37,665 items of data are available, covering 36,384 participants, encoded using Data-Coding 100356
Defined-instances run from 0 to 3, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
36,114 participants, 36,114 items
Instance 1 : First repeat assessment visit (2012-13)
580 participants, 580 items
Instance 2 : Imaging visit (2014+)
922 participants, 922 items
Instance 3 : First repeat imaging visit (2019+)
49 participants, 49 items
ACE touchscreen question "How soon after waking do you smoke your first cigarette of the day?"
Field 3466 was collected from participants who indicated they currently smoke tobacco on most or all days, as defined by their answers to Field 1239 and currently smoke manufactured or hand-rolled cigarettes, as defined by their answers to Field 1239
Please note that the categories do not include a response for 15-30 minutes. This occurred due to an oversight during the design of the initial data collection process. However we have kept the response options the same during subsequent data collection exercises to maintain consistency for analytical purposes.
2 Related Data-Fields
|1239||Current tobacco smoking||Field 1239 affects who was asked to answer Current Field|
|3446||Type of tobacco currently smoked||Field 3446 affects who was asked to answer Current Field|