Data
285,582 items of data are available, covering 236,613 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
172,451 participants, 172,451 items
Instance 1 : First repeat assessment visit (2012-13)
20,319 participants, 20,319 items
Instance 2 : Imaging visit (2014+)
84,008 participants, 84,008 items
Instance 3 : First repeat imaging visit (2019+)
8,804 participants, 8,804 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