From: Effect of intrauterine injection of human chorionic gonadotropin before embryo transfer on clinical pregnancy rates from in vitrofertilisation cycles: a prospective study
Control group
Intervention group hCG
P value
n 109
n 101
Biochemical pregnancies (media, proportion)
39
53
.014
35.7%
52.4%
Clinical pregnancies (media, proportion)
36
51
.010
33.0%
50.4%