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70,644 items of data are available, covering 35,515 participants, encoded using Data-Coding 1208
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
31,084 participants, 60,948 items
Instance 1 : First repeat assessment visit (2012-13)
4,853 participants, 9,696 items
This data field means the result is unreliable for the asymmetry index of the keratometry result taken at 6mm for the right eye
1 Related Data-Fields
|5142||6mm asymmetry index unreliable (left)||Field 5142 is the opposite-side complement to Current Field|