Abstract
ObjectivesMortality in patients with rheumatoid arthritis (RA) is higher than in the general population. We investigated mortality in the COBRA-trial cohort after 23 years follow-up, compared with a reference sample of the Dutch population.MethodsThe COBRA-trial randomised patients with early RA to sulfasalazine monotherapy (SSZ, n=79) or a combination of SSZ, low-dose methotrexate and initially high, step-down prednisolone (COBRA, n=76). We compared the mortality in the COBRA-trial up to 2017 to a reference sample of the general population in the Netherlands (standardised mortality ratio, SMR), and its relation to early prognostic factors through stepwise Cox regression.ResultsDuration of follow-up in patients alive was mean 23 (range 22–24) years. In total, 44 patients died (28%, SMR=0.80 [95% CI 0.59 to 1.06]); 20 of 75 COBRA patients (27%, SMR 0.75 [0.47 to 1.14]) and 24 of 79 SSZ patients (30%, SMR 0.85 [0.56 to 1.25]); p=0.61). In the reference sample of the general population, 55 people (36%) died. 5 factors were significantly associated with increased mortality hazard: damage progression at 28 weeks; high Health Assessment Questionnaire (HAQ) score and absence of HLA-DR 2 or 3; disease duration from start of complaints was also significant, but showed an uninterpretable pattern.ConclusionsThis prospective trial cohort study of early RA is one of the first to show similar mortality compared with the general population after 23 years of follow-up. It confirms that early, intensive treatment of RA has long-term benefits and suggests that treating to target is especially important for patients with poor prognosis.
Subject
General Biochemistry, Genetics and Molecular Biology,Immunology,Immunology and Allergy,Rheumatology
Cited by
29 articles.
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