Table 5. Effects of treatments on the endometrium: comparison of endometrial thickening at the beginning of the cycle with that during the pre-ovulatory period.
Group Pearson’s correlation p-value
CC+HCG 0.574 0.040*
LTZ+HCG 0.331 0.319
CC+PLAC 0.382 0.047*
LTZ+PLAC -0.227 0.479

Statistical significance of 95%; SD: standard deviation.
CC, clomiphene citrate; HCG, human chorionic gonadotropin; LTZ, letrozole; PLAC, placebo.