Description: During the past month, what time have you usually gone to bed at night? - AM/PM
This is a flat (unstructured) list which uses strings (character sequences) to represent categories or special values.
| Coding can be downloaded here as a tab-separated file. |
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| Coding | Meaning |
|---|---|
| 1 | AM |
| 2 | PM |
| Field ID | Description | Category |
|---|---|---|
| 8818 | During the past month, what time have you usually gone to bed at night? - AM/PM | Sleep |
National Survey of Health and Development 1946 Cohort