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Results of the McNemar test and absolute number of different complications in the pre- and the posttest.
| Complications | Yes | No | |
|---|---|---|---|
| Pretest (45%) | 9 | 20 | 29 |
| Posttest (40%) | 8 | 21 | 29 |
| 17 | 41 | P = 1,0 | |
|
| |||
| Complications | Stage 1 | Stage 2 | Stage 3 |
|
| |||
| Pre test | 1 | 2 | 6 |
| Posttest | 2 | 2 | 4 |
