Development and Testing of an Instrument on Health Related Quality of Life among Patients with Chronic Obstructive Pulmonary Disease
Keywords:
Health related quality of life, Instrument development, Patients, Chronic obstructive pulmonary diseaseAbstract
Health-related quality of life is increasingly seen as an important outcome in clinical medicine but there is a lack of context suitable reliable and valid instruments to assess health related quality of life of patients suffering from chronic respiratory illness. The objective of this study was to develop and test an instrument to measure the health related quality of life of patients suffering from chronic obstructive pulmonary disease. An instrument containing key components of quality of life was synthesized through a comprehensive review of pertinent literatures and unstructured interviews with four patients suffering from chronic obstructive pulmonary disease. Initially 60 items instrument was developed and the instrument was tested for content and construct validity with health professionals that included two nursing experts, a chest physician, a psychologist, and a psychiatrist. Based on their feedback, 56-items instrument was finalized for further testing. The prepared instrument was tested among 40 patients who were clinically diagnosed to have chronic obstructive pulmonary disease. To ensure the reliability of the instrument, Cronbach’s alpha test was performed, considering alpha value of ≥0.8 as a reliable instrument. The result of this study showed that the overall standardized Cronbach’s alpha measures of internal consistency were 0.903, 0.936, 0.853 and 0.917 for the total health related quality of life and it’s physical, social and psychological domains respectively. Similarly, the inter-item correlation among domains of health related quality of life had ranged from 0.714 to 0.823 which were highly significant at 99% confidence level. Based on the findings, it is concluded that this health related quality of life instrument demonstrated a significant level of reliability and validity and it also indicated to serve as a useful tool to assess health related quality of life of patients suffering from chronic obstructive pulmonary disease.
References
NA
Downloads
Published
Issue
Section
License
Copyright (c) 2023 Journal of Nursing Education of Nepal
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.