Table 4.

Stratified analyses of intervention effects on health behavior for the various levels of the significant moderator variables.^a

Outcome				E-health4Uth vs control group		E-health4Uth +consult vs control group
				OR (95% CI)b	P value	OR (95% CI)c	P value
Alcohol consumption
	Have been drunk or tipsy in the past 4 weeks
		Gender
			Boys	0.68 (0.40, 1.15)	.15
			Girls	1.35 (0.76, 2.38)	.31
Drugs use (past 4 weeks)
	Gender
		Boys				0.36 (0.13, 0.96)	.04
		Girls				4.47 (0.72, 27.74)	.11
Condom use during intercourse
	Ethnicity
		Dutch		3.59 (1.71, 7.55)	.001
		Non-Dutch		0.25 (0.03, 2.49)	.38

^aOnly the results of the stratified analyses according to the significant moderators of the intervention effects are presented.

^bMultilevel ordinal regression.

^cMultilevel logistic regression.