The role of curriculum dose for the promotion of fruit and vegetable intake among adolescents: results from the Boost intervention

Table 4 Association between student-reported curriculum dose received at school- and class-level and students’ FV intake (n 995)

Variable	Mean increase in intake (g/d)	CI95%	P**
**Analysis of all studentsa, b***
Curriculum dose received at school-level	5	−15.109, 24.483	0.65
Interaction term dose* gender	.		0.84
Interaction term dose* family occupational social class	.		0.01
*Analysis stratified by gendera			.
Curriculum dose received at school-level
Girls	6	−16.818, 28.262	0.63
Boys	1	−21.54, 23.148	0.95
*Analysis stratified by family occupational social classa
Curriculum dose received at school-level
High family occupational social class	17	−9.957, 44.375	0.23
Medium family occupational social class	−11	−38.002, 15.388	0.42
Low family occupational social class	−3	−30.45, 25.606	0.86
Analysis of all students a, b*
Curriculum dose received at class-level	10	0.055, 20.329	0.05
Interaction term dose* gender	.		0.27
Interaction term dose* family occupational social class	.		0.57
*Analysis stratified by gendera
Curriculum dose received at class-level
Girls	4	−9.828, 16.828	0.61
Boys	15	2.844, 26.756	0.02
*Analysis stratified by occupational social classa
Curriculum dose received at class-level
High family occupational social class	8	−10.332, 5.732	0.41
Medium family occupational social class	13	−3.068, 29.468	0.12
Low family occupational social class	4	−15.984, 4.784	0.67

* a Adjusted for differences in FV intake at baseline, schools’ prior “treatment” and dose delivered of other intervention components, b also adjusted for gender and family occupational social class **Significant associations in bold (P < 0.05)

ISSN: 1471-2458