| Value | Category | Cases | |
|---|---|---|---|
| 1 | Unable to collect sample | 10 |
27.8%
|
| 2 | Absent | 10 |
27.8%
|
| 3 | Refused | 8 |
22.2%
|
| 4 | Other | 8 |
22.2%
|
| Sysmiss | 1430 |