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October 12, 2021; 97 (15) Research Article

Association of Neighborhood-Level Material Deprivation With Health Care Costs and Outcome After Stroke

View ORCID ProfileAmy Y.X. Yu, View ORCID ProfileEric E. Smith, Murray Krahn, Peter C. Austin, Mohammed Rashid, Jiming Fang, Joan Porter, View ORCID ProfileManav V. Vyas, Susan E. Bronskill, Richard H. Swartz, View ORCID ProfileMoira K. Kapral
First published August 18, 2021, DOI: https://doi.org/10.1212/WNL.0000000000012676
Amy Y.X. Yu
From the Department of Medicine (Neurology), Sunnybrook Health Sciences Centre (A.Y.X.Y., M.V.V., R.H.S.), and Institute of Health Policy, Management, and Evaluation (A.Y.X.Y., M.K., P.C.A., M.V.V., S.E.B., M.K.K.), University of Toronto; ICES (A.Y.X.Y., M.K., P.C.A., M.R., J.F., J.P., M.V.V., S.E.B., R.H.S., M.K.K.), Toronto; Department of Clinical Neurosciences, Community Health Sciences, and Hotchkiss Brain Institute (E.E.S.), University of Calgary; Department of Medicine (General Internal Medicine) (M.K., M.K.K.), University of Toronto-University Health Network; and Toronto Health Economics and Technology Assessment (M.K.), Canada.
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Eric E. Smith
From the Department of Medicine (Neurology), Sunnybrook Health Sciences Centre (A.Y.X.Y., M.V.V., R.H.S.), and Institute of Health Policy, Management, and Evaluation (A.Y.X.Y., M.K., P.C.A., M.V.V., S.E.B., M.K.K.), University of Toronto; ICES (A.Y.X.Y., M.K., P.C.A., M.R., J.F., J.P., M.V.V., S.E.B., R.H.S., M.K.K.), Toronto; Department of Clinical Neurosciences, Community Health Sciences, and Hotchkiss Brain Institute (E.E.S.), University of Calgary; Department of Medicine (General Internal Medicine) (M.K., M.K.K.), University of Toronto-University Health Network; and Toronto Health Economics and Technology Assessment (M.K.), Canada.
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Murray Krahn
From the Department of Medicine (Neurology), Sunnybrook Health Sciences Centre (A.Y.X.Y., M.V.V., R.H.S.), and Institute of Health Policy, Management, and Evaluation (A.Y.X.Y., M.K., P.C.A., M.V.V., S.E.B., M.K.K.), University of Toronto; ICES (A.Y.X.Y., M.K., P.C.A., M.R., J.F., J.P., M.V.V., S.E.B., R.H.S., M.K.K.), Toronto; Department of Clinical Neurosciences, Community Health Sciences, and Hotchkiss Brain Institute (E.E.S.), University of Calgary; Department of Medicine (General Internal Medicine) (M.K., M.K.K.), University of Toronto-University Health Network; and Toronto Health Economics and Technology Assessment (M.K.), Canada.
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Peter C. Austin
From the Department of Medicine (Neurology), Sunnybrook Health Sciences Centre (A.Y.X.Y., M.V.V., R.H.S.), and Institute of Health Policy, Management, and Evaluation (A.Y.X.Y., M.K., P.C.A., M.V.V., S.E.B., M.K.K.), University of Toronto; ICES (A.Y.X.Y., M.K., P.C.A., M.R., J.F., J.P., M.V.V., S.E.B., R.H.S., M.K.K.), Toronto; Department of Clinical Neurosciences, Community Health Sciences, and Hotchkiss Brain Institute (E.E.S.), University of Calgary; Department of Medicine (General Internal Medicine) (M.K., M.K.K.), University of Toronto-University Health Network; and Toronto Health Economics and Technology Assessment (M.K.), Canada.
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Mohammed Rashid
From the Department of Medicine (Neurology), Sunnybrook Health Sciences Centre (A.Y.X.Y., M.V.V., R.H.S.), and Institute of Health Policy, Management, and Evaluation (A.Y.X.Y., M.K., P.C.A., M.V.V., S.E.B., M.K.K.), University of Toronto; ICES (A.Y.X.Y., M.K., P.C.A., M.R., J.F., J.P., M.V.V., S.E.B., R.H.S., M.K.K.), Toronto; Department of Clinical Neurosciences, Community Health Sciences, and Hotchkiss Brain Institute (E.E.S.), University of Calgary; Department of Medicine (General Internal Medicine) (M.K., M.K.K.), University of Toronto-University Health Network; and Toronto Health Economics and Technology Assessment (M.K.), Canada.
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Jiming Fang
