. Author manuscript; available in PMC: 2016 Mar 1.

Published in final edited form as: Osteoarthritis Cartilage. 2014 Dec 20;23(3):391–396. doi: 10.1016/j.joca.2014.12.013

Table 3.

Multivariable Logistic Regression Model of Association Between Group and Progressive Knee OA

Variable ^*	Odds	95% CI for OR
	Ratio	Lower	Upper
Sex (female)	1.3	0.8	2.1
Race (white)	2.7	1.3	5.6
Age	1.0	0.98	1.03
BMI	1.0	0.93	1.04
KOOS Pain	1.01	0.99	1.03
WOMAC Function	1.0	0.97	1.03
OA worsening (yes)	5.0	2.6	9.8
Constant

For dichotomous variables, the group of interest is in parentheses. For sex, male is the reference group, for race, non-white persons is the reference group, and for OA worsening, unchanged radiographic OA is the reference group.