Table 1. Demographic Characteristics of the 220 Study Patients With Dementia.

Characteristic	Patient Group by Diagnosis
	All (N = 220)	AD (n = 101)	FTD (n = 119)
Sex, No. (%)
Male	92 (41.8)	34 (33.7)	58 (48.7)
Female	128 (58.2)	67 (66.3)	61 (51.3)
Age at disease onset, median (range), y	63 (30-88)	64 (44-88)	60 (30-84)
Age at death, median (range), y	72 (34-96)	76 (57-96)	70 (34-94)
Disease duration, median (range), y	9 (1-28)	10 (1-23)	8 (1-28)

Abbreviations: AD, Alzheimer disease; FTD, frontotemporal dementia.