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

Table 2 Number of child care centers and children that participated in bi-annual CCHP BMI screenings by year and group allocation

Year	Baseline		Implementation year 1		Follow-up		Implementation year 2
Year	2011–2012		2012–2013		2013–2014		2014–2015
Group Allocation	CCHP +HAP	CCHP +HAP Delayed	CCHP +HAP	CCHP +HAP Delayed	CCHP +HAP	CCHP +HAP Delayed	CCHP +HAP	CCHP +HAP Delayed
HAP Exposure	No	No	Yes	No	No	No	Yes	Yes
Number of child care centers randomized for the HAP pilot	19	24	19	24	19	24	19	24
Number of child care centers with complete BMI change data	12	18	14	17	17	20	15	19
Number of children enrolled in centers with complete data	522	380	430	361	529	416	502	353
Number of children by age
2y	26	55	17	28	26	36	20	47
3y	207*	153	156	155	205	149	195	137
4y	282*	172	251*	175	293	223	251	154
5y	7	0	6	3	5	8	36	15

Study time was defined according to academic calendar year. CCHP Child Care Health Program, BMI Body mass index, HAP Healthy Apple Program; Child care centers were randomly allocated to the CCHP + HAP or CCHP + HAP Delayed group in Autumn 2012. Table 2 shows the total number of child care centers that were randomized, the number of centers that participated in both annual Autumn and Spring BMI screenings each year, and the number of children that participated in both BMI screenings each year, by intervention allocation. Complete data from both BMI screenings were required to calculate the primary outcome, annual change in BMI percentile between the Autumn and Spring screenings. Child care centers and children with missing BMI change data in any given year were excluded from the evaluation analyses for that year. *The age of children served differed significantly by intervention group assignment, P < 0.05

ISSN: 1471-2458