573,199 items of data are available, covering 501,473 participants, encoded using Data-Coding 100349
Defined-instances run from 0 to 3, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,456 participants, 501,456 items
Instance 1 : First repeat assessment visit (2012-13)
20,327 participants, 20,327 items
Instance 2 : Imaging visit (2014+)
48,335 participants, 48,335 items
Instance 3 : First repeat imaging visit (2019+)
3,081 participants, 3,081 items
ACE touchscreen question "Do you find it difficult to follow a conversation if there is background noise (such as TV, radio, children playing)?"
Field 2257 was collected from all participants except those who indicated they were completely deaf, as defined by their answers to Field 2247
There are no tabulations involving field 2257.
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