<p> </p><u><b>Cohort Description</b></u><br>The REasons for Geographic and Racial Differences in Stroke (REGARDS) cohort is one of the nation's largest, most comprehensive population-based cohorts, and it uses innovative home- and telephone-based data collection. REGARDS centrally recruited and initially examined 30,239 Black and White men and women aged ≥45 years in 2003-7 to understand why Southerners and Black Americans have a higher incidence of stroke and related diseases that affect brain health.<br><u><br><b>Data Being Submitted </b></u> <div>Wave 1 questionnaire data includes 397 variables for 8109 REGARDS participants in C4R. </div><div>Wave 2 questionnaire data includes 448 variables for 6421 REGARDS participants in C4R. </div><div>Dried Blood Spot/Serosurvey data includes 7 variables for 4058 REGARDS participants in C4R. </div><div>Derived data includes 43 variables for 8606 REGARDS participants in C4R. </div><div>Phenotype data includes 113 variables for 7880 REGARDS participants in C4R. </div><br><div></div>

Collaborative Cohort of Cohorts for COVID-19 Research (C4R): REasons for Geographic and Racial Differences in Stroke (REGARDS)

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