| Value | Category | Cases | |
|---|---|---|---|
| 1 | Blood taken | 166 |
81.4%
|
| 2 | Not present | 7 |
3.4%
|
| 3 | Refused | 28 |
13.7%
|
| 4 | Sample not tested/lost | 1 |
0.5%
|
| 5 | Not enough DBS to complete protocol | 0 |
0%
|
| 6 | Other | 2 |
1%
|
| Sysmiss | 8853 |