40,951 items of data are available, covering 39,518 participants, encoded using Data-Coding 100351
Defined-instances run from 0 to 3, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
39,240 participants, 39,240 items
Instance 1 : First repeat assessment visit (2012-13)
648 participants, 648 items
Instance 2 : Imaging visit (2014+)
1,008 participants, 1,008 items
Instance 3 : First repeat imaging visit (2019+)
55 participants, 55 items
ACE touchscreen question "What type of tobacco do you mainly smoke?"
If the participant activated the Help button they were shown the message:
|If you smoke cigarettes and cigars and pipes, please select the|
type of cigarette you smoke.
If you smoke both hand-rolled and manufactured cigarettes select
the one that you smoke more of.
Field 3446 was collected from participants who indicated they currently smoke tobacco on most or all days, as defined by their answers to Field 1239