Data
20,336 items of data are available, covering 12,007 participants, encoded using Data-Coding
1207.
Defined-instances run from 0 to 1, labelled using Instancing
2.
Array indices run from 0 to 5.
2 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
10,323 participants, 17,365 items
Instance 1 : First repeat assessment visit (2012-13)
1,765 participants, 2,971 items
Notes
This data field means the result is unreliable for the asymmetry index of the keratometry result taken at 3mm for the right eye
1 Related Data-Field
Field ID | Description | Relationship |
5141 | 3mm asymmetry index unreliable (left) | Field 5141 is the opposite-side complement to Current Field |