Description: If you cannot remember the month and year you had COPD (Chronic obstructive pulmonary disease), please give your age - 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 |
|---|---|
| 98 | Before the age of 68 |
| Field ID | Description | Category |
|---|---|---|
| 8533 | If you cannot remember the month and year you had COPD (Chronic obstructive pulmonary disease), please give your age - at age 76 years | Respiratory conditions |
National Survey of Health and Development 1946 Cohort