Name: hak77
Description: Have you had a headache during the past 12 months - at age 31 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. |
Data-Coding 8250
Name: hak77
Name: hak77
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2 Categories
| Coding | Meaning |
|---|---|
| 0 | No |
| 1 | Yes |
1 Data-Field
| Field ID | Description | Category |
|---|---|---|
| 8250 | Have you had a headache during the past 12 months - at age 31 years | Nervous system conditions |
National Survey of Health and Development 1946 Cohort