| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | chest only | 55 |
33.7%
|
| 2 | nose only | 76 |
46.6%
|
| 3 | both | 25 |
15.3%
|
| 6 | other | 0 |
0%
|
| 8 | don't know | 7 |
4.3%
|
| Sysmiss | 15551 |