@文章{信息:doi/10.2196/36210，作者=“Buller, David和Walkosz, Barbara和Henry, Kimberly和Woodall, W Gill和Pagoto, Sherry和Berteletti, Julia和Kinsey, Alishia和Divito, Joseph和Baker, Katie和Hillhouse, Joel”，标题=“向母亲宣传社交距离和COVID-19疫苗的意图:社交媒体信息信息源的随机比较”，期刊=“JMIR信息流行病学”，年=“2022”，月=“8”，日=“23”，卷=“2”，数=“2”，页数=“e36210”，关键词=“社交媒体;COVID-19;疫苗接种;药物干预;信息来源;错误信息;疫苗;公共卫生;COVID-19预防; health promotion", abstract="Background: Social media disseminated information and spread misinformation during the COVID-19 pandemic that affected prevention measures, including social distancing and vaccine acceptance. Objective: In this study, we aimed to test the effect of a series of social media posts promoting COVID-19 nonpharmaceutical interventions (NPIs) and vaccine intentions and compare effects among 3 common types of information sources: government agency, near-peer parents, and news media. Methods: A sample of mothers of teen daughters (N=303) recruited from a prior trial were enrolled in a 3 (information source) {\texttimes} 4 (assessment period) randomized factorial trial from January to March 2021 to evaluate the effects of information sources in a social media campaign addressing NPIs (ie, social distancing), COVID-19 vaccinations, media literacy, and mother--daughter communication about COVID-19. Mothers received 1 social media post per day in 3 randomly assigned Facebook private groups, Monday-Friday, covering all 4 topics each week, plus 1 additional post on a positive nonpandemic topic to promote engagement. Posts in the 3 groups had the same messages but differed by links to information from government agencies, near-peer parents, or news media in the post. Mothers reported on social distancing behavior and COVID-19 vaccine intentions for self and daughter, theoretic mediators, and covariates in baseline and 3-, 6-, and 9-week postrandomization assessments. Views, reactions, and comments related to each post were counted to measure engagement with the messages. Results: Nearly all mothers (n=298, 98.3{\%}) remained in the Facebook private groups throughout the 9-week trial period, and follow-up rates were high (n=276, 91.1{\%}, completed the 3-week posttest; n=273, 90.1{\%}, completed the 6-week posttest; n=275, 90.8{\%}, completed the 9-week posttest; and n=244, 80.5{\%}, completed all assessments). In intent-to-treat analyses, social distancing behavior by mothers (b=--0.10, 95{\%} CI --0.12 to --0.08, P<.001) and daughters (b=--0.10, 95{\%} CI --0.18 to --0.03, P<.001) decreased over time but vaccine intentions increased (mothers: b=0.34, 95{\%} CI 0.19-0.49, P<.001; daughters: b=0.17, 95{\%} CI 0.04-0.29, P=.01). Decrease in social distancing by daughters was greater in the near-peer source group (b=--0.04, 95{\%} CI --0.07 to 0.00, P=.03) and lesser in the government agency group (b=0.05, 95{\%} CI 0.02-0.09, P=.003). The higher perceived credibility of the assigned information source increased social distancing (mothers: b=0.29, 95{\%} CI 0.09-0.49, P<.01; daughters: b=0.31, 95{\%} CI 0.11-0.51, P<.01) and vaccine intentions (mothers: b=4.18, 95{\%} CI 1.83-6.53, P<.001; daughters: b=3.36, 95{\%} CI 1.67-5.04, P<.001). Mothers' intentions to vaccinate self may have increased when they considered the near-peer source to be not credible (b=--0.50, 95{\%} CI --0.99 to --0.01, P=.05). Conclusions: Decreasing case counts, relaxation of government restrictions, and vaccine distribution during the study may explain the decreased social distancing and increased vaccine intentions. When promoting COVID-19 prevention, campaign planners may be more effective when selecting information sources that audiences consider credible, as no source was more credible in general. Trial Registration: ClinicalTrials.gov NCT02835807; https://clinicaltrials.gov/ct2/show/NCT02835807 ", issn="2564-1891", doi="10.2196/36210", url="https://infodemiology.www.mybigtv.com/2022/2/e36210", url="https://doi.org/10.2196/36210", url="http://www.ncbi.nlm.nih.gov/pubmed/36039372" }