. Author manuscript; available in PMC: 2011 Oct 1.

Published in final edited form as: J Arthroplasty. 2009 Oct 30;25(7):1104–1109. doi: 10.1016/j.arth.2009.08.009

Table 2.

Comparison of Regression Models Used to Predict (a) 1-Month TUG (n = 140), (b) 3-Month TUG (n = 120), and (c) 6-Month TUG (n = 106)

	r	R²	R² Change	F Change	df	Significant F Change
(a) Model for 1-mo TUG
Preoperative TUG	0.585	0.338	0.343	71.952	1,138	<0.001
Preoperative TUG + BMI	0.586	0.334	<0.001	0.080	1,137	0.778

(b) Model for 3-mo TUG
Preoperative TUG	0.756	0.568	0.571	157.220	1,118	<0.001
Preoperative TUG + BMI	0.757	0.566	0.002	0.549	1,117	0.460

(c) Model for 6-mo TUG
Preoperative TUG	0.738	0.541	0.545	124.535	1,104	<0.001
Preoperative TUG + BMI	0.742	0.542	0.006	0.431	1,103	0.247