. Author manuscript; available in PMC: 2014 Dec 1.

Published in final edited form as: J Rheumatol. 2013 Nov 1;40(12):2088–2096. doi: 10.3899/jrheum.130302

Table 2.

Patient risk Factors associated with JIA-U

Risk Factor	Univariate Odds Ratio (95% Confidence Interval)
Gender (Female)	1.34 (1.00 – 1.68)^*
Race (AA)	0.47 (0.26 – 0.82)^**
Age at arthritis onset	0.86 (0.83 – 0.88)^***
JIA subtype
Systemic	0.05 (0.01 – 0.19)^***
Polyarticular RF-negative	0.70 (0.56 – 0.88)^**
Polyarticular RF-positive	0.10 (0.03 – 0.32)^***
Oligoarticular persistent	1.93 (1.58 – 2.36)^***
Oligoarticular extended	2.15 (1.61 – 2.87)^***
Psoriatic	1.08 (0.74 – 1.60)
Enthesitis related	0.66 (0.46 – 0.94)^*
Undifferentiated	0.75 (0.42 – 1.33)
Labs
ANA positive	2.12 (1.71 – 2.63)^***
RF positive	0.13 (0.03 – 0.54)^**

p< 0.05,

^**

p < 0.01,

^***

p < 0.001