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10,875 items of data are available, covering 10,623 participants, encoded using Data-Coding 100272
Defined-instances run from 0 to 1, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
8,697 participants, 8,697 items
Instance 1 : First repeat assessment visit (2012-13)
2,178 participants, 2,178 items
If the participant stated they had eye surgery (Field 5181
), they were asked if they had cataract surgery. If yes, they were excluded from all eye tests.
0 Related Data-FieldsThere are no related data-fields
0 ResourcesThere are no matching Resources
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