Table 2.

The incidences of PONV within first postoperative 48 h

Time course	TEAS Group (n = 138)	Sham-TEAS Group (n = 139)	P-value
0–2 h
Nausea	20(14.49)	48(34.53)	< 0.01
Vomiting	7(5.07)	18(12.95)	0.02
2–6 h
Nausea	7(5.07)	17(12.23)	0.03
Vomiting	4(2.90)	13(9.35)	0.03
6–24 h
Nausea	0(0.00)	5(3.59)	0.06
Vomiting	0(0.00)	3(2.16)	0.25
24–48 h
Nausea	0(0)	5(3.59)	0.06
Vomiting	0(0)	2(1.44)	0.25
0–48 h
Nausea	24(17.39)	53(38.13)	< 0.01
Vomiting	9(6.52)	27(19.42)	< 0.01
Complete response within 48 h after surgery	112(81.16)	83(59.71)	< 0.01

The data are presented as number (percentage)