Table 4. Correlations between the study parameters.

BDNF: brain-derived neurotrophic factor, FBG: fasting blood glucose, HbA1c: hemoglobin A1c, PTX-3: pentraxin-3, sMMSE: standardized mini-mental test

*p<0.05, **p<0.01

		Age	sMMSE	PTX-3	BDNF	HbA1C	FBG
Age	Correlation coefficient		-0.325*	0.068	0.135	-0.044	0.044
	p-value		0.021	0.638	0.351	0.763	0.761
sMMSE	Correlation coefficient	-0.325*		0.103	0.316*	-0.262	0.046
	p-value	0.021		0.478	0.025	0.066	0.750
PTX-3	Correlation coefficient	0.068	0.103		0.440**	-0.273	0.060
	p-value	0.638	0.478		0.001	0.055	0.681
BDNF	Correlation coefficient	0.135	0.316*	0.440**		-0.354*	-0.004
	p-value	0.351	0.025	0.001		0.012	0.979
HbA1C	Correlation coefficient	-0.044	-0.262	-0.273	-0.354*		0.528**
	p-value	0.763	0.066	0.055	0.012		<0.001
FBG	Correlation coefficient	0.044	0.046	0.060	-0.004	0.528**
	p-value	0.761	0.750	0.681	0.979	<0.001