| Value | Category | Cases | |
|---|---|---|---|
| 0 | 56 |
77.8%
|
|
| 1 | Boiled water | 15 |
20.8%
|
| 2 | Electric sterilizer | 0 |
0%
|
| 3 | Steam pressure | 1 |
1.4%
|
| 4 | Autoclave | 0 |
0%
|
| 5 | Chemical sterilization | 0 |
0%
|
| 6 | Other | 0 |
0%
|
| Sysmiss | 48 |