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

Participants382,658 Value TypeDate SexedBoth sexes DebutJul 2015
Item count674,703Item TypeDataInstancesDefined (2)VersionAug 2023
StabilityCompleteStrataPrimaryArrayNoCost Tierd1 o1 s1