Development and Validation of a Self-Quantification Scale for Patients With Hypertension

Frontiers in Public Health

article

Guiyue Ma¹  Zhuqing Zhong¹  Yinglong Duan¹  Zhiying Shen¹  Ning Qin²  Dehua Hu⁵ 

[1] Third Xiangya Hospital, Central South University;Xiangya School of Nursing, Central South University;College of Nursing, Anhui University of Traditional Chinese Medicine;Key Laboratory of Medical Information Research, Central South University, College of Hunan Province;Xiangya School of Life Science, Central South University

关键词: hypertension;    self-quantification;    scale;    reliability;    validity;   

DOI  :  10.3389/fpubh.2022.849859

学科分类：社会科学、人文和艺术（综合）

来源: Frontiers

【 摘 要 】

Background 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. Methods 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). Results 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. Conclusion The scale has good validity and reliability and can be used as a self-quantification scale for patients with hypertension.

【 授权许可】

CC BY