Development and reliability and validity test of a Self-Assessment Scale for Medication Literacy in Patients with Coronary Heart Disease Comorbidity Diabetes

doi:10.3761/j.issn.0254-1769.2024.09.006

Abstract

Abstract:

Objective To develop a self-assessment scale for medication literacy in patients with coronary heart disease comorbidity diabetes and to test its reliability and validity. Methods According to medication literacy theory model，the initial scale was formed through literature review，the qualitative interview and expert inquiry. Cognitive interview was used to optimize the expression of item text. 421 patients with coronary heart disease comorbidity diabetes in a tertiary hospital in Zhejiang province from November 2022 to April 2023 were selected to investigate the reliability and validity of the scale by convenience sampling. Results The self-assessment scale of drug literacy for coronary heart disease comorbidity diabetes mellitus included 23 items in 5 dimensions including acquisition，understanding，communication，evaluation and calculation. The total Cronbach’s α coefficient of the scale was 0.911；the retest reliability was 0.948；the average content validity index was 0.997；the correlation coefficients between each dimension and total score of the scale and the calibration scale ranged from 0.485 to 0.926. The exploratory factor analysis was employed to extract 5 common factors，and the cumulative variance contribution rate was 73.753%. Confirmatory factor analysis showed that the scale factor structure was stable. Conclusion The scale has good reliability and validity，and it can be used as an effective tool to evaluate the self-rated medication literacy level of patients with coronary heart disease comorbidity diabetes.

Key words: Coronary Heart Disease, Diabetes Mellitus, Medication Literacy, Scale, Reliability, Validity, Nursing Care

摘要：

目的编制冠心病合并糖尿病患者药物素养自评量表并检验其信效度。方法在药物素养概念模型指导下，通过文献分析、质性访谈、专家函询法编制量表初稿。便利选取2022年11月—2023年4月浙江省某三级甲等综合医院421例冠心病合并糖尿病患者进行调查，检验量表信效度。结果冠心病合并糖尿病患者药物素养自评量表包括获取、理解、交流、评价、计算5个维度，共23个条目。量表总的Cronbach’s α系数为0.911，重测信度为0.948，量表水平内容效度指数为0.997，量表各维度及总分与校标量表的相关系数为0.485~0.926。探索性因子分析提取5个公因子，累计方差贡献率为73.753%；验证性因子分析显示量表因子结构稳定。结论该量表具有良好的信效度，可作为冠心病合并糖尿病患者自评药物素养水平的有效评估工具。

关键词: 冠心病, 糖尿病, 药物素养, 量表, 信度, 效度, 护理

LIU Haiting, WANG Yongmei, ZHENG Beibei, CAI Lili, YE Linbin, WU Jiayun, NING Li, LI Yimin, CHEN Weixia. Development and reliability and validity test of a Self-Assessment Scale for Medication Literacy in Patients with Coronary Heart Disease Comorbidity Diabetes[J]. Chinese Journal of Nursing, 2024, 59(9): 1065-1071.

刘海婷, 王咏梅, 郑贝贝, 蔡丽丽, 叶林斌, 吴佳芸, 宁丽, 李益民, 陈为霞. 冠心病合并糖尿病患者药物素养自评量表的编制及信效度检验[J]. 中华护理杂志, 2024, 59(9): 1065-1071.

Figures/Tables 2

References 24

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