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Table 2 Results of the mixed linear analyses of continuous outcomes of fruit, snacks, and breakfast consumption

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

 

Experimental condition

Control condition

B short-term effect 1

B longer-term effect 1

 

Uncorrected mean (SD)

Uncorrected mean (SD)

  
 

T0

T1

T2

T0

T1

T2

  
 

(n = 1117)

(n = 1028)

(n = 1016)

(n = 758)

(n = 681)

(n = 682)

  

Fruit

        

Fruit frequency

0.98

1.13

1.03

1.11

1.11

1.01

0.048***

0.033***

(servings a day)

(0.80)

(0.81)

(0.81)

(0.86)

(0.92)

(0.85)

(0.023-0.053)

(0.017-0.048)

Yesterday’s fruit consumption

0.97

1.23

1.18

1.02

1.16

1.08

0.023*

0.026*

(servings)

(0.90)

(0.94)

(0.98)

(0.86)

(0.99)

(0.92)

(0.002-0.044)

(0.005-0.047)

Fruit juice frequency

1.00

1.09

1.06

1.02

0.98

1.01

0.022*

0.013

(glasses a day)

(0.95)

(0.96)

(0.98)

(0.97)

(0.94)

(0.96)

(0.004-0.041)

(-0.005-0.032)

Snacks

        

Snack consumption frequency

1.90

1.86

1.84

1.86

1.90

1.87

0.001

-0.007

(times a day)

(1.57)

(1.50)

(1.56)

(1.51)

(1.67)

(1.69)

(-0.020-0.020)

(-0.026-0.013)

Yesterday’s snack consumption

1.97

2.09

1.99

1.99

2.11

2.04

0.014

0.004

(number of snacks)

(1.51)

(1.59)

(1.60)

(1.54)

(1.74)

(1.74)

(-0.011-0.039)

(-0.021-0.030)

 

T0

T1

T2

T0

T1

T2

B short-term effect 1

B longer-term effect 1

 

(n = 769)

(n = 769)

(n = 724)

(n = 486)

(n = 484)

(n = 467)

  

Breakfast 2

        

Energy

302.9

300.7

302.4

314.3

299.4

298.0

0.023

0.027

(kcal)

(163.9)

(146.2)

(144.4)

(169.0)

(158.3)

(154.7)

(-0.005-0.051)

(-0.001-0.056)

Fat

9.14

9.30

9.42

9.48

9.29

9.48

0.013

0.013

(grams)

(7.44)

(7.08)

(6.96)

(8.01)

(7.33)

(7.70)

(-0.030-0.055)

(-0.032-0.058)

Saturated fat

4.35

4.47

4.55

4.61

4.60

4.80

0.005

0.006

(grams)

(3.87)

(3.90)

(3.80)

(4.35)

(4.19)

(4.29)

(-0.039-0.046)

(-0.037-0.049)

Carbohydrates

40.93

40.14

40.26

42.10

40.02

39.06

0.025

0.039

(grams)

(24.41)

(19.90)

(19.64)

(21.82)

(21.00)

(20.75)

(-0.005-0.054)

(0.008-0.069)*

Protein

11.72

11.41

11.50

12.06

11.51

11.68

0.006

0.007

(grams)

(7.32)

(6.75)

(6.81)

(8.14)

(7.43)

(7.17)

(-0.025-0.037)

(-0.025-0.039)

Fiber

2.87

2.85

2.81

3.03

2.77

2.84

0.035

0.041

(grams)

(2.53)

(2.45)

(2.05)

(2.11)

(2.03)

(2.26)

(0.005-0.064)*

(0.011-0.072)**

  1. 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 * P < 0.05; **P < 0.01; ***P < 0.001.
  2. 2 Breakfast nutrients were calculated for students who had consumed breakfast.