Table 2.

Correlation analysis among CSF biomarkers in AD patients.

	Neurogranin	T-tau	P-tau	β42	β40	β42/40 Ratio
Neurogranin		0.808 p < 0.001	0.655 p < 0.001	0.053 p = 0.780	0.321 p = 0.118	−0.592 p = 0.001
T-tau			0.810 p < 0.001	−0.030 p = 0.877	0.254 p = 0.221	−0.492 p = 0.006
P-tau				0.013 p = 0.947	0.333 p = 0.104	−0.563 p = 0.001
β42					0.764 p < 0.001	0.463 p = 0.010
β40						−0.024 p = 0.908
β42/40 ratio