Description: Since your 68th birthday, have you been told by a doctor that you have asthma - at age 76 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 |
| 3 | Yes, but before the age of 68 |
| Field ID | Description | Category |
|---|---|---|
| 7419 | Since your 68th birthday, have you been told by a doctor that you have asthma - at age 76 years | Respiratory conditions |
National Survey of Health and Development 1946 Cohort