Table 2. Correlations between increased plasma levels of t-tau/Aβ_1-42 and decreased cortical FDG uptake.

Cortical region	CS (mm2)	r	p
t-tau
L posterior cingulate	54592	0.62	10-6
L superior temporal	119	0.32	10-2
R posterior cingulate	60700	0.61	10-7
R inferior temporal	175	0.35	10-3
Aβ1-42
L superior parietal	756	0.49	10-4
L superior frontal	304	0.46	10-3
L superior temporal	232	0.51	10-4
R lateral orbitofrontal	1896	0.56	10-4
R superior frontal	1612	0.57	10-5
R posterior cingulate	205	0.66	10-5

CS: cluster size; it refers to the extent of significant correlations between plasma t-tau/Aβ_1-42 and cortical FDG uptake. Left (L) and right (R) cortical hemisphere. r: Pearson correlation coefficient; p: exact p-value (corrected for multiple comparisons).