• Guadalupe X Ayala, John P Elder, Nadia R Campbell, Elva Arredondo, Barbara Baquero, Noe C Crespo, and Donald J Slymen.
• San Diego State University, Graduate School of Public Health, San Diego, California, USA. ayala@mail.sdsu.edu
• Am J Prev Med. 2010 Feb 1; 38 (2): 154162154-62.

BackgroundParenting interventions have achieved changes in factors associated with childhood obesity but few have tested the effects on multiple parental influences.PurposeThis study examined the efficacy of an intervention aimed at improving several dimensions of parenting related to childhood obesity.DesignThe study used a 2 x 2 factorial design.Setting/ParticipantsIn 2003, a sample of 13 Southern California schools was randomized to one of four conditions: micro-environment only, macro-environment only, micro-plus-macro-environment, and no treatment control condition. Participants included 811 predominantly Mexican immigrant/Mexican-American mothers with children in kindergarten through second grade.InterventionIn both micro conditions, participants received monthly home visits by a promotora over a 7-month period plus monthly mailed newsletters.Main Outcome MeasuresIn 2008, intervention effects were examined on (1) parenting strategies, including limit setting, monitoring, discipline, control, and reinforcement related to children's diet and physical activity; (2) parental support for physical activity; (3) parent-mediated family behaviors such as family meals eaten together and TV watching during family dinners; and (4) perceived barriers and other parent cognitions related to children's eating and activity.ResultsAt the 2-year follow-up, significant improvements were observed in three of five parenting strategies, parental support, and two of four parent-mediated family behaviors among parents receiving the micro intervention (i.e., those who received promotora visits and monthly newsletters), as compared with those in the macro-only and control conditions.ConclusionsAspects of parenting related to children's risk for obesity and related health outcomes are modifiable with the support of a promotora and print media.Copyright 2010 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.

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