Table 2 Correlation between cerebrospinal fluid FL-Ng, CT-Ng, age, MMSE, and biomarker levels for the clinical study^a

FL-Ng

FL-Ng

FL-Ng

Control (N = 26)

MCI-AD (N = 18)

AD (N = 23)

Age

rho = − 0.136, N.S.

rho = 0.430, N.S.

rho = 0.061, N.S.

MMSE

rho = − 0.001, N.S.

rho = 0.172, N.S.

rho = − 0.241, N.S.

Aβ_1–42

rho = 0.655, P = 0.0003

rho = 0.351, N.S.

rho = −0.017, N.S.

T-tau

rho = 0.739, P = 0.00002

rho = 0.268, N.S.

rho = 0.500, P = 0.015

P-tau

rho = 0.627, P = 0.001

rho = 0.257, N.S.

rho = 0.391, N.S.

CT-Ng

CT-Ng

CT-Ng

Control (N = 26)

MCI-AD (N = 18)

AD (N = 23)

Age

rho = −0.044, N.S.

rho = 0.010, N.S.

rho = 0.043, N.S.

MMSE

rho = 0.077, N.S.

rho = 0.245, N.S.

rho = −0.132, N.S.

Aβ_1–42

rho = 0.782, P = 0.0003

rho = 0.194, N.S.

rho = 0.032, N.S.

T-tau

rho = 0.787, P < 0.00001

rho = 0.326, N.S.

rho = 0.664, P = 0.0006

P-tau

rho = 0.677, P = 0.0002

rho = 0.621, P = 0.008

rho = 0.728, P = 0.00008