489,101 items of data are available, covering 428,905 participants, encoded using Data-Coding 100337
Defined-instances run from 0 to 3, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
423,314 participants, 423,314 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+)
3,472 participants, 3,472 items
ACE touchscreen question "Over the last 3 months, how often have you used a hands-free device/speakerphone when making or receiving calls on your mobile?"
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 1130 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 1130.
Registered researchers may, when logged in, request that new analyses be generated and displayed here.