Changes in Child Weight, Behaviors, and Family Dynamics during Parental Participation in a Medical Weight Management Program: A Longitudinal Uncontrolled Pilot Study.

Background: There is limited evidence of the effects of parental participation in outpatient medical weight management (MWM) programs on children. The aims of the project were to (1) identify time effects from parental participation in the MWM program on changes in child weight trajectories, healthy and unhealthy weight control practices, physical and sedentary activity, parental restrictive feeding and pressure to eat, and family functioning and communication and (2) determine differences based on child factors. Methods: A longitudinal uncontrolled pilot study was conducted, in which parent-child (ages 7-19) dyads completed assessments at parents' MWM program initiation, 3 months (mid-program), 6 months (end of program), and 12 months to determine sustained effects. Repeated measures analysis of variance (ANOVA) was completed using a mixed multilevel modeling approach using Restricted Maximum Likelihood estimation method; each outcome was additionally analyzed with child baseline weight status, age group, and sex as between-subjects factors. Results: Fifty three dyads met inclusion criteria, 23 completed the initial assessment (enrollment: 43.3%), and 13 completed the 12-month assessment (retention: 56.5%). Significant effects over time were observed for decreased parental restrictive feeding (p < 0.038) over 12 months, and group by time effects were observed for increased restrictive feeding for female compared to male children (p = 0.025) over 12 months. Marginally significant group by time effects were found for increased impaired family functioning (p = 0.054) and communication (p = 0.054) for children with overweight/obesity compared to healthy weight children over 12 months. Conclusions: Female children and children with overweight/obesity may experience increased negative family dynamics (restriction of food, family functioning, and communication) through parental MWM programs.

Changes in Parent and Child Skin Carotenoids, Weight, and Dietary Behaviors over Parental Weight Management.

(1) The objective was to determine changes in parent-child (ages 7-18) dyad skin carotenoids spanning parental participation in a medical weight management program (WMP), and associations with parent BMI, child BMIz, fruit/vegetable intake, and family meals and patterns. (2) The study design was a longitudinal dyadic observational study with assessment at WMP initiation, mid-point (3-months), and conclusion (6-months). Twenty-three dyads initiated the study, 16 provided assessments at 3 months, and 11 at program conclusion. Associations between parent and child carotenoids (dependent variables) and parent BMI, child BMIz, increases in fruit/vegetable intake, and family meals and patterns were analyzed using Pearson's correlations and independent samples t-tests. Repeated measures ANOVA assessed changes in weight status and carotenoids. (3) Parents experienced significant declines in BMI and skin carotenoid levels over 6 months. Parent and child carotenoids were correlated at each assessment. At initiation, parent BMI and carotenoids were inversely correlated, child carotenoids were associated with increased family meals, and never consuming an evening fast food or restaurant meal were associated with increased parent and child carotenoids. (4) Results demonstrate skin carotenoids are strongly correlated within dyads and may be associated with lower parental BMI and positive family meal practices.