Index-Description

The QLI-CRV is a questionnaire designed to provide a comprehensive assessment of a patient’s quality of life based on clinical observation. It includes multiple dimensions such as:

Physical health: Evaluation of overall physical well-being and the ability to perform daily activities.

Mental health: Assessment of psychological status, including levels of anxiety, depression, and emotional stability.

Social relationships: Analysis of social activity, interpersonal relationships, and support from family and the social environment.

Functional capacity: Evaluation of the patient’s ability to carry out daily tasks and participate in social activities.

The scale is completed by a clinician, who relies on clinical meetings, medical history, and observations of the patient’s behavior.

Data Analysis and Usage

Data collected from the QLI-CRV are used to comprehensively assess a patient’s quality of life, contributing to understanding how different dimensions are affected by their health status. This information helps monitor the patient’s progress, inform clinical decisions, and plan therapeutic interventions.

The data analysis includes:

Reliability analysis to ensure that clinicians’ assessments are consistent and reliable.

Descriptive statistics to understand the distribution of quality of life among patients.

Correlation with other clinical variables, such as disease severity or treatment outcomes, to evaluate the effectiveness of interventions.

Purpose

The goal of the Quality of Life Index – Clinician Rating Version (QLI-CRV) is to provide an objective, clinically documented assessment of patients’ quality of life. This allows healthcare professionals to:

Understand how illness or treatment affects various aspects of a patient’s life.

Monitor changes in quality of life during treatment.

Design appropriate interventions to improve the patient’s overall well-being.

Calibration

The calibration of the QLI-CRV includes:

Reliability analysis, such as calculating Cronbach’s alpha, to ensure the stability and consistency of clinicians’ assessments.

Validity analysis to examine whether the assessments accurately represent the patients’ quality of life.

Confirmatory factor analysis to determine whether the dimensions of the scale correspond to the concept of quality of life.

Bibliography

Ferrans, C. E., & Powers, M. J. (1985). Quality of life index: Development and psychometric properties. Advances in Nursing Science, 8(1), 15-24.

Spitzer, W. O., Dobson, A. J., Hall, J., Chesterman, E., Levi, J., Shepherd, R., … & Battista, R. N. (1981). Measuring the quality of life of cancer patients: A concise QL-index for use by physicians. Journal of Chronic Diseases, 34(12), 585-597.

Gill, T. M., & Feinstein, A. R. (1994). A critical appraisal of the quality of quality-of-life measurements. JAMA, 272(8), 619-626.