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Table 4 Mean (SE) changes in child BMI percentile and BMI z-score from Autumn to Spring by year and group allocation

From: Healthy apple program to support child care centers to alter nutrition and physical activity practices and improve child weight: a cluster randomized trial

Year Baseline Implementation year 1 Follow-up Implementation year 2
2011–2012 2012–2013 2013–2014 2014–2015
Group allocation CCHP +HAP
(n = 522)
CCHP +HAP Delayed
(n = 380)
CCHP +HAP
(n = 430)
CCHP +HAP Delayed
(n = 361)
CCHP +HAP
(n = 529)
CCHP +HAP Delayed (n = 416) CCHP +HAP
(n = 502)
CCHP +HAP Delayed
(n = 353)
HAP exposure No No Yes No No No Yes Yes
Change in BMI percentile
 Age, y
  2–5 1.7 (0.6) 1.0 (0.7) −2.2 (0.7) −0.4 (0.7) −2.7 (0.6) −0.1 (0.6) −0.7 (0.7) −2.1 (0.7)
  3 1.2 (1.0) 2.7 (1.2) −2.5 (1.1) 0.9 (1.1) −2.1 (1.0) 0.1 (0.9) −0.3 (1.0) −1.6 (1.2)
  4 1.2 (0.8) −0.7 (0.9) −1.6 (0.9) −2.1 (0.9) −3.1 (0.8) −0.9 (0.0) −0.3 (1.0) −1.1 (1.0)
Change in BMI z-score
 Age, y
  2–5 0.05 (0.02) 0 (0.02) −0.1 (0.02) −0.03 (0.03) −0.1 (0.02) −0.02 (0.02) −0.04 (0.02) −0.09 (0.02)
  3 0.03 (0.03) 0.05 (0.04) −0.1 (0.04) 0.01 (0.04) −0.08 (0.04) 0 (0.03) −0.04 (0.04) −0.08 (0.05)
  4 0.03 (0.03) −0.06 (0.03) −0.1 (0.03) −0.1 (0.04) −0.1 (0.03) −0.05 (0.04) −0.02 (0.04) −0.06 (0.03)
  1. Study time was defined according to academic calendar year. CCHP Child Care Health Program, HAP Healthy Apple Program; Child care centers were randomly allocated to the CCHP + HAP or CCHP + HAP Delayed group in Autumn 2012; n: number of children; BMI: Body mass index; Mean changes are unadjusted. All ages (2-5y) are included in the analysis. Age-specific estimates for age 2 and age 5 are not shown, due to small numbers (n < 5)