【摘要】 目的 探析社会支持与数字健康素养在低龄老年经皮冠状动脉介入治疗(PCI)患者社交媒体使用行为与心脏焦虑间的调节作用，为制订个性化心脏焦虑干预策略提供依据。方法 便利选取387例60～74岁PCI患者，采用社交媒体使用行为量表、社会支持评定量表、数字健康素养量表、心脏焦虑量表进行调查。采用Pearson相关性分析、敏感性分析与分层回归分析(含简单斜率检验)进行数据分析。结果 低龄老年PCI患者心脏焦虑总分为(27.03±9.09)分。敏感性分析将文化程度、支架植入数量作为控制变量；分层回归分析及简单斜率检验显示，低龄老年PCI患者社交媒体使用行为可正向预测心脏焦虑，社会支持和数字健康素养在两者间起联合调节作用(均P<0.05)。结论 低龄老年PCI患者心脏焦虑水平相对较低；护理人员应依据患者社交媒体使用行为差异，针对性干预其社会支持或提升数字健康素养，从而缓解心脏焦虑水平。更多还原

【Abstract】 Objective To explore the moderating effects of social support and digital health literacy on the relationship between social media use and cardiac anxiety among young elderly patients undergoing percutaneous coronary intervention(PCI), and to provide evidence for developing individualized interventions.Methods A total of 387 young elderly(aged 60 to 74) patients undergoing PCI were recruited by convenience sampling.Data were collected using the Social Media Use Behavior Scale, the Social Support Rating Scale, the Digital Health Literacy Instrument, and the Cardiac Anxiety Questionnaire.Pearson′s correlation analysis, sensitivity analysis, and hierarchical regression analysis(with simple slope test) were performed.Results The total score for cardiac anxiety was 27.03±9.09.Sensitivity analysis identified educational level and number of stents implanted as confounding variables.Hierarchical regression and simple slope test revealed that social media use behavior positively impacted cardiac anxiety, and social support and digital health literacy jointly moderated the relationship between social media use behavior and cardiac anxiety(P<0.05).Conclusion Cardiac anxiety among young elderly patients undergoing PCI is relatively low.Nursing staff should tailor interventions aimed at enhancing social support or digital health literacy based on differences in patients′ social media use behavior to alleviate cardiac anxiety level.更多还原