Quality of life of patients with rheumatoid arthritis under biological therapy.

Objective: assessing health-related quality of life (HRQL) in patients with rheumatoid arthritis (RA), before and after treatment with biological therapy.

Methods: a longitudinal study, conducted from November 2010 to September 2011, with implementation of the instruments HAQ II (health assessment questionnaire) and SF-36 (medical outcomes short-from health survey). Barlett test, Anova, Friedman and paired t-test were performed for multiple extracts.