Data-Field 22017
Description:When invitation to complete online cognitive function questionnaire sent
Category:Online follow-upCognitive function online
Communication and participation in extension studies + Cognitive function

Participants382,490 Value TypeDate SexedBoth sexes DebutJul 2015
Item count674,403Item TypeDataInstancesDefined (2)VersionAug 2023
StabilityCompleteStrataPrimaryArrayNoCost Tier1