488,872 items of data are available, covering 428,908 participants, encoded using Data-Coding 100338
Defined-instances run from 0 to 3, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
423,318 participants, 423,318 items
Instance 1 : First repeat assessment visit (2012-13)
17,567 participants, 17,567 items
Instance 2 : Imaging visit (2014+)
44,748 participants, 44,748 items
Instance 3 : First repeat imaging visit (2019+)
3,239 participants, 3,239 items
ACE touchscreen question "Is there any difference between your mobile phone use now compared to two years ago?"
If the participant activated the Help button they were shown the message:
|If you are unsure, please provide an estimate or select Do not know.|
Field 1140 was collected from participants who indicated they have used a mobile phone at least once per week in the past or do not know whether they have used or not, as defined by their answers to Field 1110
There are no tabulations involving field 1140.
Registered researchers may, when logged in, request that new analyses be generated and displayed here.