Data
559,218 items of data are available, covering 462,031 participants, encoded using Data-Coding
100370.
Defined-instances run from 0 to 3, labelled using Instancing
2.
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
458,867 participants, 458,867 items
Instance 1 : First repeat assessment visit (2012-13)
19,685 participants, 19,685 items
Instance 2 : Imaging visit (2014+)
73,807 participants, 73,807 items
Instance 3 : First repeat imaging visit (2019+)
6,859 participants, 6,859 items
Notes
ACE touchscreen question "Does anyone in your household smoke?"
Field 1259 was collected from all participants except those who indicated they currently smoke tobacco on most or all days, as defined by their answers to Field 1239