| Value | Category | Cases | |
|---|---|---|---|
| 0 | 56 |
77.8%
|
|
| 1 | Disposable syringes | 2 |
2.8%
|
| 2 | Glass syringes | 13 |
18.1%
|
| 3 | Both methods | 1 |
1.4%
|
| Sysmiss | 48 |