. Author manuscript; available in PMC: 2016 Aug 15.

Published in final edited form as: Osteoarthritis Cartilage. 2008 Mar 17;16(9):1039–1046. doi: 10.1016/j.joca.2008.01.008

Table VI.

Odds of KP given associated correlates: multivariable backward analysis

KP	Odd ratio (95% CI)	P
BMI (kg/cm²)	1.07 (1.02–1.13)	0.009
BP (Y/N)	1.99 (1.29–3.07)	0.002
HP (Y/N)	6.02 (3.61–10.71)	<0.001
FP (Y/N)	2.03 (1.25–3.31)	0.004
Education (years)	0.92 (0.85–0.99)	0.028
Knee extension torque (N/dm)	0.96 (0.94–0.98)	0.017
Lower extremity power (W)	0.99 (0.98–1.00)	0.001
Trunk flexibility (cm)	1.16 (1.09–1.23)	<0.001
Hip abduction ROM (°)	0.97 (0.93–1.00)	0.046
Knee flexion ROM (°)	0.97 (0.96–0.99)	0.001

Final model: LR χ² = 1965.63; Prob > χ² < 0.001; Pseudo R² = 0.2424. The initial fully adjusted model for KP also included: age, sex, weight, SRH, physical activity last year, work activity age 20–60, hip extrarotation ROM and knee extension ROM.