Table 2. Demographic and menstrual characteristics of the sample in study2 (M ± SD).

	PMS group (n = 42)	Healthy group (n = 42)	t
PMS total score	8.26 ± 3.43	4.98 ± 2.72	4.866*
PMS positive symptom number	6.79 ± 2.30	4.48 ± 2.08	4.843*
Age	21.86 ± 2.27	22.31 ± 2.54	−0.860
Age of menarche	12.75 ± 1.19	12.86 ± 1.35	−0.386
Length of menstrual cycle	29.25 ± 2.44	29.45 ± 2.71	−0.360
Length of menstrual flow	5.40 ± 0.89	5.08 ± 0.96	1.593

Note: *p < 0.001.