Data
251,946 items of data are available, covering 217,538 participants, encoded using Data-Coding
100637.
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
172,535 participants, 172,535 items
Instance 1 : First repeat assessment visit (2012-13)
20,325 participants, 20,325 items
Instance 2 : Imaging visit (2014+)
53,812 participants, 53,812 items
Instance 3 : First repeat imaging visit (2019+)
5,274 participants, 5,274 items
Notes
ACE touchscreen question "Have you ever worked in a noisy place where you had to shout to be heard?"
Field 4825 was collected from all participants except those who indicated they were completely deaf, as defined by their answers to Field 2247