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72,755 items of data are available, covering 34,503 participants, encoded using Data-Coding 1210
Defined-instances run from 0 to 1, labelled using Instancing 2
Array indices run from 0 to 5.
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
30,253 participants, 63,048 items
Instance 1 : First repeat assessment visit (2012-13)
4,562 participants, 9,707 items
This data field means the result is unreliable for the regularity index of the keratometry result taken at 6mm for the left eye
1 Related Data-Fields
|5146||6mm regularity index unreliable (right)||Current Field is the opposite-side complement to Field 5146|