Data
177,918 items of data are available, covering 145,745 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
137,379 participants, 137,379 items
Instance 1 : First repeat assessment visit (2012-13)
5,726 participants, 5,726 items
Instance 2 : Imaging visit (2014+)
29,112 participants, 29,112 items
Instance 3 : First repeat imaging visit (2019+)
5,701 participants, 5,701 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