488,624 items of data are available, covering 428,913 participants, encoded using Data-Coding 100336
Defined-instances run from 0 to 3, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
423,326 participants, 423,326 items
Instance 1 : First repeat assessment visit (2012-13)
17,567 participants, 17,567 items
Instance 2 : Imaging visit (2014+)
44,750 participants, 44,750 items
Instance 3 : First repeat imaging visit (2019+)
2,981 participants, 2,981 items
ACE touchscreen question "Over the last 3 months, on average how much time per week did you spend making or receiving calls on a mobile phone?"
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 1120 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 1120.
Registered researchers may, when logged in, request that new analyses be generated and displayed here.