Predictor

Value

OR

95% CI

p-value

Gender

Male

-

-

-

Female

(indicator)

-

-

Diagnosis

Systemic

(indicator)

-

-

Poly RF+

0.13

0.116

Poly RF−

2.50

0.382

Oligoarticular

-

0.999

Other

0.999

Diagnosis

Systemic

0.18

0.025, 1.349

0.095

Poly RF+

0.023

0.002, 0.314

0.005*

Other (Poly RF−, Oligo or psoriatic)

(indicator)

-

0.016

Anti-CCP

Positive

0.042

0.003, 0.619

0.021*

Negative

(indicator)

0.006