| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | chest only | 12 |
13.8%
|
| 2 | nose only | 47 |
54%
|
| 3 | both | 27 |
31%
|
| 6 | other | 0 |
0%
|
| 8 | don't know | 1 |
1.1%
|
| Sysmiss | 17000 |