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BMJ Publishing Group, BMJ Open, 1(5), p. e006029-e006029, 2015

DOI: 10.1136/bmjopen-2014-006029

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A validation study of a new classification algorithm to identify rheumatoid arthritis using administrative health databases: case–control and cohort diagnostic accuracy studies. Results from the RECord linkage On Rheumatic Diseases study of the Italian Society for Rheumatology

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

To develop and validate a new algorithm to identify patients with rheumatoid arthritis (RA) and estimate disease prevalence using administrative health databases (AHDs) of the Italian Lombardy region.