RT Journal
A1 Pang H, Wu X, Xu J
T1 REsponse to etanercept in juvenile idiopathic arthritis
JF JAMA
JO JAMA
YR 2012
FD March 21
VO 307
IS 11
SP 1140
OP 1141
DO 10.1001/jama.2012.328
UL http://dx.doi.org/10.1001/jama.2012.328
AB 
To the Editor: The study presented by Dr Otten and colleagues assessed factors associated with treatment response to etanercept in patients with juvenile idiopathic arthritis (JIA).1 They found that approximately one-third of the patients with JIA achieved an excellent response, which was associated with low baseline disability scores, low numbers of disease-modifying antirheumatic drugs used before initiating etanercept, and younger age at onset of JIA. One-third achieved a poor response, which was associated with systemic JIA and female sex.1