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Retrospective Study
Copyright: ©Author(s) 2026.
World J Gastrointest Surg. Apr 27, 2026; 18(4): 116546
Published online Apr 27, 2026. doi: 10.4240/wjgs.v18.i4.116546
Table 6 Comparison of postoperative adverse reactions between two groups, n (%)
Adverse reaction
Observation group (n = 59)
Control group (n = 58)
Statistic
P value
Nausea and vomitingZ = -2.5340.011
    Grade 045 (76.3)32 (55.2)
    Grade I11 (18.6)17 (29.3)
    Grade II3 (5.1)7 (12.1)
    Grade III0 (0)2 (3.4)
Urinary retention3 (5.1)6 (10.3)Fisher’s exact test0.312
Skin itching2 (3.4)4 (6.9)Fisher’s exact test0.431
Respiratory depression0 (0)0 (0)--
Dizziness and drowsiness8 (13.6)18 (31.0)χ2 = 5.1230.024


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