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Table 2 Intervention effects by mixed model analysis of the BRA-study on vegetable outcome at follow-up 1

From: Effects of a cluster randomized controlled kindergarten-based intervention trial on vegetable consumption among Norwegian 3–5-year-olds: the BRA-study

  INTERVENTION EFFECT*
  Estimate (95% CI) P
Frequency of vegetable intake (times/day)a 0.15 (−0.2, 0.5) 0.408
Variety in vegetable intake (types/month)a 0.09 (−0.7, 0.9) 0.820
Total vegetable amount (grams/day)b 10.0 (− 19.6, 39.5) 0.507
Vegetable amount from the direct observation (grams/day)c 13.3 (−0.2, 26.9) 0.054
  1. *Fixed effects parameter estimates. Adjusted for kindergarten clustering, time, child gender, child year of birth, maternal education and kindergarten ownership (private or public). Participants were included in the analyses if they had data on either baseline and/or follow-up 1 and if they had data on all adjusting variables
  2. aFrequency and variety of vegetable intake was calculated based on data from Q1 (n = 229 in the control group and n = 218 in the intervention group)
  3. bTotal vegetable amount was calculated based on data from the direct observation when in kindergarten and the 24-h recall when at home (Q2) (n = 160 in the control group and n = 137 in the intervention group)
  4. cObserved amount of vegetables consumed in kindergarten was based on the direct observation when in kindergarten (n = 218 in the control group and n = 217 in the intervention group)