| Value | Category | Cases | |
|---|---|---|---|
| 1 | chest only | 63 |
2.9%
|
| 2 | nose only | 79 |
3.6%
|
| 3 | both | 83 |
3.8%
|
| 6 | other | 4 |
0.2%
|
| 8 | don't know | 8 |
0.4%
|
| 9 | not applicable | 1832 |
84%
|
| 9999995 | missing:impute | 111 |
5.1%
|