Table 1.

General characteristics in the experimental and control groups at baseline (n = 38).

Variables		Experimental Group (n = 19)		Control Group (n = 19)		X2 or Z (p)
		Mean ± SD (Range)	n (%)	Mean ± SD (Range)	n (%)
Age (year)		22.37 ± 2.50		21.74 ± 2.51		0.84 (0.401) b
Socioeconomic status
	High		3 (15.8)		3 (15.8)	0.00 (<0.999) a
	Middle		15 (79.0)		15 (79.0)
	Low		1 (5.3)		1 (5.3)
Educational status
	Undergraduate student		16 (84.2)		16 (84.2)	0.00 (<0.999) a
	Graduate student		3 (15.8)		3 (15.8)
Menarche age (yr)		12.45 ± 1.44		12.97 ± 1.99		−0.49 (0.622) b
		(11.0–17.0)		(11.0–17.0)

^ap-value by fisher exact test; ^bp-value by wilcoxon rank sum test.