ABSTRACT: The study proposed a reduced World Health Organization Quality of Life (WHOQoL (BREF)) questionnaire with 19 variables by combining the WHOQoL (BREF) questionnaire with the World Health Organization Quality of Life-Human Immunodeficiency Virus (WHOQoL-HIV (BREF) questionnaire using binary logistic regression. Sensitivity and specificity tests were carried out as diagnostic accuracy to measure the level of agreement between the results of a test under evaluation and that of the reference standard. The proposed questionnaire gave a positive predictive value (PPV) and a negative predictive value (NPV) that are as good as the gold standard for measuring quality of life using real life data. A detailed analyses with significant odd ratios for the proposed instrument was reported.
Keywords: Binary logistic, Sensitivity, Specificity, Odd ratio, Quality of life
JoST. 2021. 11(1): 71-78
Accepted for Publication, March 30, 2021