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| Side effects (%) | D group (n = 34) | M group (n = 33) | P c |
|---|---|---|---|
| Nausea and vomiting | 15 | 36 | 0.042 |
| Skin itching | 0 | 15 | 0.018 |
| Bradycardia | 6 | 12 | 0.371 |
| Hypotension | 9 | 12 | 0.659 |
| Neurologic deficits | 0 | 0 |
c Chi-squared test.
D = dexmedetomidine, M = morphine.
