Quality of Life Outcomes of HUMIRA in Rheumatoid Arthritis (RA), Psoriatic Arthritis (PsA), Ankylosing Spondylitis (AS) After Unsustainable Response to Biologicals and Disease Modifying Antirheumatic Drugs

The HAQ-DI is a questionnaire that measures functional status (disability) and health-related quality of life. It measures a patient's ability to perform everyday tasks. The index consists of 20 questions regarding the function of the upper and lower extremities. These questions are summarized in 8 categories: dressing and grooming, arising, eating, walking, hygiene,reach, grip, activities. Each question is evaluated according to the degree of severity on a scale ranging from 0 (without any difficulty) to 3 (unable to do).

Medical Outcomes Study Short Form 36 (MOS SF-36) is generic assessment of health status that consists of 36 questions within 8 domains including Physical Functioning (PF), Role Functioning - Physical (RP), Bodily Pain (BP), General Health (GH), Vitality (VT), Social Functioning (SF), Role Functioning - Emotional (RE), Mental Health (MH) and Reported Health Transition (HT). Results from each domain are summarized and transformed into a scale ranging from 0 (worst) to 100 (best) with the exception of HT. The score range for HT is 0 (worst) to 5 (best).

European Quality of Life 5 Dimensions (EQ-5D) is a self-reported health outcome which measures mobility, self care, usual activities, pain discomfort, anxiety depression. An overall score is derived that measures from -0.59 (worst) to +1 (best).

In addition, health state is measured on the thermometer scale (score 0 to 100) with higher scores representing better health status.

The Disease Activity Score 28 measures disease activity based on the number of swollen and tender joints (28 joints), erythrocyte sedimentation rate, and patient's global assessment of disease activity on a visual scale. DAS28 is a unit scale from 0 (best value) to 10.0 (worst value).

Bath as Disease Activity Index (BASDI) measures fatigue, pain (neck, hip, other joints), tender sensitive body sites, and morning stiffness for patients suffering from AS. Scores range from 0 to 10 with higher scores representing worse disease activity.

Physician's and Patient's Global Assessment of Disease Activity (PGA) are measured using a visual analogue scale with scores ranging from 0 to 100 (higher scores indicate worse disease activity).

Physician's and Patient's Global Assessment of State of Health was measured using a visual analogue scale with scores from 0 to 100 (higher scores indicate worse health state).

Erythrocyte sedimentation rate (ESR) is a nonspecific lab value that measures inflammation from arthritic disease. A decrease in the level indicates reduction in inflammation and therefore improvement.

The test for C-Reactive Protein (CRP) is a laboratory measurement for evaluation of an acute phase reactant of inflammation through the use of an ultrasensitive assay. A decrease in the level of CRP indicates reduction in inflammation and therefore improvement.