TABLE 3.

Correlations

	ABCG1 CEC	ABCA1 CEC	Passive diffusion CEC
Age	r = −0.078	r = −0.102	r = −0.123
	P = 0.463	P = 0.358	P = 0.268
apoE	r = 0.370	r = 0.011	r = 0.170
	P < 0.001	P = 0.920	P = 0.132
apoE4	r = 0.046	r = −0.153	r = −0.174
	P = 0.675	P = 0.176	P = 0.121
apoA-I	r = 0.048	r = −0.061	r = 0.354
	P = 0.692	P = 0.626	P = 0.003
Aβ 1-42	r = 0.305	r = 0.203	r = 0.068
	P = 0.025	P = 0.172	P = 0.647
Total tau	r = −0.212	r = −0.348	r = 0.092
	P = 0.127	P = 0.018	P = 0.542
Phosphorylated tau	r = −0.225	r = −0.294	r = 0.269
	P = 0.106	P = 0.048	P = 0.070

The relationship between parameters was established by correlation analysis, and the Spearman coefficients are reported. Significant associations are shown in bold.