| Value | Category | Cases | |
|---|---|---|---|
| -999 | NA | 8097 |
92.3%
|
| -99 | Don't know | 0 |
0%
|
| 1 | Chest only | 358 |
4.1%
|
| 2 | Nose only | 164 |
1.9%
|
| 3 | Both | 151 |
1.7%
|
| 88 | Other | 1 |
0%
|