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137,866 items of data are available, covering 133,609 participants, encoded using Data-Coding 100274
Defined-instances run from 0 to 1, labelled using Instancing 2
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
117,584 participants, 117,584 items
Instance 1 : First repeat assessment visit (2012-13)
20,282 participants, 20,282 items
Visual acuity (right) method
1 Related Data-Fields
|5187||Visual acuity measured (left)||Field 5187 is the opposite-side complement to Current Field|