| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | chest only | 9 |
15.8%
|
| 2 | nose only | 35 |
61.4%
|
| 3 | both | 9 |
15.8%
|
| 6 | other | 0 |
0%
|
| 8 | don't know | 4 |
7%
|
| Sysmiss | 17602 |