Determination of smoking status of rheumatoid arthritis patients by means of a self-reported questionnaire and serum cotinine assay: a cross-sectional study.


Ann Rheum Dis December 2011 Vol 70 No 12 2235 Rheumatoid arthritis (RA) is characterised by a chronic, destructive and debilitating arthritis.1 Smoking may adversely infl uence the severity of RA as well as its response to treatment in a dose-dependent manner.1–4 Furthermore, the link between passive smoking and RA has been suggested by some researchers.5… (More)
DOI: 10.1136/ard.2011.151118

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