Table 1 Demographic and clinical characteristics of young-old and very-old groups

Number

38

20

Age (years)

69.1 (3.9)

84.8 (4.0)

<.001

Gender (M/F) (number)

14/24

9/11

.55

Education (years)

15.9 (1.9)

15.7 (3.0)

.69

APOE (ε4-negative/ε4-positive) (number)

21/15

14/6

.39

Systolic BP

125.8 (14.2)

136.2 (17.8)

<.05

Diastolic BP

74.9 (7.7)

77.8 (11.7)

.26

Mean arterial pressure

91.9 (8.6)

97.3 (13.0)

.06

Pulse pressure

50.9 (12.4)

58.4 (11.3)

<.05

Anti-hyperintensive medication use (number currently prescribed medication/number not currently prescribed medication)

17/21

14/6

.07

CVLT-II Long delay free recall z-score

0.3

0.6

.42

D-KEFS Verbal fluency (letter) ss

12.4

13.2

.46

D-KEFS Trail making test switching ss

12.3

12.1

.82