| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 163 |
94.2%
|
| 1 | Yes forceps | 7 |
4%
|
| 2 | Yes suction | 2 |
1.2%
|
| 9 | No response | 1 |
0.6%
|
| Sysmiss | 45 |