Description: Time walked before being interrupted by pain in left knee - 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 |
|---|---|
| 1 | Less than 1 minute |
| 2 | 1 to 5 minutes |
| 3 | 5 to 10 minutes |
| 4 | 10 to 20 minutes |
| 5 | More than 20 minutes |
| Field ID | Description | Category |
|---|---|---|
| 9355 | Time walked before being interrupted by pain in left knee - at age 69 years | Physical activity |
National Survey of Health and Development 1946 Cohort