TABLE 1

Detection of Amyloid-β Changes (Composite SUVR)

	Aβ_dep (mean ± SD)		P (negative vs. positive) (t test)
RR	Negative	Positive	Aβ_dep	ΔSUVR_1y	ΔSUVR_2y
Cerebellar gray matter	0.10 ± 1.72	1.36 ± 1.98^†	0.02^*	0.04^*	0.02^*
Whole cerebellum	0.13 ± 1.47	1.32 ± 1.75^†	0.01^*	0.03^*	0.01^*
Pons	−0.54 ± 2.45	0.87 ± 3.29^†	0.06	0.46	0.00^*
Subcortical white matter	2.10 ± 2.40^†	2.00 ± 2.31^†	0.55	0.15	0.16

↵* Statistically significant P values (P < 0.05).
↵† RR showed significant Aβ_dep (i.e., statistically superior to zero).
ΔSUVR = change in SUVR.