Quality of life 3. Rheumatoid arthritis.

It has increasingly been recognized that for the evaluation of interventions in patients with rheumatoid arthritis not only physician-oriented variables, like laboratory or radiographic assessments but also patient-oriented variables such as quality of life are of importance. Many different arthritis-specific quality of life instruments have been developed in recent years using different or no definition at all about the concept 'quality of life'. In this review a generally accepted definition of quality of life, existing of three components, is presented. The interrelationship between quality of life and all the different variables used in assessing disease activity in rheumatoid arthritis is discussed.