Tavlan 1996.

Methods	Parallel‐group randomized trial, conducted in Turkey. Study dates not reported. This study was reported as an abstract.
Participants	65 women (18 ‐ 45 y) undergoing gynaecological laparoscopy.
Interventions	Group 1: ondansetron 8 mg IV before induction (n = 25). Group 2: 0.2 ml 50% dextrose on the P6 acupoint before induction (n = 20). Group 3: 20 ml IV saline before induction.
Outcomes	Nausea (0 ‐ 1 h), vomiting (0 ‐ 1 h).
Notes	Group 3 (n = 20) not used in the acupoint P6 stimulation versus sham analyses. No details about funding source or any declarations of interest among authors.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Insufficient information.
Allocation concealment (selection bias)	Unclear risk	Insufficient information.
Blinding of patients (performance bias) All outcomes	Unclear risk	Insufficient information.
Blinding of healthcare providers (performance bias) All outcomes	Unclear risk	Insufficient information.
Blinding of outcome assessor (detection bias) All outcomes	Unclear risk	Insufficient information.
Incomplete outcome data (attrition bias) All outcomes	Low risk	No missing data reported for 65 participants analysed.
Selective reporting (reporting bias)	Unclear risk	Risk of side effects and rescue antiemetic drugs not given because the article was an abstract.
Other bias	Low risk	Baseline characteristics were comparable. "No significant differences were observed between the groups in terms of demography".