Table 1.

Descriptive information from ADAMS weighted to the US population*

Diagnosis	Etiology	Weighted N	Age	MMSE	CDR	DSRS	Blessed	IADLs	Del Recall	ε4
Normal		15,557,113	77.84	27.84	0.12	1.67	0.31	0.22	6.34	23.5%
CIND	Other	3,381,975	80.67	25.03	0.43	6.46	1.17	1.25	4.62	16.0%
CIND	Prodromal AD	1,947,924	82.08	24.28	0.49	5.45	1.26	0.73	3.18	46.3%
Dementia	Vascular/ other	1,004,790	82.15	16.41	1.50	21.19	5.55	3.60	1.64	39.7%
Dementia	AD	2,301,398	85.71	13.78	1.85	22.28	6.94	3.20	0.58	38.8%

Weighted using ADAMS sampling weight.

Acronyms

ADAMS Aging, Demographics, and Memory Study

AD Alzheimer’s disease

CIND Cognitive impairment not dementia

CDR Clinical Dementia Rating Scale

DSRS Dementia Severity Rating Scale

Blessed Blessed Dementia Scale

IADLs Number (out of 6) of impaired instrumental activities of daily living

ε4 any apolipoprotein E ε4 allele

Del Recall: Word List Recall