Table 2.
Pain questionnaire 24 hours after surgery (n)
| Grouping | Control group | Observation group |
|---|---|---|
| I | 11 | 26 |
| II | 24 | 14 |
| III | 5 | 0 |
| IV | 0 | 0 |
| Z | 3.621 | |
| P | <0.001 | |
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