上海市三级医院门诊患者糖尿病管理自我效能量表的信度与效度评估
Evaluation of the reliability and validity of the Diabetes Management Self-Efficacy Scale for diabetic outpatients in third level hospitals in Shanghai

目的 汉化糖尿病管理自我效能量表，评价其信度、效度和重测信度等，对上海市三级医院门诊糖尿病患者的自我效能进行评价。方法 2015年6—8月，采用方便抽样的方法，在上海交通大学医学院附属瑞金医院、仁济医院和第九人民医院的糖尿病门诊对确诊的2型糖尿病患者进行问卷调查，共计410份。对其中的32例患者在2周后进行重测，评估量表的重测信度。结果 量表各主要测量指标的Cronbach's α系数取值范围为0.611~0.947，重测信度Spearman相关系数为0.418~0.980。因子分析显示问卷的结构效度较好，4个公因子涵盖了健康饮食、饮食与血糖、健康行为和遵嘱服药，能解释量表全部内容的70.38%。糖尿病患者总体与各方面的自我效能均处于良好水平，自我效能总分与自我管理总分呈正相关（P=0.000）。 结论 中文版糖尿病管理自我效能量表在糖尿病患者健康自我管理相关研究中是可靠和可信的，为探索在上海市开展糖尿病患者健康行为干预奠定了良好的基础。
： Objective To compile the Chinese version of the Diabetes Management Self-Efficacy Scale, evaluate its reliability, validity, and test-retest reliability, and assess the self-efficacy of diabetic outpatients in third level hospitals in Shanghai. Methods From June to August 2015, a total of 410 patients diagnosed with type-2 diabetes by diabetes clinics in Ruijin Hospital, Renji Hospital, and Shanghai Ninth People's Hospital were surveyed with questionnaires by the use of convenience sampling method. Test-retest reliability of the scale was assessed by re-surveying 32 of them two weeks after the first survey. Results The Cronbachs α coefficients for main indexes of the scale were in the range of 0.611-0.947 and the test-retest Spearman correlation coefficients were in the range of 0.418-0.980. Factor analysis indicated a good construct validity of the questionnaire. Four common factors covering healthy diet, diet and blood sugar, healthy behaviors and drug adherence could explain 70.38% contents of the scale. The overall self-efficacy and self-efficacy of each dimension in diabetic outpatients were satisfactory. The total score of self-efficacy was positively associated with that of self-management (P=0.000). Conclusion The Chinese version of the Diabetes Management Self-Efficacy Scale is reliable and credible in studying health self-management of patients with diabetes and lays a good foundation for exploring health behavior interventions in diabetic patients in Shanghai