Six-months follow-up of a cluster randomized trial of school-based smoking prevention education programs in Aceh, Indonesia

Table 2 Knowledge and attitude scores, intentions and behaviors at 6 months follow-up and the baseline adjusted program effects (β) (n = 427)

Outcomes	Health intervention				Islamic intervention				Health x Islamic Interaction		ICC^f
Outcomes	Health (n = 219) (mean ± SD)	Non health (n = 208) (mean ± SD)	β ± SE^a	p value^d	Islamic (n = 211) (mean ± SD)	Non Islam (n = 216) (mean ± SD)	β ± SE^b	P value^d	β ± SE^c	p value^e	ICC^f
Health Knowledge	11.1 ± 1.9	10.2 ± 2.6	4.3 ± 0.4	<0.001	11.3 ± 2.0	10.1 ± 2.5	3.7 ± 0.4	<0.001	−3.2 ± 0.9	<0.001	0.10
Islamic Knowledge	11.7 ± 2.7	13.0 ± 2.4	1.1 ± 0.4	0.01	13.2 ± 2.7	11.6 ± 2.3	2.2 ± 0.5	<0.001	−2.3 ± 0.9	<0.01	0.09
Attitude	38.8 ± 7.3	38.2 ± 8.6	−11.5 ± 1.8	<0.001	36.7 ± 7.1	40.3 ± 8.4	−6.0 ± 1.9	<0.01	6.1 ± 3.2	0.07	0.07
	Health intervention				Islamic intervention				Health x Islamic Interaction		ICC^f
	Health n (%)	Non health n (%)	OR (95 % CI)^a	p value^d	Islamic n (%)	Non Islam n (%)	OR (95 % CI)^b	p value^d	Health x Islamic Interaction		ICC^f
Intention to smoke next year	10 (4.6)	16 (7.7)	0.4 (0.1,1.3)	0.14	8 (3.8)	18 (8.3)	0.4 (0.1,1.6)	0.20	*		0.12
Intention to smoke in senior high school	13 (5.9)	20 (9.6)	0.4 (0.1, 1.3)	0.13	9 (4.3)	24 (11.1)	0.3 (0.1, 1.2)	0.10	*		0.12
Intention to smoke over 50	17 (7.8)	22 (10.6)	0.5 (0.2, 1.2)	0.13	15 (7.1)	24 (11.1)	0.6 (0.2, 1.4)	0.24	*		0.07
Past week smoking	3 (1.4)	4 (1.9)	0.5 (0.2,1.5)	0.24	0 (0)	7 (3.2)	0.0 (0)	**	*		0.24
Past month smoking	6 (2.7)	8 (3.9)	0.4 (0.2, 1.0)	0.04	1 (0.5)	13 (6.0)	0.1 (0.0, 0.8)	0.03	*		0.10
Lifetime smoking	51 (23.3)	45 (21.6)	0.9 (0.4,2.2)	0.84	33 (15.6)	63 (29.2)	0.5 (0.2, 1.3)	0.16	*		0.15

Note: The groups were classified into two factors: (1) Islam (Islamic-based program), which comprises the Islamic and combined groups, (2) health (health-based program), which comprises the health and combined groups
^aMain effects of Health intervention program using linear mixed effects model, adjusted for baseline scores
^bMain effects of Islamic intervention program using linear mixed effects model, adjusted for baseline scores
^cInteraction between health and Islamic program represents the additional effect of being in the combined group beyond the separate main effects presented for health and Islamic programs
^dp value for main effects from mixed effects model
^ep value for interaction between health x Islamic programs
^fICC = Intra-class correlations coefficients, from mixed effects random intercept model
*Interaction health x Islamic were not assessed because main effects of health and Islamic were non-significant
**Non-estimable

ISSN: 1471-2458