| Value | Category | Cases | |
|---|---|---|---|
| -999 | NA | 2 |
2.4%
|
| -99 | Don't know | 0 |
0%
|
| 1 | Chest only | 69 |
83.1%
|
| 2 | Nose only | 6 |
7.2%
|
| 3 | Both | 5 |
6%
|
| 88 | Other | 1 |
1.2%
|
| Sysmiss | 7789 |