| Value | Category | Cases | |
|---|---|---|---|
| -555 | 912 |
70.7%
|
|
| -222 | 2 |
0.2%
|
|
| -89 | Refused | 1 |
0.1%
|
| -88 | Dont know | 0 |
0%
|
| -87 | Other | 0 |
0%
|
| 1 | Chest only | 35 |
2.7%
|
| 2 | Nose only | 296 |
22.9%
|
| 3 | Both | 44 |
3.4%
|
| Sysmiss | 8 |