| Value | Category | Cases | |
|---|---|---|---|
| 1 | chest only | 88 |
32.6%
|
| 2 | nose only | 112 |
41.5%
|
| 3 | both | 61 |
22.6%
|
| 6 | other | 3 |
1.1%
|
| 8 | don't know | 6 |
2.2%
|
| Sysmiss | 38176 |