Content-based interpretation aids for health-related quality of life measures in clinical practice. An example for the visual function index (VF-14).

Journal article

BACKGROUND: In spite of a well-established development of instruments, difficulty in interpreting health related quality of life scores may limit its use in clinical practice. OBJECTIVE: To develop generalizable interpretation aids for a measure of perceived functional visual status, the VF-14 index. DESIGN: Item Response Theory (Rasch analysis) was used to analyze the performance of VF-14 items. The 'ruler' aid was derived from the most difficult activity (item) a patient is able to do with...

Expand abstract

Authors: Valderas, J; Alonso, J; Prieto, L; Espallargues, M; Castells, X

• Publication status: Published
• Journal: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation
• Volume: 13
• Issue: 1
• Pages: 35-44
• Publication date: 2004-02-01
• DOI: 10.1023/b:qure.0000015298.09085.b0
• EISSN: 1573-2649
• ISSN: 0962-9343
• Language: English
• Keywords: Humans; Sickness Impact Profile; Middle Aged; Outpatient Clinics, Hospital; Female; Self-Assessment; Probability Theory; Male; Activities of Daily Living; Interviews as Topic; Quality of Life; Psychometrics; Aged; Spain; Cataract Extraction; Cataract; Surgicenters; Benchmarking