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Comparison of grades of nausea and vomiting between 2 groups.
| Variables | The control group (n = 105) | The intervention group (n = 105) | z | P-value |
|---|---|---|---|---|
| Nausea grade | 1.0 (0.0, 2.0) | 0.0 (0.0, 1.0) | –5.370 | .000 |
| Vomiting grade | 0.0 (0.0, 1.0) | 0.0 (0.0, 0.0) | –3.879 | .000 |