From the Department of Medicine (Neurology), Sunnybrook Health Sciences Centre (A.Y.X.Y., M.V.V., R.H.S.), and Institute of Health Policy, Management, and Evaluation (A.Y.X.Y., M.K., P.C.A., M.V.V., S.E.B., M.K.K.), University of Toronto; ICES (A.Y.X.Y., M.K., P.C.A., M.R., J.F., J.P., M.V.V., S.E.B., R.H.S., M.K.K.), Toronto; Department of Clinical Neurosciences, Community Health Sciences, and Hotchkiss Brain Institute (E.E.S.), University of Calgary; Department of Medicine (General Internal Medicine) (M.K., M.K.K.), University of Toronto-University Health Network; and Toronto Health Economics and Technology Assessment (M.K.), Canada.
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Joan Porter
From the Department of Medicine (Neurology), Sunnybrook Health Sciences Centre (A.Y.X.Y., M.V.V., R.H.S.), and Institute of Health Policy, Management, and Evaluation (A.Y.X.Y., M.K., P.C.A., M.V.V., S.E.B., M.K.K.), University of Toronto; ICES (A.Y.X.Y., M.K., P.C.A., M.R., J.F., J.P., M.V.V., S.E.B., R.H.S., M.K.K.), Toronto; Department of Clinical Neurosciences, Community Health Sciences, and Hotchkiss Brain Institute (E.E.S.), University of Calgary; Department of Medicine (General Internal Medicine) (M.K., M.K.K.), University of Toronto-University Health Network; and Toronto Health Economics and Technology Assessment (M.K.), Canada.
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Manav V. Vyas
From the Department of Medicine (Neurology), Sunnybrook Health Sciences Centre (A.Y.X.Y., M.V.V., R.H.S.), and Institute of Health Policy, Management, and Evaluation (A.Y.X.Y., M.K., P.C.A., M.V.V., S.E.B., M.K.K.), University of Toronto; ICES (A.Y.X.Y., M.K., P.C.A., M.R., J.F., J.P., M.V.V., S.E.B., R.H.S., M.K.K.), Toronto; Department of Clinical Neurosciences, Community Health Sciences, and Hotchkiss Brain Institute (E.E.S.), University of Calgary; Department of Medicine (General Internal Medicine) (M.K., M.K.K.), University of Toronto-University Health Network; and Toronto Health Economics and Technology Assessment (M.K.), Canada.
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Susan E. Bronskill
From the Department of Medicine (Neurology), Sunnybrook Health Sciences Centre (A.Y.X.Y., M.V.V., R.H.S.), and Institute of Health Policy, Management, and Evaluation (A.Y.X.Y., M.K., P.C.A., M.V.V., S.E.B., M.K.K.), University of Toronto; ICES (A.Y.X.Y., M.K., P.C.A., M.R., J.F., J.P., M.V.V., S.E.B., R.H.S., M.K.K.), Toronto; Department of Clinical Neurosciences, Community Health Sciences, and Hotchkiss Brain Institute (E.E.S.), University of Calgary; Department of Medicine (General Internal Medicine) (M.K., M.K.K.), University of Toronto-University Health Network; and Toronto Health Economics and Technology Assessment (M.K.), Canada.
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Richard H. Swartz
From the Department of Medicine (Neurology), Sunnybrook Health Sciences Centre (A.Y.X.Y., M.V.V., R.H.S.), and Institute of Health Policy, Management, and Evaluation (A.Y.X.Y., M.K., P.C.A., M.V.V., S.E.B., M.K.K.), University of Toronto; ICES (A.Y.X.Y., M.K., P.C.A., M.R., J.F., J.P., M.V.V., S.E.B., R.H.S., M.K.K.), Toronto; Department of Clinical Neurosciences, Community Health Sciences, and Hotchkiss Brain Institute (E.E.S.), University of Calgary; Department of Medicine (General Internal Medicine) (M.K., M.K.K.), University of Toronto-University Health Network; and Toronto Health Economics and Technology Assessment (M.K.), Canada.
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Moira K. Kapral
From the Department of Medicine (Neurology), Sunnybrook Health Sciences Centre (A.Y.X.Y., M.V.V., R.H.S.), and Institute of Health Policy, Management, and Evaluation (A.Y.X.Y., M.K., P.C.A., M.V.V., S.E.B., M.K.K.), University of Toronto; ICES (A.Y.X.Y., M.K., P.C.A., M.R., J.F., J.P., M.V.V., S.E.B., R.H.S., M.K.K.), Toronto; Department of Clinical Neurosciences, Community Health Sciences, and Hotchkiss Brain Institute (E.E.S.), University of Calgary; Department of Medicine (General Internal Medicine) (M.K., M.K.K.), University of Toronto-University Health Network; and Toronto Health Economics and Technology Assessment (M.K.), Canada.
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Association of Neighborhood-Level Material Deprivation With Health Care Costs and Outcome After Stroke
Amy Y.X. Yu, Eric E. Smith, Murray Krahn, Peter C. Austin, Mohammed Rashid, Jiming Fang, Joan Porter, Manav V. Vyas, Susan E. Bronskill, Richard H. Swartz, Moira K. Kapral
Neurology Oct 2021, 97 (15) e1503-e1511; DOI: 10.1212/WNL.0000000000012676

