Healthier food choices as a result of the revised healthy diet programme Krachtvoer for students of prevocational schools

Table 4 Intervention effects in subgroups on continuous outcomes regarding fruit, snack, and breakfast intakes, comparing the experimental group (n = 1117) with the control group (n = 758)

	Intervention effects among first and second year students				Intervention effects among students with more and less favourable baseline dietary intakes				Intervention effects among lower and higher educational subtracks
	First-year	Second-year	First-year	Second-year	Low baseline intakes	High baseline intakes	Low baseline intakes	High baseline intakes	Lower educational subtrack	Higher educational subtracks
	Short-term effects B (CI)¹		Longer-term effects B (CI)¹		Short-term effects B (CI)¹		Longer-term effects B (CI)¹		Short-term effects B (CI)¹
Fruit
Fruit juice frequency	-	-	-	-	-	0.034**	-	-	-	-
(glasses a day)						(0.009-0.059)
Breakfast ²
Total energy	0.056*	-	0.053*	-	-	-	-	-	-	0.044*
(kcal)¹	(0.013-0.098)		(0.012-0.094)							(0.008-0.080)
Total fat	-	-	0.072*	-	-	-	-	-	-	-
(grams)			(0.008-0.137)
Total saturated fat	-	-	0.064*	-	-	-	-	-	-	-
(grams)			(0.003-0.126)
Total carbohydrates	-	-	-	-	-	-	-	-	-	0.046*
(grams)										(0.007-0.086)
Total fiber	0.085***	-	-	-	-	-	0.043*	-	-	-
(grams)	(0.041-0.129)						(0.006-0.081)
	Short-term OR		Longer-term OR		Short-term OR		Longer-term OR		Short-term OR
	First-year	Second-year	First-year	Second-year	Unfavourable baseline intakes	Favourable baseline intakes	Unfavourable baseline intakes	Favourable baseline intakes	Lower educational subtrack	Higher educational subtracks
Snacks
Ice-cream	-	-	-	-	10.00***	0.12***	-	-	0.59*	-
					(6.92-14.5)	(0.08-0.18)			(0.38-0.91)

¹Reported intervention effects were corrected for a random intercept of measurement, student, and class, and the fixed factors of gender, year, educational track, SEP, and ethnicity.
²Breakfast nutrients were calculated for students who had consumed breakfast.
* P < 0.05; **P < 0.01; ***P < 0.001.

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