. 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 2. Statistical analyses of microcrack morphometric results between groups.

Property	ANOVA				Logistic Regression (separate FRAC from NORM)
	NORM	FRAC	p-value	% difference compared to NORM	r²	p-value	AUC^†
GVSD	5.95±0.84	6.64±0.46	0.0019	11.6	0.14	0.0024	0.72
Cr.N	4.45±0.71	5.33±0.84	0.0003	19.8	0.20	0.0003	0.79
Cr.Le (μm)	23.03±2.69	19.15±3.04	<0.0001	-16.8	0.26	<0.0001	0.83
Cr.Ar (μm²)	24.09±3.02	20.27±2.64	<0.0001	-15.9	0.27	<0.0001	0.83

^†

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