Data-Field 20082
Description:Duration of questionnaire
Category:Online follow-upDiet by 24-hour recallDiet questionnaire performance
Diet and alcohol summary + Lifestyle

Participants210,847 Value TypeInteger, minutes SexedBoth sexes DebutSep 2012
Item count458,219Item TypeDataInstancesDefined (5)VersionSep 2012
StabilityCompleteStrataDerivedArrayNoCost Tier1