Classification of smoking status and exposure to second-hand smoke
2 - Non-smoker
| Code | Title |
|---|---|
| 21 | Exposed to second-hand smoke at home |
| 22 | Not exposed to second-hand smoke at home |
| 23 | Not specified if exposed to second-hand smoke at home |
- Date modified:
| Code | Title |
|---|---|
| 21 | Exposed to second-hand smoke at home |
| 22 | Not exposed to second-hand smoke at home |
| 23 | Not specified if exposed to second-hand smoke at home |