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Where You Live May Be Associated with More Successful Stroke Recovery

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02/02/2024
medicalxpress.com
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Stroke survivors living in areas with poor economic conditions were twice as likely to have a poor recovery compared to survivors living in areas with better conditions, according to a preliminary study to be presented at the American Stroke Association's International Stroke Conference 2024. The meeting will be held in Phoenix, Feb. 7-9.

"This research was inspired by the people I work with daily," said Leah Kleinberg, B.A., a postgraduate clinical research associate in the Falcone Lab in the department of neurology at Yale School of Medicine in New Haven, Connecticut. "Although stroke patients from differing socioeconomic backgrounds often have similar functional status at discharge, outcomes can vary dramatically a year later. As a clinical research associate, I get to interact with them far beyond the completion of their urgent treatment, which sparked my interest in exploring the long-term outcomes for these patients."

Kleinberg and her colleagues found a significant correlation between functional outcomes after a stroke and the socioeconomic factors noted by census blocks.

"The magnitude of this impact is what was most surprising. We did not expect a large disparity in outcomes, yet we found patients in the most economically disadvantaged areas were twice as likely to have unfavorable outcomes compared to patients in areas with less unemployment, better housing quality and higher income and education levels," she said.

In this study, researchers used data from Yale's Longitudinal Study of Acute Brain Injury and Area Deprivation Index (ADI) rates for the 2020 U.S. Census blocks to compare outcomes among stroke survivors by socioeconomic disadvantage factors. The ADI evaluates a neighborhood on levels of income, education, employment and housing quality and is specific to each zip code. It was developed by the U.S. Health Resources & Services Administration to inform health care delivery and policy for disadvantaged areas.

This analysis found:

  • Among 2,164 people with ischemic (clot-caused) stroke, the one-year unadjusted risk of poor outcomes was 35%, 40% and 46% for patients residing in neighborhoods with low, intermediate and high deprivation, respectively.
  • After considering the inability of the ADI to specifically measure each level of deprivation, researchers determined that those living in intermediate and high deprivation areas had 44% and 107% greater risk, respectively, of unfavorable outcomes, compared to patients living in neighborhoods with low deprivation levels.
  • The patients in the poor outcomes category were unable to look after their own affairs without assistance and required some help in daily activities. In the good outcomes category, patients could live independently, though some might have had residual symptoms or disability.

"We hope this study will help promote awareness of how social determinants of health are as important as clinical variables and health information when trying to identify patients who are particularly high risk for poor long-term outcomes," she said.

Study details:

  • The Yale Longitudinal Study follows stroke survivors admitted to the Yale Health System, collecting outcome data at 3 months, 6 months and then yearly after hospital discharge. Zip code data was available for 2,164 patients enrolled in the Yale Longitudinal Study between 2018 and 2021. The average age was 69; 48% were women; 7.5% were Black adults and 7.7% were Hispanic adults.
  • Stroke outcomes were determined by trained assessors using the modified Rankin Scale, which measures disability severity after stroke on a scale of 0-6, from no disability (able to carry out all daily living tasks and duties without assistance) to severe disability (bedridden, incontinent, requiring constant nursing care and attention).

Citation: Where you live may be associated with more successful stroke recovery (2024, February 1) retrieved 1 February 2024 from https://medicalxpress.com/news/2024-02-successful-recovery.html

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Schedule26 May 2024