Nicholson, Amanda and Ford, Elizabeth and Davies, Kevin A and Smith, Helen E and Rait, Greta and Tate, A Rosemary and Petersen, Irene and Cassell, Jackie (2013) Optimising use of electronic health records to describe the presentation of rheumatoid arthritis in primary care : a strategy for developing code lists. PLoS ONE, 8 (2). e54878. ISSN 1932-6203
Full text not available from this repository.Abstract
Research using electronic health records (EHRs) relies heavily on coded clinical data. Due to variation in coding practices, it can be difficult to aggregate the codes for a condition in order to define cases. This paper describes a methodology to develop 'indicator markers' found in patients with early rheumatoid arthritis (RA); these are a broader range of codes which may allow a probabilistic case definition to use in cases where no diagnostic code is yet recorded.