Epidemiology: Interpreting studies of interactions between RA risk factors.

Karlson, Elizabeth W; Costenbader, Karen H · Nat Rev Rheumatol · 2010

case_control · Level III

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Abstract

Interactions between HLA and PTPN22 genotypes and smoking have been implicated in overall susceptibility to rheumatoid arthritis as well as the incidence of particular disease phenotypes in case-control and case-only studies. As recent epidemiological evidence shows, deciphering these interactions demands consideration of the analytical approach used.

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