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Table 3 Prevalence, incidence, and relative odds of overweight or obesity 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

  Baseline Implementation
year 1
Follow-up Implementation
year 2
Year 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  
% % Adj. OR
(95%CI)
% % Adj. OR
(95%CI)
% % Adj. OR
(95%CI)
% % Adj. OR
(95%CI)
Prevalence of overweight or obesity in the Autumn
 Age, y
  2–5 13 20 0.6
(0.4–0.9)*
22 33 0.6
(0.4–0.9)*
27 28 0.9
(0.6–1.5)
26 29 0.8
(0.5–1.2)
  3 10 16 0.6
(0.3–1.3)
22 33 0.6
(0.4–0.9)*
28 28 1.0
(0.6–1.8)
27 32 0.8
(0.5–1.4)
  4 17 26 0.6
(0.4–1.0)*
22 35 0.5
(0.3–0.9)*
27 30 0.8
(0.5–1.4)
29 32 0.9
(0.5–1.4)
Incidence of overweight or obesity between Autumn and Spring
 Age, y
  2–5 3.8 3.6 1.1
(0.5–2.3)
8.1 10.3 0.7
(0.3–1.5)
5.2 6.7 0.7
(0.4–1.2)
6.0 1.6 5.0
(1.2–1.4)*
  3 3.2 3.9 0.8
(0.3–2.4)
5.0 9.6 0.4
(0.1–1.1)
6.8 6.5 1.2
(0.4–3.5)
7.0 1.1 9.1
(0.9–92.6)
  4 4.3 3.1 1.4
(0.4–5.7)
10.2 8.8 1.2
(0.4–3.9)
4.2 7.1 0.4
(0.2–0.9)*
5.0 2.9 2.4
(0.4–12.7)
  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; Adj. OR (95%CI): Adjusted odds ratio with 95% confidence interval; Overweight or obese was defined as age-and sex-specific BMI percentile ≥85%; Adjusted odds ratios were estimated using year-specific logistic regression models with robust standard errors, controlling for age, sex, and/or Autumn status; *Estimates for CCHP + HAP centers differed significantly from CCHP + HAP Delayed centers (reference), P < 0.05