Participants for this study were recruited from family
day care homes participating in the Healthy Home Child
Care Project, a cluster randomised trial to promote
healthy eating and regular physical activity in children
attending family day care homes [11]. Family day care
homes were recruited through five Child Care Resource
and Referral (R&R) hubs serving seven economically
diverse counties in Oregon, USA. They were randomly
selected using the Oregon Child Care R&R Network
database as a sampling frame. Prior to selection, the
sample was stratified by R&R hub and homes within
each stratum were sampled with a probability proportional
to the total number of family day care homes operating
in the hub. Initially, 63 family day care homes
enrolled in the study. Of those, five had too few children
under their care when data collection began (less than
four children) and two others closed their business before
data collection, which left a sample of 56 family day
care homes. [11]. All children between the ages 2–5
years attending these family day care homes were invited
to take part in the study. The number of eligible children
within each home ranged from one to six, with a median
of four child participants per family day care home. Data
for the current study were collected during baseline assessments
which took place between October 2010 and
March 2011. Of the 336 children eligible to participate
in the study, 303 (90 %) completed baseline assessments
for height, weight, and body mass index (BMI). Of this
number, 173 (51.5 %) parents or caregivers completed a
take-home questionnaire measuring socio-demographic
information, parenting practices related to healthy eating
and physical activity, and their child’s FV consumption
and PA levels. Ethical approval for the Healthy Home
Child Care Project was obtained from the Oregon State
University Institutional Review Board, and before participating,
family day care providers and the children's
parents provided written informed consent.