50,719 items of data are available, covering 48,796 participants, encoded using Data-Coding 100552
Defined-instances run from 0 to 2, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
39,753 participants, 39,753 items
Instance 1 : First repeat assessment visit (2012-13)
3,891 participants, 3,891 items
Instance 2 : Imaging visit (2014+)
7,075 participants, 7,075 items
ACE touchscreen question "Have you ever had surgery to remove any of the following?"
Field 5540 was collected from participants who indicated that they get a pain in either leg on walking, as defined by their answers to Field 4728
There are no tabulations involving field 5540.
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