The Effect of an Educational Intervention on Oral Health Literacy, Knowledge, and Behavior in Iranian Adolescents: A Theory-Based Randomized Controlled Trial

Table 3

Demographic characteristics of the participants in the intervention () and control () groups at baseline.

Variables	Category	(%) intervention	(%) control	value
Age (years)	14	26 (33.76)	24 (23.28)	0.447
	15	51 (66.24)	61 (71.76)
Household size	3	5 (6.5)	12 (14.1)	0.187
	4	43 (55.8)	36 (42.4)
	5	25 (32.5)	26 (30.6)
	≥6	4 (5.2)	11 (13)
Father’s level of education	Low (up to secondary school)	8 (10.4)	38 (44.7)	0.000
	High school and diploma	40 (52)	30 (35.3)
	Academic	29 (37.7)	17 (20)
Mother’s level of education	Low (up to secondary school)	15 (19.5)	37 (43.6)	0.003
	High school and diploma	39 (50.7)	35 (41.2)
	Academic	23 (29.9)	13 (15.6)
Father’s occupation	Unemployed/worker/retired or dead	15 (19.5)	19 (22.3)	0.047
	Self-employed	40 (52)	55 (64.7)
	Governmental employee/doctor/engineer	22 (27.3)	11 (16.5)
Mother’s occupation	Homemaker/retired	59 (76.6)	74 (87)	0.087
	Worker/self-employed	7 (9.1)	5 (5.9)
	Governmental employee/doctor/engineer	11 (14.3)	6 (7.1)

Chi-square.