From: The correlation between endometrial thickness and outcome of in vitro fertilization and embryo transfer (IVF-ET) outcome
Endometrial thickness on day of HCG
Group A (n)
Group B (n)
Pregnancy rate
< 11 mm
283
634
30.90%
≥ 11 mm
599
948
38.70%
Total
882
1582
35.80%