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Table 2 Effects of intervention on dietary intake of indicator foods at T2 and T3

From: Effectiveness of a universal parental support programme to promote health behaviours and prevent overweight and obesity in 6-year-old children in disadvantaged areas, the Healthy School Start Study II, a cluster-randomised controlled trial

    T2     T3  
Servingsa the previous weekday n b p 95 % CI Between school class variance σ 2u (s.e.) n b p 95 % CI Between school class variance σ 2u (s.e.)
Separate variables
Fruit juice 190 −0.24 0.16 −0.09 to 0.56 0.19 (0.23) 154 −0.09 0.70 −0.53 to 0.36 0.00 (0.00)
Soft drink/sugar syrup 162 −0.28 0.25 −0.76 to 0.19 0.00 (0.00) 126 0.02 0.95 −0.64 to 0.68 0.00 (0.00)
Flavoured milk 161 −0.47 0.15 −1.11 to 0.16 0.00 (0.00) 131 −0.04 0.92 −0.76 to 0.68 0.00 (0.00)
Vegetables 226 0.15 0.22 −0.09 to 0.38 0.00 (0.00) 196 0.02 0.85 −0.22 to 0.27 0.00 (0.00)
Snacks 195 −0.57 0.08 −1.19 to 0.06 0.00 (0.00) 162 −0.46 0.19 −1.16 to 0.24 1.35 (0.49)
Fruits 241 −0.15 0.13 −0.35 to 0.04 0.00 (0.00) 206 0.03 0.76 −0.18 to 0.25 0.00 (0.00)
Sweets/chocolate 210 −0.38 0.10 −0.82 to 0.07 0.00 (0.00) 173 −0.26 0.29 −0.73 to 0.21 0.00 (0.00)
Cakes/buns/cookies 212 0.00 1.00 −0.51 to 0.51 0.00 (0.00) 179 −0.33 0.12 −0.74 to 0.89 0.00 (0.00)
Girlsb 104 −0.04 0.88 −0.55 to 0.47 0.00 (0.00)      
Boysb 108 −0.95 0.003 −1.58 to -0.32 0.00 (0.00)      
Ice-cream 222 −0.22 0.22 −0.57 to 0.13 0.00 (0.00) 186 −0.22 0.30 −0.65 to 0.20 0.00 (0.00)
Aggregated variablesc
Unhealthy food 230 −0.32 0.01 −0.56 to -0.07 0.19 (0.07) 198 −0.15 0.42 −0.51 to 0.22 0.95 (0.16)
Girlsb       101 0.19 0.43 −0.28 to 0.67 0.79 (0.19)
Boysb       97 −0.50 0.03 −0.94 to -0.06 0.37 (0.14)
Unhealthy drink 214 −0.51 0.01 −0.90 to -0.11 0.26 (0.16) 182 0.05 0.83 −0.39 to 0.49 0.19 (0.20)
Healthy food 248 −0.02 0.79 −0.16 to 0.12 0.00 (0.00) 217 −0.03 0.68 −0.18 to 0.12 0.00 (0.00)
  1. Results of Mixed Poisson Regression adjusted for sex, parental education and baseline value
  2. b = Regression coefficient (beta), p = between intervention and control groups, CI = 95 % confidence interval
  3. aServing sizes (examples below)
  4. Drinks = 1.5 dl
  5. Vegetables = 2 dl grated carrots/cabbage or a big tomato or 2-3 broccoli stalks
  6. Fruits = a small apple or a bunch of grapes (about 10)
  7. Snacks = 1.5 dl of crisps or cheese doodles
  8. Sweets = about 1.5 dl of sweets or 4 pieces from a chocolate bar
  9. Cakes = a small bun or 5 small biscuits
  10. Ice-cream = a small popsicle stick or 1 dl ice-cream
  11. bStratified analysis due to interaction effect (group × sex)
  12. cAggregated variables: unhealthy foods (snacks, sweets/chocolate, ice-cream, cakes/buns/cookies), healthy foods (fruit and vegetables) and unhealthy drinks (soft drink, flavoured milk and fruit juice above one serving)
  13. Subjects are dependent observations between T1 and T2 and between T1 and T3