Table 2.

Comparison between cycles that achieved pregnancy vs. cycles that did not

	Pregnant	Not pregnant
Number of cycles	65	177
Mean no of embryos transferred	2.97 ±0.11*	2.70 ± 0.07*
Mean Age (years)	36.46 ± 0.67	38.49 ± 1.71
Mean AES at freezing	25.42 ± 0.87	24.08 ± 0.55
Mean AES at transfer	27.59 ± 0.86	25.76 ± 0.55
Mean endometrial thickness (mm)	9.32 ± 0.29	9.83 ± 0.72
Mean E2 level (pg/ml)	337.1 ± 29.86*	433.3 ± 20.72*

^*P-value <0.05, CI - 95%.

Values expressed as Mean ± SER.