| Value | Category | Cases | |
|---|---|---|---|
| 1 | Chest only | 12 |
70.6%
|
| 2 | Nose only | 5 |
29.4%
|
| 3 | Both | 0 |
0%
|
| 7 | Other | 0 |
0%
|
| 8 | Don't know | 0 |
0%
|
| Sysmiss | 407 |