Comparisons between comorbid conditions and health care consumption in rheumatoid arthritis patients with or without biological disease-modifying antirheumatic drugs: A register-based study

Symptoms and prognosis of patients with rheumatoid arthritis (RA) have improved with more intensive therapy, including the biological disease-modifying anti-rheumatic drugs (bDMARDs). Real life data concerning how comorbidities are distributed among patients treated or not treated with bDMARDs are scarce.