Table 1.

Demographic and clinical information in 35 women with primary dysmenorrhea (PDM) and 38 healthy controls.

	PDM (n = 35)	Controls (n = 38)	p-value
Age, years	20.49 ± 1.20	20.58 ± 1.52	0.773
Begin age of menstrual, years	12.60 ± 1.31	12.74 ± 2.60	0.780
Duration years of menstruating	7.89 ± 1.75	7.63 ± 3.04	0.667
Days of Menstrual cycle	30.46 ± 3.21	28.74 ± 2.89	0.019
Pain begin age, years	15.14 ± 1.99	N/A	N/A
Pain duration year, years	5.14 ± 2.13	N/A	N/A
Pain degree	6.54 ± 1.09	N/A	N/A
SAS	33.78 ± 5.35	31.65 ± 4.68	0.074
SDS	37.62 ± 6.71	36.77 ± 6.12	0.573

Values represent mean ± standard deviation.

N/A, non-applicable; SAS, Self-Rating Anxiety Scale; SDS, Self-Rating Depression Scale.