Sterile, disposable needles were inserted into specific acupoints until Deqi sensation was elicited. The needles were retained for 25 minutes before and after embryo transfer.

Each point was stimulated with a laser (Luminex Laser Therapy System: Medical Laser Systems, Branford, CT) set at 5 joules/cm2 (J/cm2) in continuous mode for 0.10 seconds. Based on various studies, a minimum of 4 J/cm2 produces an improved circulatory effect.

However, support staff uninvolved in the design of the trial or analysis of the data disarmed the machine, such that no laser irradiation was emitted. This system created an illusion for both the patient and the acupuncturist, and allowed for a truly double blinded control group.

This control group was not exposed to any additional physical contact or acupuncture related protocol. They were only exposed to dim light and calming music before and after embryo transfer, mimicking the natural waiting room and procedure room setting for all patients undergoing embryo transfer.

See above

Number of gestational sacs seen on ultrasound per embryo transferred

Number of pregnancies per embryo transfer procedure

Number of deliveries of at least on live newborn per embryo transfer procedure