| Value | Category | Cases | |
|---|---|---|---|
| 1 | Chest only | 128 |
0.9%
|
| 2 | Nose | 64 |
0.4%
|
| 3 | Both | 48 |
0.3%
|
| 4 | Other | 20 |
0.1%
|
| 5 | No | 14278 |
98.1%
|
| 777 | Don’t know | 17 |
0.1%
|
| Sysmiss | 1124 |