%0期刊文章%@ 1438- 8871% I JMIR出版物%V 23卡塔尔世界杯8强波胆分析% N 11% P e29664% T在一个减糖信息视频中对社会权威的抗拒:基于web的4013名参与者随机对照试验%A Hachaturyan,Violetta %A Adam,Maya %A Favaretti,Caterina %A Greuel,Merlin %A Gates,Jennifer %A Bärnighausen,Till %A Vandormael,Alain %+海德堡大学全球卫生研究所，130.3 Im Neuenheimer Feld，海德堡，69210，德国，49 6221 56 5344，alain.vandormael@uni-heidelberg.de %K减糖%K抗抗%K动画视频%K数字干预%K健康沟通%D 2021 %7 22.11.2021 %9原创论文%J J医学互联网Res %G英文%X背景:基于动画故事的短视频(SAS)可以成为促进健康信息的有效策略。然而，健康促进策略往往会引起对健康信息的拒绝，这种现象被称为抗拒。在这项研究中，我们研究了SAS视频的儿童叙述者(被认为没有威胁性，社会权威低)是否最大限度地减少了对摄入添加糖的健康信息的抗拒。摘要目的:这项研究旨在确定，与内容安慰剂视频(关于防晒霜的健康信息)和安慰剂视频(关于地震的非健康信息)相比，我们的SAS干预视频是否减弱了对糖信息的抗拒，并确定与同一SAS的母亲叙述者(对目标受众具有同等的社会权威)或家庭医生叙述者(高度的社会权威)相比，儿童叙述者是否更有效地降低了对糖信息的抗拒视频。方法:这是一项基于网络的随机对照试验，比较了由儿童、儿童母亲或家庭医生讲述的关于减糖的干预视频，以及关于防晒霜使用的安慰剂视频和关于地震的安慰剂视频。主要终点是抗拒的前因(抗拒的倾向，信息的威胁程度)，其组成部分(愤怒和消极认知)和结果(来源评估和态度)的差异。 We performed analysis of variance on data collected (N=4013) from participants aged 18 to 59 years who speak English and reside in the United Kingdom. Results: Between December 9 and December 11, 2020, we recruited 38.62% (1550/4013) men, 60.85% (2442/4013) women, and 0.52% (21/4013) others for our study. We found a strong causal relationship between the persuasiveness of the content promoted by the videos and the components of reactance. Compared with the placebo (mean 1.56, SD 0.63) and content placebo (mean 1.76, SD 0.69) videos, the intervention videos (mean 1.99, SD 0.83) aroused higher levels of reactance to the message content (P<.001). We found no evidence that the child narrator (mean 1.99, SD 0.87) attenuated reactance to the sugar reduction message when compared with the physician (mean 1.95, SD 0.79; P=.77) and mother (mean 2.03, SD 0.83; P=.93). In addition, the physician was perceived as more qualified, reliable, and having more expertise than the child (P<.001) and mother (P<.001) narrators. Conclusions: Although children may be perceived as nonthreatening messengers, we found no evidence that a child narrator attenuated reactance to a SAS video about sugar consumption when compared with a physician. Furthermore, our intervention videos, with well-intended goals toward audience health awareness, aroused higher levels of reactance when compared with the placebo videos. Our results highlight the challenges in developing effective interventions to promote persuasive health messages. Trial Registration: German Clinical Trials Registry DRKS00022340; https://tinyurl.com/mr8dfena International Registered Report Identifier (IRRID): RR2-10.2196/25343 %M 34813490 %R 10.2196/29664 %U //www.mybigtv.com/2021/11/e29664 %U https://doi.org/10.2196/29664 %U http://www.ncbi.nlm.nih.gov/pubmed/34813490