SYSTEMATIC EVALUATION OF SPECIFIC QUALITY OF LIFE INSTRUMENTS FOR PROSTATE CANCER
Author(s)
Schmidt S, Pardo Y, Vilagut G, Garin O, Pont A, Cunillera O, Becerra V, Ferrer MIMIM (Institut de Recerca Hospital del Mar), Barcelona, Catalunya, Spain
Presentation Documents
OBJECTIVES: This study aims to perform a systematic expert evaluation of the measurement properties of specific health-related quality of life instruments for prostate cancer. METHODS: We conducted a systematic literature search to identify articles about specific health-related quality of life instruments developed for prostate cancer. Secondly, titles and abstracts were reviewed independently by two experts and, in case of discrepancies, by a third expert to filter the information. Thirdly, for every instrument identified, two experts reviewed the articles about measurement properties and applied the EMPRO tool (Evaluating the Measurement of Patient-Reported Outcomes), which was specifically designed for a standardized evaluation of measurement properties of PRO instruments regarding: conceptual and measurement model, reliability, validity and responsiveness among other. Scores are transformed to a scale from 0 to 100. RESULTS: Ten specific questionnaires were indentified with great variability regarding available information on measurement properties (between 2 and 13 articles): DALE questionnaire (2), ESCAP_CDV (2), TALCOTT questionnaire (2), PCQoL (3), EORTC QLQ PR-25 (3), PORPUS (3), PROSQOLI (4), EPIC (7), FACT-P (11) and UCLA-PCI (13). Only 5 out of 10 questionnaires provided full information regarding their measurement properties. Regarding their conceptual and measurement model, EPIC demonstrated the highest score (>90), followed by UCLA-PCI, PROSQOLI, Talcott questionnaire, PCQoL, EORTC PR25, and PORPUS (>50). Only three questionnaires presented high reliability scores (EPIC and PCQoL >80, UCLA-PCI >50). UCLA-PCI showed the highest scores for validity (>80), followed by PORPUS and PCQoL (>70), PROSQOLI and EPIC (>50). Highest responsiveness scores were observed for PCQoL (100), EPIC and PORPUS (>80), and PROSQOLI (>70). CONCLUSIONS: In this systematic evaluation, only 2 out of 10 questionnaires provided information supporting their conceptual and measurement model, as well as good reliability, validity and responsiveness: EPIC and PCQoL. All instruments have a psychometric design except PORPUS, which was designed to perform cost-utility analysis.
Conference/Value in Health Info
2011-11, ISPOR Europe 2011, Madrid, Spain
Value in Health, Vol. 14, No. 7 (November 2011)
Code
PCN131
Disease
Oncology