Data
258,934 items of data are available, covering 221,920 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
172,524 participants, 172,524 items
Instance 1 : First repeat assessment visit (2012-13)
20,325 participants, 20,325 items
Instance 2 : Imaging visit (2014+)
60,811 participants, 60,811 items
Instance 3 : First repeat imaging visit (2019+)
5,274 participants, 5,274 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