Table 3.

Correlations between CpG4 methylation levels and patient characteristics in the 12 AD patients

	ρ	p value
Age	-0.384	0.218
Duration of illness	0.588	0.044*
MMSE score	-0.391	0.209
FAB score	-0.308	0.329
Behave-AD score	0.156	0.629
CDR SB	0.541	0.07
Plasma BDNF levels	0.055	0.880

ρ = Spearman's correlation coefficient.

^*p < 0.05.