Data
569,457 items of data are available, covering 462,141 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
458,696 participants, 458,696 items
Instance 1 : First repeat assessment visit (2012-13)
19,681 participants, 19,681 items
Instance 2 : Imaging visit (2014+)
82,383 participants, 82,383 items
Instance 3 : First repeat imaging visit (2019+)
8,697 participants, 8,697 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