Data
385,371 items of data are available, covering 133,094 participants.
Defined-instances run from 0 to 1, labelled using Instancing
2.
Array indices run from 0 to 15.
Average length is 5.0 characters, longest is 5.
2 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
117,117 participants, 328,500 items
Too few values for statistical summary.
Instance 1 : First repeat assessment visit (2012-13)
20,198 participants, 56,871 items
Too few values for statistical summary.
Notes
Visual acuity (left), letter-by-letter result for round
Value is 1 for correct letter, 0 for error. Ordering is same as Field 5080.