| Value | Category | Cases | |
|---|---|---|---|
| 1 | Chest Only | 269 |
47.1%
|
| 2 | Nose Only | 161 |
28.2%
|
| 3 | Both | 109 |
19.1%
|
| 6 | Other | 3 |
0.5%
|
| 8 | Don't Know | 29 |
5.1%
|
| Sysmiss | 15915 |