Table 1.

Clinical and sonographic characteristics of study participants with regular and irregular menstrual cycles.

	REGULAR CYCLES (N=39)			IRREGULAR CYCLES (N=37)
	P05	P50	P95	P05	P50	P95
Demographics
Age (y)	19	28	38	19	24	35.0
BMI (kg/m2)	19.5	23.9	42.1	19.1	26.8	52.8
Menarche (y)	10	12	14.5	10	13	15.5
Total Testosterone (ng/dL)	15.0	33.4	71.1	17.3	35.6	98.9
Mean Menstrual Cycle Length (d)	26.5	30.0**	34.0	37.0	61.0**	365.0
Clinical Markers
Total mFG Score	0.0	4.0	13.0	1.0	6.0	15.0
Upper Lip Score	0.0	0.0*	2.0	0.0	1.0*	3.0
Chin Score	0.0	0.0*	3.0	0.0	1.0*	3.0
Upper Back Score	0.0	0.0	2.0	0.0	0.0	1.0
Lower Back Score	0.0	0.0	2.5	0.0	0.0	2.0
Upper Arm Score	0.0	0.0	1.0	0.0	0.0	1.0
Thigh Score	0.0	0.0	3.0	0.0	1.0	2.0
Chest Score	0.0	0.0	2.0	0.0	1.0	3.0
Upper Abdomen	0.0	0.0	2.0	0.0	0.0	3.0
Lower Abdomen	0.0	1.0	3	0.0	1.0	3.0
Sonographic Markers
2–5mm FNPO	5.5	14.5**	40	7.5	23**	74.0
6–9mm FNPO	0.5	3.0	12.5	0.0	3.0	14
2–9mm FNPO	7.5	19**	41.5	9.5	27**	77
S/A Ratio	0.25	0.44	0.63	0.29	0.40	0.57
Stromal Index	1.21	1.33	1.61	1.19	1.36	1.55
Ovarian Area (cm2)	2.74	4.67**	7.05	3.78	5.66**	9.32
Ovarian Volume (mL)	3.86	7.62**	13.75	5.36	9.55**	19.64

Abbreviations include: BMI, Body Mass Index; mFG Score, modified Ferriman-Gallwey Score; FNPO, Follicle Number Per Ovary; S/A Ratio, Stromal-to-total Area Ratio. Significant differences between groups denoted by

^*P<0.05;

^**P<0.01.