Table I.

Demographic and biochemical characteristics (mean ± SEM) of EW and women with PCOS.

	EW (n = 15)	PCOS (n = 12)	P value
Age (years)	25.6 ± 1.3	24.3 ± 1.0	0.4
BMI (kg/m2)	22.0 ± 0.7	22.7 ± 0.6	0.5
% Body fat	26.5 ± 1.4	33.4 ± 2.1	<0.01
LH pulse #/24 h	14.9 ± 0.7	18.5 ± 1.0	<0.01
LH pulse amplitude	1.8 ± 0.2	3.9 ± 0.3	<0.01
LH (IU/L)	3.7 ± 0.3	13.0 ± 0.8	<0.01
FSH (IU/L)	4.9 ± 0.4	5.3 ± 0.2	0.4
LH:FSH	0.8 ± 0.1	2.5 ± 0.2	<0.01

Statistically significant values are indicated in bold.

EW, eumenorrheic, ovulatory women; PCOS, polycystic ovary syndrome.