortality rate in a propensity-matched cohort of patients (18.1% versus 15.4%; P<0.001). CONCLUSIONS The use of SNF care after isolated coronary artery bypass grafting was frequent and variable across Michigan hospitals and associated with worse risk-adjusted outcomes. Standardization of criteria for SNF use may reduce variability among hospitals and ensure appropriateness of use.
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Affiliation(s)
- Michael P. Thompson
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, MI, USA
- Michigan Value Collaborative, Ann Arbor, MI, USA
| | - James W. Stewart
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, MI, USA
| | - Hechuan Hou
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, MI, USA
| | - Hari Nathan
- Michigan Value Collaborative, Ann Arbor, MI, USA
- Department of Surgery, Michigan Medicine, Ann Arbor, MI, USA
| | - Francis D. Pagani
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, MI, USA
- Michigan Society of Thoracic and Cardiovascular Surgeons Quality Collaborative, Ann Arbor, MI, USA
| | - Alphonse DeLucia
- Department of Cardiac Surgery, Bronson Methodist Hospital, Kalamazoo, MI
| | - Patricia Theurer
- Michigan Society of Thoracic and Cardiovascular Surgeons Quality Collaborative, Ann Arbor, MI, USA
| | - Richard L. Prager
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, MI, USA
- Michigan Society of Thoracic and Cardiovascular Surgeons Quality Collaborative, Ann Arbor, MI, USA
| | - Robert B. Hawkins
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, MI, USA
| | - Donald S. Likosky
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, MI, USA
- Michigan Society of Thoracic and Cardiovascular Surgeons Quality Collaborative, Ann Arbor, MI, USA
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Fisher Z, Hughes G, Staggs J, Moore T, Kinder N, Vassar M. Health Inequities in Coronary Artery Bypass Grafting Literature: A Scoping Review. Curr Probl Cardiol 2023; 48:101640. [PMID: 36792023 DOI: 10.1016/j.cpcardiol.2023.101640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 02/04/2023] [Indexed: 02/15/2023]
Abstract
Although life saving, health inequities exist regarding access and patient outcomes in Coronary artery bypass grafting (CABG), especially among marginalized groups. This scoping review's goal is to outline existing literature and highlight gaps for future research. Researchers followed guidance from the Joanna Briggs Institute and PRISMA extension for scoping reviews. We conducted a search to identify articles published between 2016 and 2022 regarding CABG and inequity groups, defined by the National Institutes of Health. Fifty-seven articles were included in our final sample. Race/Ethnicity was examined in 39 incidences, Sex or Gender 29 times, Income 17 instances, Geography 10 instances, and Education Level 3 instances. Occupation Status 2 instances, and LGBTQ+ 0 times. Important disparities exist regarding CABG access and outcomes, especially involving members of the LGBTQ+, Native American, and Black communities. Further research is needed to address health disparities and their root causes for focused action and improved health of minoritized groups.
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Affiliation(s)
- Zachariah Fisher
- Office of Medical Student Research, Oklahoma State University Center for Health Sciences, Tulsa, OK.
| | - Griffin Hughes
- Office of Medical Student Research, Oklahoma State University Center for Health Sciences, Tulsa, OK
| | - Jordan Staggs
- Office of Medical Student Research, Oklahoma State University Center for Health Sciences, Tulsa, OK
| | - Ty Moore
- Office of Medical Student Research, Oklahoma State University Center for Health Sciences, Tulsa, OK
| | | | - Matt Vassar
- Office of Medical Student Research, Oklahoma State University Center for Health Sciences, Tulsa, OK
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Fliegner M, Yaser JM, Stewart J, Nathan H, Likosky DS, Theurer PF, Clark MJ, Prager RL, Thompson MP. Area Deprivation and Medicare Spending for Coronary Artery Bypass Grafting: Insights from Michigan. Ann Thorac Surg 2022; 114:1291-1297. [PMID: 35300953 DOI: 10.1016/j.athoracsur.2022.02.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 02/16/2022] [Accepted: 02/22/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Prior work has established that high socioeconomic deprivation is associated with worse short- and long-term outcomes for coronary artery bypass graft (CABG) patients. The relationship between socioeconomic status and 90-day episode spending is poorly understood. In this observational cohort analysis, we evaluated whether socioeconomically disadvantaged patients were associated with higher expenditures during 90-day episodes of care following isolated CABG. METHODS We linked clinical registry data from 8,728 isolated CABG procedures from January 1st, 2012 to December 31st, 2018 to Medicare fee-for-service claims data. Our primary exposure variable was patients in the top decile of the Area Deprivation Index. Linear regression was used to compare risk-adjusted, price-standardized 90-day episode spending for deprived against non-deprived patients, as well as component spending categories: index hospitalization, professional services, post-acute care, and readmissions. RESULTS A total of 872 patients were categorized as being in the top decile. Mean 90-day episode spending for the 8,728 patients in the sample was $55,258 (standard deviation = $26,252). Socioeconomically deprived patients had higher overall 90-day spending compared to non-deprived patients ($61,579 vs. $54,557, difference = $3,003, p = 0.001). Spending was higher in socioeconomically deprived patients for index hospitalizations (difference = $1,284, p = 0.005), professional services (difference = $379, p = 0.002) and readmissions (difference = $1,188, p = 0.008). Inpatient rehabilitation was the only significant difference in post-acute care spending (difference = $469, p = 0.011). CONCLUSIONS Medicare spending was higher for socioeconomically deprived CABG in Michigan, indicating systemic disparities over and above patient demographic factors.
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Affiliation(s)
- Maximilian Fliegner
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, Michigan; Oakland University William Beaumont School of Medicine, Auburn Hills, Michigan
| | | | - James Stewart
- VA Ann Arbor Healthcare System, Ann Arbor, Michigan; Department of Surgery, Michigan Medicine, Ann Arbor, Michigan Division of Cardiovascular Medicine, Michigan Medicine, Ann Arbor, Michigan
| | - Hari Nathan
- Michigan Value Collaborative, Ann Arbor, Michigan; Department of Surgery, Michigan Medicine, Ann Arbor, Michigan Division of Cardiovascular Medicine, Michigan Medicine, Ann Arbor, Michigan
| | - Donald S Likosky
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, Michigan; Michigan Society of Thoracic and Cardiovascular Surgeons Quality Collaborative, Ann Arbor, Michigan; Michigan Value Collaborative, Ann Arbor, Michigan; Department of Surgery, Michigan Medicine, Ann Arbor, Michigan Division of Cardiovascular Medicine, Michigan Medicine, Ann Arbor, Michigan
| | - Patricia F Theurer
- Michigan Society of Thoracic and Cardiovascular Surgeons Quality Collaborative, Ann Arbor, Michigan
| | - Melissa J Clark
- Michigan Society of Thoracic and Cardiovascular Surgeons Quality Collaborative, Ann Arbor, Michigan
| | - Richard L Prager
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, Michigan; Michigan Society of Thoracic and Cardiovascular Surgeons Quality Collaborative, Ann Arbor, Michigan
| | - Michael P Thompson
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, Michigan; Michigan Value Collaborative, Ann Arbor, Michigan.
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