Table 1.

Final sample characteristics for both cycle phases.

	Follicular phase (n = 31) M ± SD	Luteal phase (n = 34) M ± SD	p
Age (years)	24.71 ± 3.04	26.18 ± 4.83	0.202
Education (years)	15.50 ± 2.68	16.33 ± 2.48	0.152
β-estradiol (pg/ml)	55.20 ± 89.0	130.9 ± 55.0	<0.001
Progesterone (ng/ml)	0.142 ± 0.08	9.565 ± 6.35	<0.001