NCT Number: NCT02487251
Socioeconomic disparities in early childhood place low-income children at 1.5 to 2 times higher risk for obesity compared to middle- to upper-income children. Obesity interventions have turned toward the promotion of family mealtimes. This study will test the effects of 6 intervention components reflecting differing levels of supports to ultimately reduce childhood obesity prevalence and increase the frequency of healthy family mealtimes and improve dietary quality. The investigators will test 6 intervention components in Phase 1 (Screening Phase), resulting in the implementation and evaluation via a randomized controlled trial of a "final" intervention model in Phase 2 (Confirming Phase). The investigators hypothesize that providing low-income families with effective supports to enhance family capability to plan and implement family mealtimes will lead to improvements in children's adiposity indices, dietary quality and frequency of family meals.
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Interventional
Not applicable
University of Michigan, Ann Arbor, Michigan, United States
This study is comprised of two phases. In the first phase of the study, we will test associations between participation in combinations of 6 intervention components reflecting differing levels of practical resources to increase the frequency of healthy family mealtimes, improve children's dietary quality and ultimately reduce childhood obesity prevalence. Phase 1 utilizes the Multiphase Optimization Strategy (MOST) design to test combinations of the 6 intervention components which include: (1) Meal Delivery: the home delivery of pre-made healthy family meals including recipes weekly (2) Ingredient Delivery: the home delivery of ingredients and recipes to make healthy family meals weekly; (3) Community Kitchen: community kitchen sessions in which families prepare healthy meals with recipes to take home weekly; (4) Didactics: nutrition education classes using the Preschool Obesity Prevention Series (POPS) curriculum (5) Cooking Lessons: cooking lessons/demonstrations with recipes weekly; and (6) Cookware/Flatware: delivery of flatware/ cookware to utilize for family meals delivered at the beginning of the intervention. The goal of Phase 1 is to identify the intervention components most robustly related to decreased BMI z-score, increased dietary quality and frequency of family meals. Phase 1 will enroll approximately 500 parents of preschoolers. The goal of Phase 2 is to test the selected intervention components (identified in Phase 1) in a randomized controlled trial with approximately 250 participants. Participants in both phases will be enrolled through Head Start programs and/or university research recruitment platforms, social media, and posted flyers. The intervention period in Phase 1 will be 8 weeks, and the intervention period in Phase 2 will be expanded to 12 weeks.
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Exclusion criteria
Participants will receive or engage in a variety of supports for family mealtimes in Phase 1 (e.g., receipt of prepared meals, receipt of cookware, informational supports, classes). In Phase 2 of the study participants received two prepared meals per week for 12 weeks and received a comprehensive set of cookware at the beginning of the intervention period.
Participants receive no supplemental information on family mealtimes beyond what is already currently received
Time frame: Prior to the implementation of the intervention (Baseline) and immediately post the 12 week intervention period (Post).
Research staff measured children without shoes or heavy clothing. Measures were taken twice and averaged. BMI was calculated and child BMIz derived. Child obesity was defined as BMI > 95th percentile and overweight/obesity defined as a BMI > 85th percentile for age and sex. Note that due to the COVID-19 pandemic, data on BMIz were not collected beginning in March 2020.
The z-score is based on United States Centers for Disease Control growth references for children. A z-score of 0 reflects the 50th percentile based on the US CDC children's reference growth charts. A z-score < -1.645 indicates that the child is underweight. A healthy BMIz score is between -1.645 and 1.036. BMIz >1.036 = criteria for overweight; BMIz >1.645 = criteria for obese
Time frame: Prior to the implementation of the intervention (Baseline) and immediately post the 12 week intervention period (Post).
Report of the child's usual eating habits (fruit) using the Pennington Remote Food Photography method. When using the RFPM and SmartIntake app, parents place a reference card next to the child's food and capture images of the food selection and plate waste. The parent identifies foods that are not easily identified by wrappers or containers by typing a food description into a text box. These data and food images are automatically sent by the app to the server-based Food Photography Application©, which is used to manage the data collection process and analyze the food images to estimate energy and nutrient intake. First, the foods in the images were linked to a match from the United States Department of Agriculture's Food and Nutrient Database for Dietary Studies (FNDDS; USDA, 2018). Second, a standard portion image, which contains an image of the same or a similar food that was carefully weighed to represent various portion sizes, was identified from an archived food image database.
Time frame: Prior to the implementation of the intervention (Baseline) and immediately post the 12 week intervention period (Post).
Report of the child's usual eating habits (fruit) using the Pennington Remote Food Photography Method
Time frame: Prior to the implementation of the intervention (Baseline) and immediately post the 12 week intervention period (Post).
Report of the child's usual eating habits using the Block Kids 2004 Food Frequency. Parents self-reported their children's dietary intake using the Block Dietary Data Systems Kids Food Screener-Last Week (BKFS, Version 2), a 41-item survey assessing nutrients and food groups in children aged 2-17 years (Hunsberger et al., 2015). Nutrients and food groups are reported from multiple items summed from each survey construct. The current study operationalized dietary quality in cup equivalent as reflecting the following food groupings as indicators of higher quality dietary patterns (Haya et al., 2013): fruit/fruit juice
Time frame: Prior to the implementation of the intervention (Baseline) and immediately post the 12 week intervention period (Post).
Parents self-reported their children's dietary intake using the Block Dietary Data Systems Kids Food Screener-Last Week (BKFS, Version 2), a 41-item survey assessing nutrients and food groups in children aged 2-17 years (Hunsberger et al., 2015). Nutrients and food groups are reported from multiple items summed from each survey construct. The current study operationalized dietary quality in cup equivalent as reflecting the following food groupings as indicators of higher quality dietary patterns (Haya et al., 2013): vegetables excluding potatoes and legumes.
Time frame: Prior to the implementation of the intervention (Baseline) and immediately post the 12 week intervention period (Post).
Using a 1-item question, parents reported how many nights in the week the parent and focus child are dinner together in the same place at home (e.g., in the kitchen) at the same time for most of the meal.
Michigan State University
Other
Effectiveness of Differing Levels of Support for Family Mealtimes on Obesity Prevention Among Head Start Preschoolers
Acronym: SimplyDinner
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