Table 4.

Relationships between laboratory data and plasma Aβ levels.

	Aβ40			Aβ42			Aβ40/42 ratio
	P	β	R	P	β	R	P	β	R
WBC	<0.001	17.02	0.30	0.228	0.48	0.06	<0.001	1.03	0.16
Hb	<0.001	−0.99	0.29	<0.001	−0.20	0.08	<0.001	0.07	0.15
Bilirubin	0.010	−1.87	0.28	0.020	−0.22	0.06	0.722	0.02	0.14
AST	0.013	−6.73	0.28	<0.001	−1.20	0.06	0.061	0.36	0.14
ALT	<0.001	−6.58	0.29	<0.001	−1.16	0.07	0.008	0.31	0.15
γ‐GTP	<0.001	−4.07	0.29	<0.001	−0.90	0.08	<0.001	0.33	0.15
Albumin	0.005	−3.84	0.28	<0.001	−0.59	0.06	0.146	0.14	0.14
eGFR	<0.001	−0.29	0.34	<0.001	−0.03	0.11	0.942	0	0.14
UA	<0.001	0.95	0.29	0.420	−0.03	0.06	<0.001	0.09	0.16
TC	<0.001	−0.06	0.29	0.075	−0.002	0.06	<0.001	−0.003	0.15
TG	0.062	0.01	0.28	0.825	0	0.06	0.009	0.001	0.15
HDL	<0.001	−0.09	0.29	0.385	−0.002	0.06	<0.001	−0.01	0.15
LDL	<0.001	−0.05	0.29	0.094	−0.003	0.06	0.026	−0.002	0.15
Potassium	<0.001	4.43	0.29	<0.001	0.64	0.07	0.213	−0.11	0.14
BG	0.919	0.002	0.28	0.063	0.01	0.06	0.010	−0.004	0.15
Ferritin	0.002	−0.37	0.28	<0.001	−0.09	0.08	<0.001	0.04	0.15
fT4	0.009	6.17	0.28	0.860	−0.06	0.06	<0.001	0.58	0.15
Insulin	0.045	0.15	0.28	0.048	0.02	0.06	0.527	−0.003	0.14
C‐peptide	<0.001	8.28	0.29	0.041	0.60	0.06	0.181	0.21	0.14
GA	0.006	40.71	0.28	<0.001	7.51	0.06	0.020	−2.50	0.15
BNP	<0.001	4.00	0.29	<0.001	0.49	0.06	0.653	−0.04	0.14

WBC, white blood cell count; Hb, hemoglobin; AST, aspartate aminotransferase; ALT, alanine aminotransferase; γ‐GTP, γ‐glutamyl transpeptidase; eGFR, estimated glomerular filtration rate; UA, uric acid; TC, total cholesterol; TG, triglycerides; HDL, high‐density lipoprotein cholesterol; LDL, low‐density lipoprotein cholesterol; BG, blood glucose; fT4, free thyroxine; GA, glycoalbumin; BNP, brain natriuretic peptide.

Results of a multiple regression analysis with Aβ as the dependent variable and age and each parameter as explanatory variables. P‐values for each parameter were corrected for age. β‐values indicate standardized partial regression coefficients for each parameter. R indicates the multiple correlation coefficient in the multiple regression equation.