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137,264 items of data are available, covering 133,047 participants, encoded using Data-Coding 34
Defined-instances run from 0 to 1, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
117,064 participants, 117,064 items
Instance 1 : First repeat assessment visit (2012-13)
20,200 participants, 20,200 items
Is view plain or mirrored in visual-acuity (left)
1 Related Data-Fields
|5205||Direct or mirror view (right)||Current Field is the opposite-side complement to Field 5205|