Randomized Controlled Trial
Copyright ©The Author(s) 2023.
World J Clin Cases. Nov 16, 2023; 11(32): 7806-7813
Published online Nov 16, 2023. doi: 10.12998/wjcc.v11.i32.7806
Table 4 Comparison of postoperative nausea and vomiting within postoperative 48 h between the sufentanil and butorphanol groups

Sufentanil group (n = 55)
Butorphanol group (n = 55)
Z
P value
T1 PONV (0/I/II/III)42/6/6/152/3/0/0-2.7860.005a
T2 PONV (0/I/II/III)21/11/11/244/4/7/0-3.1880.001a
T3 PONV (0/I/II/III)50/3/2/054/1/0/0-1.3750.169