Westergaard 2006.

Methods	Randomised controlled trial with patients from private clinic in Denmark
Participants	273 women randomised: 87 allocated to no acupuncture and 95 to acupuncture on ET day only; 91 to acupuncture on ET and ET+2 days; 27 excluded, The average ages of the three groups of women were: 37 years (27 to 45) in the control (n = 87) group, 37 years (24 to 45) in the group who had acupuncture on the day of ET (n = 95), and 37 years (27 to 45) for those with repeated acupuncture (ET + 2) (n = 91). There was no difference in the BMI between the three groups and about 67% of women had one or more attempts of IVF in the three groups. The main causes of subfertility were described as male factor or unexplained
Interventions	Acupuncture was performed by specially trained nurses on patients undergoing ET on the day of ET, ET+2 and not on controls
Outcomes	Clinical pregnancy rate on ultrasound
Assisted conception protocols	Standard, long protocol GnRH down‐regulation and the follicle stimulating hormone (FSH) or human menopausal gonadotrophin (hMG)
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Randomisation procedure handled by nurse not involved in study
Allocation concealment (selection bias)	Unclear risk	‘drawing of sealed envelope’ ‐ no further details reported
Blinding (performance bias and detection bias) All outcomes	High risk	Control group had paracervical block, so blinding of the participants and personnel not possible.
Incomplete outcome data (attrition bias) All outcomes	Low risk	300 participants randomized. 27 dropped out leaving 273 participants for analysis.
Selective reporting (reporting bias)	Unclear risk	LBR data not prestated outcome.
Other bias	Low risk	none