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The Harmonized ELSA-HCAP is a streamlined collection of variables derived from the Harmonized Cognitive Assessment Protocol (HCAP) interview of English Longitudinal Survey of Ageing (ELSA). Documentation for each variable in Harmonized ELSA-HCAP, including a description of its creation, the ELSA-HCAP variables used, and descriptive statistics, is detailed in the Harmonized ELSA-HCAP codebook.

Section A: Demographics and Identifiers
Section B: Cognition
Section C: Informant Report
Section D: Health & Physical Measures
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