Zhou Mi, Chittamuru Deepti, Ha Sandie, Schillinger Dean, Ramírez A Susana
University of California Merced, Merced, United States.
University of California Merced, Merced, United States.
Contemp Clin Trials. 2022 Apr;115:106711. doi: 10.1016/j.cct.2022.106711. Epub 2022 Feb 18.
The strategic use of media is a common approach to promote health. A large body of evidence identifies specific features that increase message efficacy, including tailoring messages to the target audience and using a storytelling format. Yet most message testing research has focused on individual-level outcomes, ignoring the social and environmental determinants of health behaviors, which require collective action and political will to change. Grounded in an ecological approach to communication, we will carry out two double-blinded randomized experiments to test the relative effectiveness of message tailoring (culturally-tailored vs. standard) and format (narrative vs. didactic) to increase the intention to reduce individual sugar-sweetened beverage consumption, the understanding of social and commercial determinants of health, and the sense of empowerment among young adult Latinas. Based on power analyses (80% power at alpha = 0.05), we will randomize 438 participants to two groups (traditional standard infographic and culturally-tailored infographic) in the first study, and 662 participants to two groups (culturally-tailored infographic and culturally-tailored comic book) in the second study. All participants will be measured by a pre-treatment test and an immediate post-treatment test. We hypothesize that culturally-tailored comic book will be most effective, and traditional standard infographic will be least effective, on all levels of outcomes. This study will provide empirical evidence in communication strategies to help young Latinos or other racial/ethnic minority young people to pursue positive dietary behaviors that both benefit themselves and contribute to change of social norms.
战略性地利用媒体是促进健康的常用方法。大量证据确定了提高信息效力的具体特征，包括根据目标受众定制信息以及采用故事叙述形式。然而，大多数信息测试研究都集中在个体层面的结果上，忽视了健康行为的社会和环境决定因素，而改变这些因素需要集体行动和政治意愿。基于一种生态传播方法，我们将开展两项双盲随机实验，以测试信息定制（文化定制与标准定制）和形式（叙述性与说教性）对提高年轻成年拉丁裔女性减少个人含糖饮料消费的意愿、对健康的社会和商业决定因素的理解以及赋权感的相对有效性。根据功效分析（α = 0.05时功效为80%），在第一项研究中，我们将把438名参与者随机分为两组（传统标准信息图表和文化定制信息图表），在第二项研究中将662名参与者随机分为两组（文化定制信息图表和文化定制漫画书）。所有参与者都将通过治疗前测试和治疗后即时测试进行测量。我们假设，在所有结果层面上，文化定制漫画书将最有效，而传统标准信息图表将最无效。这项研究将为传播策略提供实证证据，以帮助年轻拉丁裔或其他种族/族裔少数群体年轻人追求积极的饮食行为，这既有利于他们自己，也有助于社会规范的改变。
