488,235 items of data are available, covering 428,884 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
423,335 participants, 423,335 items
Instance 1 : First repeat assessment visit (2012-13)
17,568 participants, 17,568 items
Instance 2 : Imaging visit (2014+)
44,464 participants, 44,464 items
Instance 3 : First repeat imaging visit (2019+)
2,868 participants, 2,868 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.