Comparison 8. Acupressure/acupuncture vs placebo.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
8.1 Nausea ‐ intraoperative	9	1221	Risk Ratio (M‐H, Random, 95% CI)	0.55 [0.41, 0.74]
8.1.1 Acupressure	9	1221	Risk Ratio (M‐H, Random, 95% CI)	0.55 [0.41, 0.74]
8.2 Vomiting ‐ intraoperative	9	1221	Risk Ratio (M‐H, Random, 95% CI)	0.52 [0.33, 0.80]
8.2.1 Acupressure	9	1221	Risk Ratio (M‐H, Random, 95% CI)	0.52 [0.33, 0.80]
8.3 Nausea ‐ postoperative	7	1069	Risk Ratio (M‐H, Random, 95% CI)	0.46 [0.27, 0.75]
8.3.1 Acupressure	7	1069	Risk Ratio (M‐H, Random, 95% CI)	0.46 [0.27, 0.75]
8.4 Vomiting ‐ postoperative	7	1069	Risk Ratio (M‐H, Random, 95% CI)	0.52 [0.34, 0.79]
8.4.1 Acupressure	7	1069	Risk Ratio (M‐H, Random, 95% CI)	0.52 [0.34, 0.79]
8.5 Anxiety	1	50	Risk Ratio (M‐H, Random, 95% CI)	1.00 [0.07, 15.12]
8.5.1 Acupressure	1	50	Risk Ratio (M‐H, Random, 95% CI)	1.00 [0.07, 15.12]
8.6 Dizziness	1	60	Risk Ratio (M‐H, Random, 95% CI)	1.00 [0.07, 15.26]
8.6.1 Acupressure	1	60	Risk Ratio (M‐H, Random, 95% CI)	1.00 [0.07, 15.26]
8.7 Hypotension	1	50	Risk Ratio (M‐H, Random, 95% CI)	0.79 [0.54, 1.16]
8.7.1 Acupressure	1	50	Risk Ratio (M‐H, Random, 95% CI)	0.79 [0.54, 1.16]
8.8 Pruritus/itching	3	395	Risk Ratio (M‐H, Random, 95% CI)	1.15 [0.85, 1.55]
8.8.1 Acupressure	3	395	Risk Ratio (M‐H, Random, 95% CI)	1.15 [0.85, 1.55]
8.9 Rescue antiemetic (not pre‐specified)	2	240	Risk Ratio (M‐H, Random, 95% CI)	0.50 [0.36, 0.71]