Data
162,934 items of data are available, covering 142,851 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
137,507 participants, 137,507 items
Instance 1 : First repeat assessment visit (2012-13)
5,730 participants, 5,730 items
Instance 2 : Imaging visit (2014+)
18,244 participants, 18,244 items
Instance 3 : First repeat imaging visit (2019+)
1,453 participants, 1,453 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