Association between Heat Vulnerability Index and Stroke Severity

Jason J. Wang (), Jeffrey M. Katz, Maria X. Sanmartin, Liron D. Sinvani, Jason J. Naidich, Elizabeth Y. Rula and Pina C. Sanelli
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Jason J. Wang: Northwell Health, New Hyde Park, NY 11040, USA
Jeffrey M. Katz: Northwell Health, New Hyde Park, NY 11040, USA
Maria X. Sanmartin: Northwell Health, New Hyde Park, NY 11040, USA
Liron D. Sinvani: Northwell Health, New Hyde Park, NY 11040, USA
Jason J. Naidich: Northwell Health, New Hyde Park, NY 11040, USA
Elizabeth Y. Rula: Harvey L. Neiman Health Policy Institute, Reston, VA 20191, USA
Pina C. Sanelli: Northwell Health, New Hyde Park, NY 11040, USA

IJERPH, 2024, vol. 21, issue 8, 1-8

Abstract: Background: Socioeconomically disadvantaged neighborhoods are particularly vulnerable to heat-related illnesses. We aim to investigate the association between the heat vulnerability index (HVI), an established neighborhood-level metric of heat-related mortality risk, and acute ischemic stroke (AIS) severity. Methods: We conducted a retrospective analysis of consecutive AIS admissions to a comprehensive stroke center between 2012 and 2021. Stroke severity was defined upon admission based on the National Institutes of Health Stroke Scale (NIHSS). Demographic, socioeconomic, and clinical characteristics were extracted from electronic health records. HVI status was assigned using residential ZIP codes. Multivariable logistic regression analyses were performed. Results: Of 3429 AIS admissions, 1123 (32.8%) were from high-HVI (scores 4–5) neighborhoods and 868 (25.3%) had severe stroke (NIHSS score ≥ 10). In the multivariable regression model with stepwise selection, a high HVI was independently associated with severe stroke (adjusted odds ratio: 1.40 [95% confidence interval 1.16–1.69]). Conclusions: The association between a high HVI and severe stroke underscores the importance of targeting policy interventions to mitigate heat-related illness in socioeconomically disadvantaged neighborhoods.

Keywords: heat vulnerability index; stroke severity; acute ischemic stroke (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2024
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