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Table 3 Association between teacher-reported curriculum dose delivered at school-level and students’ FV intake (n 995)

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

Variable

Estimate (g/d)

CI95%

P**

Analysis of all students a, b*

   

Curriculum dose delivered at school-level

  

0.75

Low dose

Ref.

  

Medium dose

31

−85.81, 148.61

 

High dose

51

−77.88, 179.28

 

Interaction term dose* gender

.

 

0.18

Interaction term dose* family occupational social class

.

 

0.04

Analysis stratified by gendera*

   

Curriculum dose delivered at school-level

   

Girls

   

Low dose

Ref.

 

.

Medium dose

−29

−172.66, 115.46

0.70

High dose

−2

−135.57, 131.77

0.97

Boys

   

Low dose

Ref.

 

.

Medium dose

101

−34.64, 236.24

0.16

High dose

65

−57.9, 187.1

0.32

Analysis stratified by family occupational social class a *

   

Curriculum dose delivered at school-level

   

High family occupational social class

   

Low dose

Ref.

 

.

Medium dose

138

−52.42, 328.22

0.18

High dose

35

−150.51, 221.11

0.72

Medium family occupational social class

   

Low dose

Ref.

 

.

Medium dose

−13

−186.66, 159.86

0.88

High dose

41

−114.72, 196.92

0.61

Low family occupational social class

   

Low dose

Ref.

 

.

Medium dose

−34

−217.76, 149.16

0.71

High dose

−17

−159.97, 126.97

0.82

  1. * 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)