Data
159,794 items of data are available, covering 142,142 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
137,526 participants, 137,526 items
Instance 1 : First repeat assessment visit (2012-13)
5,730 participants, 5,730 items
Instance 2 : Imaging visit (2014+)
15,109 participants, 15,109 items
Instance 3 : First repeat imaging visit (2019+)
1,429 participants, 1,429 items
Notes
ACE touchscreen question "In your lifetime, have you smoked a total of at least 100 times?"
Field 2644 was collected from participants who indicated they smoked occasionally or Just tried once or twice, as defined by their answers to Field 1249