Table 2 Rheumatoid factor (RF), anti-cyclic citrullinated peptide (CCP), shared epitope (SE) and PTPN22 status
EtanerceptInfliximabAdalimumabCombined
RF positive219/241 (91)189/218 (87)54/62 (87)462/521 (89)
Anti-CCP positive206/241 (86)177/218 (81)42/62 (68)425/521 (82)
SE carriage184/225 (82)208/261 (80)40/49 (82)432/535 (81)
PTPN22 carriage78/268 (29)93/287 (33)17/64 (27)188/619 (30)

  • Values are n of positive/total available (% positive).