TABLE 2.

Association between global 18F-Florbetapir-PET SUVR and CSF Aβ42 levels in the ADNI sample.

Reference region	Whole cerebellum			White matter
Correction method	No PVC	PVC-2	PVC-3	No PVC	PVC-2	PVC-3
Total range	−0.62	−0.61	−0.67***	−0.68***	−0.68***	−0.69***
Low SUVR (1st tertile)	−0.01	−0.02	−0.34***	−0.21$	−0.21$	−0.31*
Middle SUVR (2nd tertile)	−0.44	−0.43	−0.58***	−0.53	−0.50	−0.54
High SUVR (3rd tertile)	0.07	0.08	−0.04*	−0.23**	−0.18*	−0.21**

^$/*/**/*** = Correlation coefficient significantly different from correlation using standard SUVR method (no PVC, whole cerebellum reference), Steiger’s Z test, p < 0.05/0.01/0.001/0.0001.