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How African-American adolescents' perceptions of dietary beliefs and behaviors of others relate to diet quality
Wrobleski, M. M., Parker, E. A., Hager, E., Hurley, K. M., Oberlander, S., Merry, B. C., & Black, M. M. (2018). Friends and family: How African-American adolescents' perceptions of dietary beliefs and behaviors of others relate to diet quality. Journal of the Academy of Nutrition and Dietetics, 118(12), 2302-2310. https://doi.org/10.1016/j.jand.2018.07.021
Background Adolescents' dietary intake often fails to meet national dietary guidelines, especially among low-income African-American youth. The dietary habits established in adolescence are likely to continue into adulthood, and a poor-quality diet increases the risk of developing obesity and chronic disease. Based on principles from ecological and social-cognitive behavior change health theories, perceptions of parental beliefs about healthy eating, perceptions of peer eating behaviors, and parental monitoring of what adolescents eat may positively influence adolescent diet quality.Objective The purposes of this study were to determine whether perceived parental beliefs about nutrition, perceived peer eating behaviors, and reported parental monitoring of the adolescent diet were related to African-American adolescent diet quality and whether these relationships were moderated by adolescent age or sex.Design This secondary cross-sectional study used baseline data (2002 to 2004) from an urban community sample of low-income adolescents participating in a health promotion trial.Participants/setting Participants were 216 African-American adolescent-caregiver dyads in Baltimore, MD.Main outcome measures The 2010 Healthy Eating Index was used to estimate adolescent diet quality.Statistical analyses performed Analyses included correlations, t tests, age- and sexby-perception regression interactions, and multivariate regressions adjusted for body mass index-for-age percentile, caregiver weight status, and caregiver depressive symptoms.Results Higher diet quality scores were related to higher levels of perceived parental and peer support for healthy eating behaviors among adolescents (beta=.21; P<0.05; beta=.15; P<0.05, respectively) and to caregiver reports of parental monitoring of adolescent dietary behavior (beta=1.38, P<0.01). Findings were not moderated by age or sex.Conclusions Consistent with ecological and social-cognitive theories, adolescents look to their friends and family in making healthy food choices. The relationships uncovered by this study describe some of the contextual, interpersonal influences associated with diet quality among low-income, urban African-American adolescents and warrant further exploration in future intervention studies.
