The Moderating Effects of the Families Improving Together (FIT) for Weight Loss Intervention and Parenting Factors on Family Mealtime in Overweight and Obese African American Adolescents.

Few studies have integrated positive parenting and motivational strategies to address dietary outcomes such as frequency of family mealtime. The Families Improving Together (FIT) for Weight Loss trial was a randomized group cohort trial (n = 241 dyads) testing the efficacy of integrating a motivational plus family weight loss (M + FWL) intervention for healthy eating and weight loss in overweight and obese African American adolescents. The current study tested the interaction of parenting styles (responsiveness, demandingness) and parental feeding practices (restriction, concern about child's weight, pressure to eat) and the FIT intervention on frequency of family mealtime over 16 weeks. Multilevel modeling demonstrated significant interactions between the group-based treatment and responsiveness (p = 0.018) and demandingness (p = 0.010) on family mealtime. For the group-based M + FWL intervention, increased responsiveness and reduced demandingness were associated with increased frequency of family mealtime from baseline to 16 weeks. There was also a negative association between parental restriction and frequency of family mealtime, but a positive association between parental concerns about their adolescent's weight and frequency of mealtime. These findings are the first to demonstrate that an authoritative or nurturing parenting style moderated intervention effects for improving the frequency of family mealtime in overweight and obese African American adolescents.