Table 2.

comparison of mean cortisol level between the day of oocyte retrieval (T1) and the day of embryo transfer (T2) in each of the three groups

	T1 Cortisol level (µg/dl)	T2 Cortisol level (µg/dl)	Intragroup comparisons: P-value
Group A	95.47±31.97	121.80±34.58	0.001*
Group B	103.00±41.75	144.37±60.33	0.001*
Group C	105.94±55.40	165.78±51.67	0.001*

T1: cortisolemia: on the day of oocyte retrieval; T2: cortisolemia: on the day of embryo transfer, *: Statistically significant difference (p<0.05), Data are presented as mean ± SD