Table 1 Demographics of the discovery sample.

From: Metabolomic signatures of cognitive function in a type 2 Diabetes-Enriched cohort

 

European Americans

African Americans

P

n

137

134

 

Female (n, (%))

65 (47%)

78 (58%)

0.077

Diabetes Heart Study (DHS) and African American-Diabetes Heart Study (AA-DHS)

Age (years)

60.4 ± 9.4

58.5 ± 8.7

0.0008

DHS MIND and AA-DHS MIND

   

Age (years)

67.1 ± 9.4

63.4 ± 8.8

0.0008

Body Mass Index (BMI; kg/m2)

31.9 ± 6.7

34.5 ± 8.6

0.0073

Glycated Hemoglobin (HbA1c; %)

7.3 ± 1.3

7.6 ± 1.6

0.056

Education (n, (%))

  

< 0.0001

     Less than high school

26 (19%)

18 (13%)

 

     High school

72 (53%)

42 (31%)

 

     Above high school

39 (28%)

74 (55%)

 

Lipid lowering medication (n, (%))

73 (44%)

87 (65%)

0.052

Prevalent CVD (n, (%))

47 (28%)

33 (25%)

0.089

Smoking (n, (%))

  

0.019

Never

59 (43%)

51 (38%)

 

Former

64 (47%)

51 (38%)

 

Current

14 (10%)

30 (22%)

 

Hypertension (n, (%))

125 (91%)

117 (87%)

0.48

Rey Auditory Verbal Learning Task (RAVLT)

   

     Sum of 5 Trials

40.5 ± 11.0

36.5 ± 9.10

0.0005

     Delayed Recall

7.0 ± 3.4

5.1 ± 3.3

< 0.0001

Modified Mini-Mental State Examination (3MSE)

89.8 ± 7.6

85.0 ± 9.3

< 0.0001

Digit Symbol Coding (DSC)

47.7 ± 14.3

45.7 ± 14.6

0.24

Stroop Task

35.5 ± 18.1

36.2 ± 17.4

0.86

Semantic Fluency

15.7 ± 4.3

15.0 ± 4.4

0.19