Data
146,256 items of data are available, covering 124,248 participants, encoded using Data-Coding
100349.
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
119,964 participants, 119,964 items
Instance 1 : First repeat assessment visit (2012-13)
5,066 participants, 5,066 items
Instance 2 : Imaging visit (2014+)
19,291 participants, 19,291 items
Instance 3 : First repeat imaging visit (2019+)
1,935 participants, 1,935 items
Notes
ACE touchscreen question "In the time that you smoked, did you ever stop for more than 6 months?"
Field 2907 was collected from participants who indicated that in the past they smoked tobacco on most or all days, as defined by their answers to Field 1249