573,785 items of data are available, covering 501,625 participants, encoded using Data-Coding 100335
Defined-instances run from 0 to 3, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,608 participants, 501,608 items
Instance 1 : First repeat assessment visit (2012-13)
20,335 participants, 20,335 items
Instance 2 : Imaging visit (2014+)
48,642 participants, 48,642 items
Instance 3 : First repeat imaging visit (2019+)
3,200 participants, 3,200 items
ACE touchscreen question "For approximately how many years have you been using a mobile phone at least once per week to make or receive calls?"
If the participant activated the Help button they were shown the message:
|Do not include time spent text messaging.|
If you are unsure, please provide an estimate or select Do not know.
There are no tabulations involving field 1110.
Registered researchers may, when logged in, request that new analyses be generated and displayed here.