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. 2022 Apr 21;19:E20. doi: 10.5888/pcd19.210195

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Preventing Chronic Disease is a publication of the U.S. Government. This publication is in the public domain and is therefore without copyright. All text from this work may be reprinted freely. Use of these materials should be properly cited.

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The REGARDS study sample had 30,239 participants. We excluded those with consent errors (n = 56), a baseline history of stroke or CHD (n = 6,624), missing or invalid zip code (n = 8), missing values for waist circumference (n = 137), or erroneous values for waist circumference (n = 18), and participants lost to follow up (n = 354). — Exclusions in analytic sample for the REasons for Geographic and Racial Differences in Stroke (REGARDS) Study.