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

Table 5

Comparison of the means of changes in the variables in the two groups before and one month after the intervention.

Variable	Group	Preintervention	Postintervention	Difference	Sig.
		Knowledge	Control
Intervention
Sig.^a	0.37
Behavior	Control				0.137
	Intervention
	Sig.^b	0.205
Oral health literacy	Control				0.069
	Intervention
	Sig.^a	0.224
Dental plaque index	Control
	Intervention
	Sig.^b	0.080
Perceived vulnerability	Control				0.400
	Intervention
	Sig.^b	0.391
Perceived severity	Control				0.365
	Intervention
	Sig.^b	0.250
Response costs	Control				0.291
	Intervention
	Sig.^b	0.519	<0.013
Response efficacy	Control				0.373
	Intervention
	Sig.^a	0.498
Self-efficacy	Control				0.992
	Intervention
	Sig.^b	0.666
Cues to action	Control				0.138
	Intervention
	Sig.^b	0.349

, , ; ^aMann–Whitney test; ^b-test.