. Author manuscript; available in PMC: 2009 Jun 1.

Published in final edited form as: Bone. 2008 Feb 15;42(6):1184–1192. doi: 10.1016/j.bone.2008.01.022

Table 5. Comparison of change rates of mechanical properties between the fracture and normal groups.

Property^†	ANOVA				Logistic Regression (separate FRAC from NORM)
	NORM	FRAC	p-value	% difference compared to NORM	r²	p-value	AUC^‡
Deflection change rate (×10^-5)	1.80±0.17	1.80±0.01	0.73	-	-	-	-
Force change rate (×10^-7)	1.10±1.08	1.10±0.62	0.90	-	-	-	-
Stiffness change rate (×10^-5)	-0.50±0.23	-0.60±0.35	0.0025	20	0.14	0.0023	0.75
Compliance change rate (×10^-2)	1.06±0.07	1.13±0.09	0.0029	6.6	0.14	0.0028	0.75

^†

The real values of the mechanical results are the value in the following boxes multiplying 10^-3 or the other.

^‡

AUC is the area under ROC curve, with a maximum value of 1.

-indicates no logistic regression analysis due to no significant difference between the two groups.