Table 2. Pregnancy rates below and above 7.0 mm endometrial thickness
Endometrial thickness on day of HCG BHCG positive (%) BHCG negative (%) p-valuea
<7.0
≥7.0
79.24 (42/53)
69.17 (294/425)
20.76 (11/53)
30.83 (131/425)
0.1036
Total 336 142

aChi-square (p<0.05)