| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | chest only | 246 |
35.3%
|
| 2 | nose only | 298 |
42.8%
|
| 3 | both | 144 |
20.7%
|
| 6 | other | 1 |
0.1%
|
| 8 | don't know | 8 |
1.1%
|
| Sysmiss | 15017 |