Description: In the last four weeks, has the amount you have been using an electronic cigarette or vaping device changed?
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 | More frequent use of e-cig/vaping device |
| 3 | No change |
| Field ID | Description | Category |
|---|---|---|
| 12580 | In the last four weeks, has the amount you have been using an electronic cigarette or vaping device changed? | Lifestyle habits |
National Survey of Health and Development 1946 Cohort