Dietary intake in a randomized-controlled pilot of NOURISH: a parent intervention for overweight children

Abstract

Objective: NOURISH is a community-based treatment program for parents of overweight and obese children (ages 6-11, BMI ≥ 85 th percentile). This study examined the impact of Nourishing Our Understanding of Role modeling to Improve Support and Health on child and parent dietary intake, secondary trial outcomes.

Methods: In Virginia from 2008 to 2009, this randomized controlled pilot was implemented and dietary assessment of parents and children conducted at baseline, post-test, and 6-month follow-up. Parents (85% female, 62% African American, mean BMI=34.1 ± 9.1) were randomized into intervention (n=46) or control (n=50) groups. Children's (mean age=8.6 ± 1.5) mean Body Mass Index percentile was 98.1 ± 2.6. Parents completed 24-hour dietary records for themselves and their child(ren). Repeated measures analyses assessed treatment effects over time. T-tests evaluated within-group changes from baseline to post-test and to follow-up, using a modified intent-to-treat approach.

Results: Both groups reported significant dietary changes, with few treatment effects found. For parents in NOURISH, significant improvements were found in intakes of total kilocalories/day, grams/day of carbohydrates and sugar, and percent calories from protein (p<0.05). Among control group children, significant improvements in total kilocalories/day and grams/day of carbohydrates and sugar were found (p<0.05).

Conclusions: Among parents who self-select into a childhood obesity program, minimal intervention can elicit short-term dietary changes comparable to those of a structured intervention.