Table 6.

Adverse Effects during 48 h after surgery.

Adverse reactions	S group	SD group	P values
Nausea	21.1%	9.2%a	0.042
Vomiting	17.1%	6.6%a	0.045
Itching	5.3%	5.3%	1.000
Shiver	6.6%	6.6%	1.000
Respiratory depression	0	0	–
Sinus bradycardia	0	0	–

Data are expressed as rate.

^aP < 0.05 VS S group.