| Value | Category | Cases | |
|---|---|---|---|
| 1 | Chest only | 8 |
34.8%
|
| 2 | Nose only | 9 |
39.1%
|
| 3 | Both | 6 |
26.1%
|
| 6 | Other | 0 |
0%
|
| 8 | Don't know | 0 |
0%
|
| Sysmiss | 8421 |