Boone 2002.

Study characteristics
Methods	RCT
Participants	Women undergoing CS under regional anaesthesia, poorly described. N = 98 women randomised
Interventions	Intervention: 5‐HT3antagonist (Comparison 1) Dolasetron 12.5 mg intravenously. N = 48 women randomised. Comparator: no treatment No antiemetic. N = 50 women randomised
Outcomes	Nausea/retching/vomiting ‐ presented as a combined score.
Notes	Setting: Texas Tech University Health Sciences Center, El Paso, Texas, USA. Dates: not reported Funding source: not reported Declaration of interest: not reported Conference abstract only. This study currently provides no data for the review. We wrote to the authors in 2010 requesting separated outcome data but did not receive a reply.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Quote:"Randomised."
Allocation concealment (selection bias)	Unclear risk	Not described.
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Not stated.
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not stated.
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	None described.
Selective reporting (reporting bias)	Unclear risk	We did not assess the trial protocol.
Other bias	Unclear risk	None apparent.