Description: Have you had any of these blood tests - HbA1C: a test for diabetes - at age 69 years
This is a flat (unstructured) list which uses integers to represent categories or special values.
| Coding can be downloaded here as a tab-separated file. |
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| Coding | Meaning |
|---|---|
| 0 | No |
| 1 | Yes, in the past 3 months |
| 2 | Yes, in the past 1 year |
| 3 | Yes, in the last 1-3 years |
National Survey of Health and Development 1946 Cohort