The goal of this 12-month cluster clinical trial is to evaluate if improving child care providers' health behaviors using an online provider weight management program elicits meaningful change in dietary and physical activity behaviors in 2-5-year-old preschool children in their care and the child care environment. The study sample will include 84 child care centers. Including: 84 center directors, 168 2-5-year-old classroom teachers, 672 2-5-year old children. Some centers will do only the online Nutrition and Physical Activity Self-Assessment for Child Care (Go NAPSACC) program. This program works with child care center directors to make changes to their center around child nutrition and physical activity to foster healthier habits for the children enrolled in their care. Other centers will do Go NAPSACC Enhanced. This will include center directors doing Go NAPSACC and 2-5 year old teachers doing an online weight management program with support. Researchers will compare centers in Go NAPSACC with centers in Go NAPSACC Enhanced to see if there are greater improvements in children's diet quality and physical activity, as well as the nutrition and physical activity environment of centers in the Go NAPSACC Enhanced group. Additionally, they will see if there are greater improvements in teachers' weight, diet quality, and physical activity in centers using Go NAPSACC Enhanced.
This study is a two-group clustered randomized trial to evaluate if improving child care providers' health behaviors elicit meaningful change in dietary and physical activity behaviors in 2-5-year-old preschool children in their care and the child care environment. The investigators will randomize (by center, 1:1 ratio) 84 child care centers, 168 child care providers, and 672 children from these centers to one of two groups (standard Go NAPSACC or Go NAPSACC enhanced) for a 12 month trial (6 months provider weight loss; 6 months no contact follow-up). The specific aims are to 1) improve dietary quality and physical activity behaviors of 2-5-year-old children. 2) improve weight and weight related behaviors (dietary intake and physical activity) of child care providers, and 3) improve the nutrition and physical activity environments at child care centers. Participants randomized to standard Go NAPSACC will receive support for center wide changes focusing on engaging center directors and orienting them to Go NAPSACC, given access to interactive online tools that guide change, and providing ongoing support as they work to adopt evidence-based healthy weight practices. Participants randomized to Go NAPSACC enhanced will receive the traditional Go NAPSACC program (previously described); in addition, child care providers will receive a weight management intervention. The weight management intervention will be guided by social cognitive theory and integrate techniques known to be most effective for changing diet and physical activity behaviors, including intention formation, goal setting (≥5% weight loss at 6 mos. and no regain at 12 mos.), self-monitoring (diet, physical activity, weight), and feedback. Participants will receive a progressive physical activity program. The physical activity program (walking, jogging, biking, etc.) will be progressive and prescribed at a moderate intensity as recommended the "Physical Activity Guidelines for Americans" of 150 min/wk. Starting active minutes goal will be based on self-reported current activity levels: 0 min/wk = 10 min/day goal; 1-59 min/wk = 15/min/day goal, \>60 min/wk = 20 min/day goal. The reduced energy diet will follow the Stop Light Diet approach which categorizes foods by energy content: green (low energy: consume freely), yellow (moderate energy: consume in moderation) and red (high energy: consume sparingly). Starting weight will be used to suggest tailored red food limits: Weight Loss - \<250lbs = 3; 250 - \<300 = 4; \>300 = 5. Weight Maintenance - \<250 = 4; 250 - \<300 = 5; \>300 = 6. The stop light diet approach is suitable for all participants (including for whom weight loss may not be recommended \[e.g., BMI \<25 kg/m2\] as it does not specifically prescribe a calorie deficit but focuses on improvement of diet quality.The effectiveness of the intervention will be evaluated by comparing differences between the Go NAPSACC enhanced and standard Go NAPSACC control groups in child's physical activity and diet quality at 6 mos. (primary outcomes). Primary and secondary aims will be analyzed using maximum likelihood methods. Multi-level linear mixed models with repeated measures will be used to estimate change at 6 and 12 mos. and to test for statistical differences across groups in changes over time. Models will include random effect for cluster to account for covariance between participants within the same center as well as fixed effects for time, trial arm, time\*arm interaction. To further explore the effect of the intervention, these analyses will be followed by sensitivity analyses that adjust for baseline variables distributed differently between intervention groups and examine completers only. Secondary outcomes will also be examined as longitudinal covariates and asses their association with longitudinal measures of primary outcomes, controlling for treatment, at 6 and 12 months.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Enrollment
924
Centers will receive the Go NAPSACC program as well as an online weight management intervention that focuses on personal weight management strategies. Participants will have access to materials that will support their adoption of evidence-based strategies for their weight management or loss goal. Behavior change strategies used are meant to increase intervention adherence and improve weight loss.
Go NAPSACC is an online evidence-based behavioral intervention that supports centers as they adopt center-wide healthy weight practices. It anticipates producing change in the child care environment through fostering best practices in center provisions, practices, policies, and professional development around child nutrition and physical activity and in turn foster healthier habits in the children in their care.
