Table 1. Summary of studies included
Study	Country	Intervention	Results
Paulus et al., 2002	Germany	80 patients underwent 25 minutes of acupuncture before and after ET; the control were 80 patients without acupuncture	34/80 got pregnant in the acupuncture group, versus 21/80 in the control group
Westergaard et al., 2006	Denmark	95 patients underwent 25 minutes of acupuncture before and after ET; the control were 87 patients without acupuncture	40/95 got pregnant in the acupuncture group, versus 24/87 in the control group
Domar et al., 2009	USA	78 patients underwent 25 minutes of acupuncture before and after ET; the controls were 68 patients without acupuncture	39/78 got pregnant in the acupuncture group, versus 29/68 in the control group
So et al., 2009	China	185 patients underwent 25 minutes of acupuncture before and after ET; the controls were 185 patients with sham acupuncture	81/185 got pregnant in the acupuncture group, versus 102/185 in the control group
Andersen et al., 2010	USA	314 patients underwent 30 minutes of acupuncture before and after ET; the control were 321 patients with sham acupuncture	126/314 got pregnant in the acupuncture group, versus 149/321 in the control group
Moy et al., 2011	USA	86 patients underwent 25 minutes of acupuncture before and after ET; the controls were 74 patients with sham acupuncture	39/86 got pregnant in the acupuncture group, versus 39/74 in the control group