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Purpose: To assess if exposure to the Choose Water public health media campaign increased parents’ intentions to promote healthier beverage consumption in their household. Design: A cross-sectional evaluation administered post-campaign. Setting: A 2017 internet panel survey in Los Angeles County, California. Participants: The survey included 499 parents of young children. Intervention: The Choose Water media campaign included digital media and out-of-home advertisements (eg, transit shelters, interiors of buses) in both English and Spanish. Measures: Dichotomous outcome variables were parental intentions to give child(ren) (1) more water and (2) less sugar-sweetened beverage consumption in their households. The independent variable was campaign exposure, categorized as no exposure, exposed but did not discuss visual, and exposed and discussed visual with someone. Analysis: Descriptive, bivariate, and multivariable logistic regressions. Results: Among those who were exposed and discussed a campaign visual, the adjusted odds of intending to promote water consumption were 2.82 times greater than for those who reported no exposure (95% confidence interval [CI]: 1.46-5.46). Similar odds to promote less sugar-sweetened beverage consumption were observed for those who were exposed and discussed a campaign visual (adjusted odds ratio: 3.27, 95% CI: 1.76-6.08). Those with the lowest educational attainment discussed the visual(s) less (10.5%). Conclusion: Word of mouth may enhance health messaging by allowing time for intended audiences to process campaign content within their interpersonal network.

Efforts to reverse the obesity epidemic require policy, systems, and environmental (PSE) change strategies. Despite the availability of evidence-based and other promising PSE interventions, limited evidence exists on the “how-to” of transitioning them into practice. For the past 13 years, the Los Angeles County Department of Public Health has been building capacity among community residents and other stakeholders to create effective community coalitions and to implement well-designed policy strategy campaigns using an evidence-based approach to policy change, the policy adoption model (PAM). Implementing a phase-based approach to policy change, the PAM was initially used to support the passage of over 140 tobacco control and prevention policies in Los Angeles County. Following these successes, Los Angeles County Department of Public Health applied the PAM to obesity prevention, operationalizing the policy process by training community residents and other stakeholders on the use of the model. The PAM has shown to be helpful in promoting PSE change in tobacco control and obesity prevention, suggesting a local-level model potentially applicable to other fields of public health seeking sustainable, community-driven policy change.

Results: Higher community-level EH was associated with higher childhood obesity prevalence (P < 0.001). The obesity prevalence among communities in the highest EH quartile (26.9%) was more than double the obesity prevalence among communities in the lowest EH quartile (12.5%). The slope of the association between EH and childhood obesity differed by racial/ethnic group. The slope was higher for non-Hispanic White students, Hispanics, and non-Hispanic Asians, and lower for non-Hispanic Black students. Racial/ ethnic disparities were observed across the socioeconomic spectrum. Conclusions: Findings suggest that efforts to improve community socioeconomic conditions could reduce childhood obesity prevalence. Prevention efforts should target communities with high economic hardship and also focus on providing culturally relevant interventions that address disparities in obesity prevalence across communities.