Table 1.

Participant characteristics of Alzheimer’s Disease cohort (Total n=121,538).

Variables	Participants n (%)
Sex, Female	(62.2)
Age, Mean (SD)	79.5 (8.6)
Age Range
50–54	960 (0.8)
55–59	2085 (1.7)
60–64	4143 (3.4)
65–69	7759 (6.4)
70–74	16430 (13.5)
75–79	25065 (20.6)
80–84	28271 (23.3)
85+	36825 (30.3)
Health Care Utilization Mean (SD) #
Number of Unique Drug Classes	8.8 (4.5)
Number of Generics	9.2 (4.9)
Number of Filled Prescriptions	26.7 (20.9)
Number of Ambulatory visits	9.3 (9.5)
Number of Emergency Department Visits	0.4 (.8)
Number of Non-acute institutional encounters	0.5 (1.5)
Number of Other Ambulatory encounters	4 (9.3)

^#These mean values apply from 6 months prior to cohort entry date