| Value | Category | Cases | |
|---|---|---|---|
| 1 | Own blade/razor | 1577 |
53.4%
|
| 2 | Shared blade/razor | 547 |
18.5%
|
| 3 | Scalpel | 191 |
6.5%
|
| 4 | Knife | 290 |
9.8%
|
| 6 | Other | 79 |
2.7%
|
| 8 | Don't know | 270 |
9.1%
|