| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | chest only | 57 |
11.1%
|
| 2 | nose only | 280 |
54.4%
|
| 3 | both | 171 |
33.2%
|
| 6 | other | 3 |
0.6%
|
| 8 | don't know | 4 |
0.8%
|
| Sysmiss | 16572 |