| Value | Category | Cases | |
|---|---|---|---|
| 1 | More comfortable | 866 |
17.2%
|
| 2 | Less comfortable | 1655 |
32.8%
|
| 3 | No difference from non-smokers | 2009 |
39.9%
|
| 4 | More comfortable | 244 |
4.8%
|
| 5 | No difference from non-smokers | 266 |
5.3%
|
| Sysmiss | 37 |