Table 1.

Comparison of the frequency distribution of demographic variables in the experimental and control groups

Variables	Experimental group		Control group		p value
	Number	Percentage	Number	Percentage
Educational stage
7th grade	46	57.50	48	60	0.145
8th grade	34	42.50	32	40
Household monthly income
Less than 2 million tomans	26	‏32.50	22	27.50	0.210
2–5 million toman	34	42.50	35	43.75
More than 5 million tomans	20	25	23	28.75
Mother’s occupation
Employed	22	27.70	19	23.75	0.331
Housewife	58	72.50	61	76.25
Father’s occupation
Employed	22	27.50	24	30	0.212
Self-employed	28	35	26	32.50
Laboror	17	21.25	15	18.75
Unemployed	13	16.25	15	18.75
Mother’s education
Illiterate	3	3.75	2	2.50	0.186
Primary school	14	17.50	18	22.50
Secondary school	17	21.25	16	20
High school	36	45	32	40
College	10	12.50	12	15
Father’s education
Illiterate	2	2.50	1	1.25	0.198
Primary school	12	15	10	12.50
Secondary school	18	22.50	24	30
High school	34	42.50	30	37.50
College	14	17.50	15	18.75