Table 2.

P-values for the group comparison of partial correlation graph statistics (Figure 9).

		Amyloid-β			Metabolism			Volume
		EMCI	LMCI	AD	EMCI	LMCI	AD	EMCI	LMCI	AD
Clustering coefficient	CN	0.167	0.999	0.178	0.323	0.021	0.718	0.009	0.977	0.999
	EMCI		0.183	<0.001		0.630	0.031		0.030	0.012
	LMCI			0.162			<0.001			0.990
Path length	CN	0.264	<0.001	0.630	0.015	0.001	0.357	0.106	0.664	0.005
	EMCI		0.189	0.922		0.884	<0.001		0.667	<0.001
	LMCI			0.044			<0.001			<0.001
Small-world coefficient	CN	0.101	0.940	0.301	0.184	0.002	0.701	0.011	0.967	0.987
	EMCI		0.313	<0.001		0.411	0.011		0.042	0.029
	LMCI			0.096			<0.001			0.999

Adjusted P-values from Tukey's honest significant difference tests, controlling for family-wise error rate within each comparison block. CN, cognitively healthy elderly controls; EMCI/LMCI, early and late amnestic mild cognitive impairment; AD, Alzheimer's dementia.