Data
275,109 items of data are available, covering 231,145 participants, encoded using Data-Coding
100635.
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
172,514 participants, 172,514 items
Instance 1 : First repeat assessment visit (2012-13)
20,324 participants, 20,324 items
Instance 2 : Imaging visit (2014+)
75,325 participants, 75,325 items
Instance 3 : First repeat imaging visit (2019+)
6,946 participants, 6,946 items
Notes
ACE touchscreen question "Do you get or have you had noises (such as ringing or buzzing) in your head or in one or both ears that lasts for more than five minutes at a time?"
Field 4803 was collected from all participants except those who indicated they were completely deaf, as defined by their answers to Field 2247