Evaluation of the Missoula-VITAS Quality of Life Index—Revised: Research Tool or Clinical Tool?
- 1 February 2005
- journal article
- research article
- Published by Mary Ann Liebert Inc in Journal of Palliative Medicine
- Vol. 8 (1), 121-135
- https://doi.org/10.1089/jpm.2005.8.121
Abstract
Background: Quality of life (QOL) is a central outcome measure in caring for seriously ill patients. The Missoula-VITAS Quality of Life Index (MVQOLI) is a 25-item patient-centered index that weights each of five QOL dimensions (symptoms, function, interpersonal, wellbeing, transcendence) by its importance to the respondent. The measure has been used to assess QOL for hospice patients, and has been found to be somewhat complex to use and analyze. Objective: This study aimed to simplify the measure, and evaluate the reliability and validity of a revised version as either a research or clinical tool (i.e., "psychometric" versus "clinimetric"). Design: Two data collection efforts are described. The psychometric study collected QOL data from 175 patients at baseline, 3–5 days, and 21 days later. The implementation study evaluated the feasibility and utility of the MVQOLI-R during over six weeks of use. Setting/subjects: End-stage renal patients on dialysis, hospice, or long-term care patients participated in the psychometric study. The implementation study was done in hospice, home health, and palliative care settings. Measurements: The MVQOLI-R and the Memorial Symptom Assessment Scale. Results: The psychometric and implementation studies suggest that the MVQOLI-R performs well as a clinical tool but is not powerful as an outcome research instrument. The MVQOLI-R has the heterogeneous structure of clinimetric tools, and demonstrated both relevance and responsiveness. Additionally, in a clinical setting the MVQOLI-R was useful therapeutically for stimulating communication about the psychosocial and spiritual issues important to the tasks of life completion and life closure. Conclusions: The MVQOLI-R has clinical utility as a patient QOL assessment tool and may have therapeutic utility as a tool for fostering discussion among patients and their clinicians, as well as for helping patients identify sources of suffering and opportunities during this time in their lives.Keywords
This publication has 23 references indexed in Scilit:
- Initial Assessment of a New Instrument to Measure Quality of Life at the End of LifeJournal of Palliative Medicine, 2002
- Patient weighting of importance of asthma symptomsThorax, 2001
- Why are we weighting? The role of importance ratings in quality of life measurementQuality of Life Research, 2001
- The effect of individually assessed preference weights on the relationship between holistic utilities and nonpreference-based assessmentQuality of Life Research, 2000
- A case for including spirituality in quality of life measurement in oncologyPsycho‐Oncology, 1999
- Measuring quality of life for patients with terminal illness: the Missoula–VITAS® quality of life indexPalliative Medicine, 1998
- The contribution of personal rating to the clinimetric functioning of a generic quality of life instrumentJournal of Clinical Epidemiology, 1996
- The Memorial Symptom Assessment Scale: an instrument for the evaluation of symptom prevalence, characteristics and distressEuropean Journal Of Cancer, 1994
- A comparative contrast of clinimetric and psychometric methods for constructing indexes and rating scalesJournal of Clinical Epidemiology, 1992
- Clinimetric perspectivesJournal of Chronic Diseases, 1987