Benson 2006.

Methods	Randomised controlled trial of fertility patients in US; abstract only
Participants	Patients (n = 258) who had been scheduled for ET were randomised into needle acupuncture (n = 53), laser acupuncture (n = 53), sham laser acupuncture (n = 52), relaxation treatment (n = 50) and no treatment (n = 50). For the purpose of this meta‐analysis, only the results from the needle acupuncture and no treatment groups were used. There were no details on the demographics as abstract only available
Interventions	Needle acupuncture performed for 25 minutes before and after embryo transfer versus no intervention control group. There were no details on the qualifications of the acupuncturists as abstract only available
Outcomes	Clinical pregnancy rate
Assisted conception protocols	Protocol breakdown not provided
Notes	Emailed authors for LBR but no reply
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Abstract only; sequence generation not stated.
Allocation concealment (selection bias)	Unclear risk	Abstract only; allocation concealment not stated.
Blinding (performance bias and detection bias) All outcomes	High risk	No sham needle group used, therefore blinding not possible
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	258 participants randomized but authors did not state the number of participants that completed the study.
Selective reporting (reporting bias)	Unclear risk	Did not report live birth
Other bias	Low risk	None known