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Abstract

Background and Objectives To determine the association between material deprivation and direct health care costs and clinical outcomes following stroke in the context of a publicly funded universal health care system.

Methods In this population-based cohort study of patients with ischemic and hemorrhagic stroke admitted to the hospital between 2008 and 2017 in Ontario, Canada, we used linked administrative data to identify the cohort, predictor variables, and outcomes. The exposure was a 5-level neighborhood material deprivation index. The primary outcome was direct health care costs incurred by the public payer in the first year. Secondary outcomes were death and admission to long-term care.

Results Among 90,289 patients with stroke, the mean (SD) per-person costs increased with increasing material deprivation, from $50,602 ($55,582) in the least deprived quintile to $56,292 ($59,721) in the most deprived quintile (unadjusted relative cost ratio and 95% confidence interval 1.11 [1.08, 1.13] and adjusted relative cost ratio 1.07 [1.05, 1.10] for least compared to most deprived quintile). People in the most deprived quintile had higher mortality within 1 year compared to the least deprived quintile (adjusted hazard ratio [HR] 1.07 [1.03, 1.12]) as well as within 3 years (adjusted HR 1.09 [1.05, 1.13]). Admission to long-term care increased incrementally with material deprivation and those in the most deprived quintile had an adjusted HR of 1.33 (1.24, 1.43) compared to those in the least deprived quintile.

Discussion Material deprivation is a risk factor for increased costs and poor outcomes after stroke. Interventions targeting health inequities due to social determinants of health are needed.

Classification of Evidence This study provides Class II evidence that the neighborhood-level material deprivation predicts direct health care costs.

Glossary

CI=
confidence interval;
HR=
hazard ratio

Footnotes

  • Go to Neurology.org/N for full disclosures. Funding information and disclosures deemed relevant by the authors, if any, are provided at the end of the article.

  • Class of Evidence: NPub.org/coe

  • Infographic: http://links.lww.com/WNL/B545

  • Received January 11, 2021.
  • Accepted in final form July 26, 2021.
  • © 2021 American Academy of Neurology
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