Data
533,881 items of data are available, covering 461,252 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
458,922 participants, 458,922 items
Instance 1 : First repeat assessment visit (2012-13)
19,686 participants, 19,686 items
Instance 2 : Imaging visit (2014+)
50,071 participants, 50,071 items
Instance 3 : First repeat imaging visit (2019+)
5,202 participants, 5,202 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