Third Xiangya Hospital, Central South University, Changsha, China.
Xiangya School of Nursing, Central South University, Changsha, China.
Front Public Health. 2022 May 2;10:849859. doi: 10.3389/fpubh.2022.849859. eCollection 2022.
The self-management ability of patients with hypertension is poor, and self-quantification increases gradually with the development of electronics. Self-quantification for patients with hypertension has important implications for individual health. However, there is a lack of relevant scales at present, and we aim to develop a self-quantified scale for patients with hypertension.
The instrument was developed based on protection motivation theory with literature review, a qualitative interview study and focus group discussions, and pilot testing. A total of 360 patients with hypertension were investigated using the scale. The psychometric properties of the scale were evaluated concerning validity and reliability employing internal consistency reliability, split-half reliability, test-retest reliability, content validity (S-CVI/Ave and I-CVI), and construct validity (exploratory factor analysis and confirmatory factor analysis).
The final scale had 30 items with seven sub-domains. The Cronbach's α for all domains was 0.900 with a range of 0.817-0.938. The split-half reliability coefficient for all domains was 0.743 with a range of 0.700-0.888. The test-retest reliability coefficient for all domains was 0.880 with a range of 0.849-0.943. The S-CVI/Ave for all domains was 0.922 with a range of 0.906- 0.950, and the I-CVI of each item was a range of 0.800-1.000. The result of confirmatory factor analysis of this scale showed that χ2/df was 2.499, RMSEA = 0.065, GFI=0.865, NFI=0.894, IFI=0.934, TLI=0.914, CFI=0.933, RFI=0.865. The Pearson's coefficients between the total scale and every domain were ranging from 0.347 to 0.695, and each domain ranged from 0.130 to 0.481.
The scale has good validity and reliability and can be used as a self-quantification scale for patients with hypertension.
高血压患者的自我管理能力较差，随着电子产品的发展，自我量化逐渐增加。高血压患者的自我量化对个人健康具有重要意义。然而，目前缺乏相关量表，我们旨在开发一种高血压患者自我量化量表。
该工具基于保护动机理论，通过文献回顾、定性访谈研究、焦点小组讨论和试点测试进行开发。共调查了 360 名高血压患者。采用内部一致性信度、分半信度、重测信度、内容效度（S-CVI/Ave 和 I-CVI）和结构效度（探索性因子分析和验证性因子分析）评估量表的信度和效度。
最终量表有 30 个项目，分为 7 个亚领域。所有领域的 Cronbach's α 值为 0.900，范围为 0.817-0.938。所有领域的分半信度系数为 0.743，范围为 0.700-0.888。所有领域的重测信度系数为 0.880，范围为 0.849-0.943。所有领域的 S-CVI/Ave 值为 0.922，范围为 0.906-0.950，每个项目的 I-CVI 值范围为 0.800-1.000。该量表验证性因子分析的结果显示，χ2/df 为 2.499，RMSEA=0.065，GFI=0.865，NFI=0.894，IFI=0.934，TLI=0.914，CFI=0.933，RFI=0.865。总量表与各领域的 Pearson 相关系数范围为 0.347-0.695，各领域范围为 0.130-0.481。
该量表具有良好的信度和效度，可作为高血压患者的自我量化量表。
