| Value | Category | Cases | |
|---|---|---|---|
| 1 | Chest only | 238 |
35.8%
|
| 2 | Nose only | 303 |
45.6%
|
| 3 | Both | 114 |
17.1%
|
| 6 | Other | 5 |
0.8%
|
| 8 | Don't know | 5 |
0.8%
|
| Sysmiss | 30414 |