Department of Communication Studies, Sam Houston State University.
School of Journalism and Communication, Peking University.
Health Commun. 2023 Mar;38(3):447-459. doi: 10.1080/10410236.2021.1956036. Epub 2021 Jul 22.
Severe smog, a form of air pollution, has become a threat to public health in Beijing, China. To examine Beijing residents' protective behavioral intentions against smog, we proposed a conceptual model, which applies the health belief model (HBM) and specifies the roles of three distal predictors: exposure to news, discussion, and worry. The proposed model was tested in the context of protective behavioral intentions (i.e., intention to wear facemask & intention to use air purifier). Data were collected from Beijing residents during the period from 2/27 to 3/7 in 2017. Structural-equation-modeling (SEM) analyses of valid cases ( = 523) found support for the health belief model regarding the positive effects of perceived threat, perceived benefit, and perceived self-efficacy on intention to wear facemask or intention to use air purifier. Perceived barrier has a negative effect on intention to use air purifier, but is related to intention to wear facemask. Neither exposure nor discussion is related to perceived threat. The effect of worry on intention to wear facemaskor intention to use air purifier is mediated by perceived threat. This proposed mediating mechanism is superior to the reverse mechanism (that worry mediates perceived threat). Implications of findings were discussed.
严重的雾霾，一种空气污染形式，已经对中国北京的公众健康构成了威胁。为了研究北京居民对雾霾的防护行为意向，我们提出了一个概念模型，该模型应用了健康信念模型（HBM），并具体说明了三个远距离预测因子的作用：接触新闻、讨论和担忧。在防护行为意向（即戴口罩的意向和使用空气净化器的意向）的背景下，对提出的模型进行了检验。2017 年 2 月 27 日至 3 月 7 日期间，从北京居民那里收集了数据。对有效案例（n=523）的结构方程模型（SEM）分析表明，感知威胁、感知益处和感知自我效能对戴口罩或使用空气净化器的意向有积极影响，这支持了健康信念模型。感知障碍对使用空气净化器的意向有负面影响，但与戴口罩的意向有关。接触和讨论都与感知威胁无关。担忧对戴口罩或使用空气净化器的意向的影响是通过感知威胁来介导的。与担忧介导感知威胁的反向机制相比，这种提出的中介机制更为优越。讨论了研究结果的意义。