UNC Center for Health Promotion and Disease Prevention
Chapel Hill, North Carolina, United States
Change in Children's Diet Quality at Child Care from Baseline to 6 months
Dietary intake of food consumed by 2-5-year-old children will be assessed via the Diet Observation in Child Care (DOCC) by a trained and certified data collector in the 2-5-year old classroom. Dietary intake data will be used to calculate Healthy Eating Index 2015 (HEI2015) scores to produce an estimate of children's diet quality. Scores range from 0-100, where scores closer to 100 indicate higher diet quality.
Time frame: Baseline and 6 months post-intervention
Change in Children's Non-sedentary Time at Child Care from Baseline to 6 months
Physical activity of children 2-5-years old will be assessed by a GT3X+ accelerometer. Children are fitted on the first day of data collection and wear the accelerometer on their non-dominant wrist for 24 hours per day over 7 consecutive days. Cut-points developed for preschool-aged children will be applied to children's accelerometer data to calculate minutes spent in different levels of physical activity (total non-sedentary, sedentary, light, moderate, and vigorous). Non-sedentary time (light, moderate, and vigorous combined) is the primary outcome for this study.
Time frame: Baseline and 6 months post-intervention
Change in Children's Diet Quality at Child Care from 6 to 12 months
Dietary intake of food consumed by 2-5-year-old children will be assessed via the Diet Observation in Child Care (DOCC) by a trained and certified data collector in the 2-5-year old classroom. Dietary intake data will be used to calculate Healthy Eating Index 2015 (HEI2015) scores to produce an estimate of children's diet quality. Scores range from 0-100, where scores closer to 100 indicate higher diet quality.
Time frame: 6 months post-intervention and 12 months post-intervention
Change in Children's Non-sedentary Time at Child Care from 6 to 12 Months
Physical activity of children 2-5-years old will be assessed by a GT3X+ accelerometer. Children are fitted on the first day of data collection and wear the accelerometer on their non-dominant wrist for 24 hours per day over 7 consecutive days. Cut-points developed for preschool-aged children will be applied to children's accelerometer data to calculate minutes spent in different levels of physical activity (total non-sedentary, sedentary, light, moderate, and vigorous). Non-sedentary time (light, moderate, and vigorous combined) is the physical activity outcome.
Time frame: 6 months post-intervention and 12 months post-intervention
Change in Child Care Providers Diet Quality
Dietary intake of food consumed by child care providers will be assessed by self-report through the Automated Self-Administered Dietary Assessment Tool (ASA24) over 2 weekdays and 1 weekend day. Dietary intake data will be used to calculate Healthy Eating Index 2015 (HEI2015) scores to produce an estimate of children's diet quality. Scores range from 0-100, where scores closer to 100 indicate higher diet quality. Assessed at baseline and post-intervention at months 6 and 12.
Time frame: Baseline through 12 months post intervention
Change in Child Care Providers Physical Activity
Physical activity of child care providers will be assessed by a GT3X+ accelerometer. Child care providers are fitted on the first day of data collection and wear the accelerometer on their non-dominant wrist for 24 hours per day over 7 consecutive days. Cut-points developed for adults will be applied to child care providers accelerometer data to calculate minutes spent in different levels of physical activity (sedentary, light, moderate, and vigorous). Assessed at baseline and post-intervention at months 6 and 12.
Time frame: Baseline through 12 months post intervention
Change in Child Care Providers weight
Anthropometrics will be collected in the morning of the onsite visit while participants are in light clothing with shoes removed. Weight will be measured to the nearest 0.1 kg using a Seca digital scale (calibrated quarterly; seca, Chino, CA). Assessed at baseline and post-intervention at months 6 and 12.
Time frame: Baseline through 12 months post intervention
Change in Nutrition Environment Score
Each center's nutrition environment will be assessed by trained and certified data collectors who spend two days at the center in a participating classroom using the Environment and Policy Assessment and Observation (EPAO) and Document Review. An overall nutrition environment score will be derived with scores ranging from 0-21, where higher scores indicate better (more supportive) nutrition and physical activity environments. Assessed at baseline and post-intervention at months 6 and 12.
Time frame: Baseline through 12 months post intervention
Change in Physical Activity Environment Score
Each center's physical environment will be assessed by trained and certified data collectors who spend two days at the center in a participating classroom using the Environment and Policy Assessment and Observation (EPAO) and Document Review. An overall physical activity environment score will be derived with scores ranging from 0-36, where higher scores indicate better (more supportive) nutrition and physical activity environments. Assessed at baseline and post-intervention at months 6 and 12.
Time frame: Baseline through 12 months post intervention
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