Data
72,664 items of data are available, covering 34,466 participants, encoded using Data-Coding
1208.
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
30,219 participants, 62,968 items
Instance 1 : First repeat assessment visit (2012-13)
4,558 participants, 9,696 items
Notes
This data field means the result is unreliable for the asymmetry index of the keratometry result taken at 6mm for the left eye
1 Related Data-Field
Field ID | Description | Relationship |
5143 | 6mm asymmetry index unreliable (right) | Current Field is the opposite-side complement to Field 5143 |