565,664 items of data are available, covering 501,656 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
501,640 participants, 501,640 items
Instance 1 : First repeat assessment visit (2012-13)
20,337 participants, 20,337 items
Instance 2 : Imaging visit (2014+)
42,861 participants, 42,861 items
Instance 3 : First repeat imaging visit (2018+)
826 participants, 826 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.