. Author manuscript; available in PMC: 2021 Dec 1.

Published in final edited form as: J Alzheimers Dis. 2019;69(3):783–793. doi: 10.3233/JAD-181282

Table 1.

Demographics of the sample

	Participants (n = 1,396)

CSF Aβ_1–42 (%)	73.0%
PET scan (%)	76.8%
Age at baseline (y)^a	73.3 (7.2)
Gender (% male)	55.4%
Diagnosis	330 CN no SMC
	103 SMC
	667 MCI
	296 AD
APOE ε4 carriers (%)	54.9%
AV-45 Average CB^b	1.25 (1.13–1.51)
AV-45 Average WM^b	0.71 (0.65–0.84)
AV-45 Summary CB^b	1.13 (1.01–1.39)
AV-45 Summary Composite^b	0.80 (0.71–0.99)
Aβ_1–42 (pg/mL)^b	157.5 (130.0–220.0)

AD, Alzheimer disease; CB, cerebellum; CN, cognitively normal; CSF, cerebrospinal fluid; Coef., coefficient; MCI, mild cognitive impairment; SE, standard deviation; WM, white matter.