LTA

MeDi

LTA+

LTA−

MeDi+

MeDi−

N

21

24

18

27

Age, y, mean (SD)

54 (11)

54 (11)

54 (11)

54 (11)

Female gender, %

57%

83%

83%

63%

Education, y, mean (SD)

16 (2)

16 (2)

16 (2)

16 (2)

Family history of LOAD, % positive

62%

79%

72%

70%

APOE ε4 status*, % positive

33%

50%

53%

36%

Ethnicity, % White/Non-Hispanic

71%

92%

78%

85%

Hypertension, % yes

26%

23%

12%

33%

Anthropometrics and Labs, mean (SD)

Body mass index [unitless]

26 (4)

25 (4)

24 (4)

26 (5)

Hip to waist ratio [unitless]

1.4 (0.1)

1.5 (0.4)

1.0 (0.3)

1.2 (0.2)

Blood pressure (mm/Hg)

Systolic

Diastolic

119 (15)

68 (12)

120 (15)

74 (7)

122 (12)

75 (8)

119 (16)

70 (15)

HOMA score (mg/dl)

1.1 (0.6)

1.8 (2.5)

1.8 (2.1)

1.3 (2.1)

Cholesterol (mg/dl)

207 (43)

195 (36)

207 (44)

197 (35)

Triglycerides (mg/dl)

86 (40)

95 (37)

98 (44)

85 (33)

HDL/LDL [unitless]

0.59 (0.22)

0.51 (0.17)

0.54 (0.16)

0.56 (0.22)

Homocysteine (micromol/l)

10.6 (2.3)

10.0 (2.8)

10.8 (3.1)

9.8 (2.1)

Neuropsychological Tests, mean (SD)

Mini mental state exam

29 (1)

29 (1)

29 (1)

29 (1)

Digit symbol substitution

65 (11)

61 (9)

63 (10)

62 (11)

Paired associates delayed recall

7 (3)

7 (3)

7 (2)

6 (3)

Paragraph delayed recall

10 (3)

10 (2)

10 (3)

10 (3)

Designs

8 (2)

8 (2)

8 (2)

8 (2)

Object naming

55 (12)

53 (13)

55 (12)

53 (13)

WAIS-vocabulary

66 (9)

62 (15)

66 (10)

62 (18)