| Value | Category | Cases | |
|---|---|---|---|
| 1 | Chest only | 65 |
51.2%
|
| 2 | Nose only | 39 |
30.7%
|
| 3 | Both | 22 |
17.3%
|
| 7 | Other | 1 |
0.8%
|
| 8 | Don't know | 0 |
0%
|
| Sysmiss | 940 |