The Danish nationwide clinical register for patients with rheumatoid arthritis: DANBIO
Authors Ibfelt EH, Jensen DV, Hetland ML
Received 22 November 2015
Accepted for publication 28 January 2016
Published 25 October 2016 Volume 2016:8 Pages 737—742
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Colin Mak
Peer reviewer comments 3
Editor who approved publication: Professor Henrik Toft Sørensen
Else Helene Ibfelt,1 Dorte Vendelbo Jensen,2,3 Merete Lund Hetland2,4
1Registry Support Centre (East), Epidemiology and Biostatistics, Research Centre for Prevention and Health, Rigshospitalet, Glostrup University Hospital, 2DANBIO Registry and Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Centre of Head and Orthopedics, Rigshospitalet, Glostrup, 3Department of Rheumatology, Herlev and Gentofte University Hospital, Hellerup, 4Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
Introduction: DANBIO is a research register and a data source for rheumatologic diseases (rheumatoid arthritis [RA], axial spondyloarthritis, and psoriatic arthritis) for monitoring clinical quality at the national, regional, and hospital levels.
Study population: The register includes patients with rheumatologic diseases who are treated at a hospital or a private rheumatologic clinic. Registration is mandatory for all patients with RA regardless of treatment and also for patients with other diagnoses if treated with biological disease-modifying antirheumatic drugs. Since 2006, the registration has been done electronically, including patient-reported outcome measures registered electronically by the patients with the use of touch screens.
Main variables: Core variables such as diagnosis, year of diagnosis, age, and sex are registered at the beginning. Data entered at later visits included the following: patient-reported outcomes for disease activity, pain, fatigue, functional status, and physician-reported objective measures of disease activity, treatment, C-reactive protein, and, when indicated, imaging. For subgroups of patients, the variables such as quality of life, sociodemographic factors, lifestyle, and comorbidity are also registered.
Descriptive data: The DANBIO cohort comprised ~26,000 patients with RA, 3,200 patients with axial spondyloarthritis, and 6,200 patients with psoriatic arthritis in 2015. DANBIO has high nationwide coverage and completeness on key data variables. More than 60 original papers as well as annual reports of clinical quality (since 2005) have been published.
Conclusion: DANBIO is a powerful register for research in rheumatologic diseases and furthermore serves as a Clinical Quality Register with the aim of monitoring treatment quality in patients with RA in Denmark.
Keywords: rheumatoid arthritis, axial spondyloarthritis, psoriatic arthritis, DANBIO register clinical quality, epidemiology
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