目的 探索健康生活方式指导员通过在线平台分享健康科普意愿的影响因素,为更好地发挥指导员的健康传播与促进作用提供依据.方法 基于计划行为理论(Theory of Planned Behavior,TPB)和益处与风险评价理论(Theory of Benefit and Risk Assessment,BRA),2022年9月在南京市健康生活方式指导员中进行实证研究,分析感知风险、感知益处、分享态度、主观规范和感知行为控制对分享意愿的影响及机制.结果 参与调查的指导员1665名,模型解释了分享意愿87％的变化(R2=0.87)和分享行为32％的变化(R2=0.32).分享态度(β=0.388)、主观规范(β=0.596)、感知行为控制(β=0.105)和感知益处(β=0.081)正向影响指导员分享健康科普意愿(P＜0.05).分享态度在感知益处和分享意愿间起部分中介作用,中介效应为0.205(95％CI:0.180～0.235);分享态度在感知风险和分享意愿间起完全中介作用,中介效应为0.076(95％CI:0.064～0.091).结论 基于TPB和BRA的整合模型可以较好地解释南京市指导员通过在线平台分享健康科普意愿的影响因素,为开展指导员培训和实施干预措施提供依据.
Influencing mechanism of health knowledge sharing intention among health lifestyle instructors
Objective To explore the influencing factors of health knowledge sharing intention among health lifes-tyle instructors through online platform,and to provide the basis for better exerting the role of instructors.Methods An in-tegrated model was developed by combining the theory of benefit and risk assessment with the theory of planned behav-ior.Structural equation modeling was used to test the hypotheses on a sample of 1665 Chinese health lifestyle instruc-tors.Results The integrated model had a strong explanatory power,with 87％of the variance in intention towards sharing(R2=0.87)and 32％in behavior towards sharing(R2=0.32)being explained.Attitude towards sharing(β=0.388),subjective norms(β=0.596),perceived behavioral control(β=0.105),and perceived benefit(β=0.081)were iden-tified as significant predictors of health lifestyle instructors'intention towards sharing health knowledge via online platforms.Furthermore,perceived benefits[Mediation Index=0.205,95％CI:0.180-0.235]and perceived risks[Mediation Index=0.076,95％CI:0.064-0.091]were found to act as triggers for intention,mediated by attitude to-wards sharing.Conclusion The integrated model based on the theory of planned behavior and the theory of benefit and risk assessment can well explain the intention of instructors towards sharing health knowledge through online platform,and can provide a basis for the training and intervention of instructors.
Theory of planned behaviorTheory of benefit and risk assessmentHealth scienceHealth lifestyle instructors
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