Data
295,228 items of data are available, covering 240,378 participants, encoded using Data-Coding
100352.
Defined-instances run from 0 to 3, labelled using Instancing
2.
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
172,446 participants, 172,446 items
Instance 1 : First repeat assessment visit (2012-13)
20,319 participants, 20,319 items
Instance 2 : Imaging visit (2014+)
89,805 participants, 89,805 items
Instance 3 : First repeat imaging visit (2019+)
12,658 participants, 12,658 items
Notes
ACE touchscreen question "Do you have a cochlear implant?"
Field 4792 was collected from all participants except those who indicated they were completely deaf, as defined by their answers to Field 2247