Data
552,928 items of data are available, covering 461,855 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
458,874 participants, 458,874 items
Instance 1 : First repeat assessment visit (2012-13)
19,686 participants, 19,686 items
Instance 2 : Imaging visit (2014+)
68,447 participants, 68,447 items
Instance 3 : First repeat imaging visit (2019+)
5,921 participants, 5,921 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