. 2014 Mar-Apr;49(2):154–162. doi: 10.4085/1062-6050-49.2.01

Table 2. .

Reproductive Hormone Concentrations of and Anterior Knee Laxity at the Selected Time Points (Mean ± SD)

	Menses	Ovulation	Menses, 95% Confidence Interval		Ovulation, 95% Confidence Interval		t	P
	Menses	Ovulation	Lower	Upper	Lower	Upper	t	P
Estradiol-β-17, pg/mL	31.1 ± 13.7	70.4 ± 54.7	24.5	37.7	44.0	96.7	−2.9	.009^a
Progesterone, ng/mL	0.5 ± 0.3	3.9 ± 4.2	0.4	0.6	1.9	5.9	−3.4	.003^a
Free testosterone, pg/mL	0.8 ± 0.3	0.9 ± 0.2	0.7	0.9	0.8	0.9	−0.8	.41
Laxity, mm	6.6 ± 1.4	7.3 ± 1.3	5.9	7.2	6.7	7.9	−2.3	.03^a

^{^a}

Indicates difference between menstrual cycle phases.