Data
166,478 items of data are available, covering 143,647 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
137,503 participants, 137,503 items
Instance 1 : First repeat assessment visit (2012-13)
5,729 participants, 5,729 items
Instance 2 : Imaging visit (2014+)
21,355 participants, 21,355 items
Instance 3 : First repeat imaging visit (2019+)
1,891 participants, 1,891 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