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Table 3 Cohort demographics

From: Development of a machine learning model to predict mild cognitive impairment using natural language processing in the absence of screening

 

ACT cohort

General population

N

%

N

%

Total people

1473

100

2391

100

Age at index

    

 65–69

14

0.95

456

19.07

 70–74

107

7.26

515

21.54

 75–79

260

17.65

461

19.28

 80–84

395

26.82

450

18.82

 85+ 

697

47.32

509

21.29

Sex

    

 Female

954

64.77

1419

59.35

 Male

519

35.23

972

40.65

Race

    

 American Indian/Alaska native

8

0.54

26

1.09

 Asian

40

2.72

104

4.35

 Black or African American

61

4.14

51

2.13

 Native Hawaiian or Other Pacific Islander

3

0.2

1

0.04

 Other

10

0.68

15

0.63

 Unknown or not reported

27

1.83

46

1.92

 White

1324

89.88

2148

89.84

Ethnicity

    

 Hispanic or Latino

37

2.51

94

3.93

 Not Hispanic or Latino

1417

96.2

2249

94.06

 Unknown/not reported ethnicity

19

1.29

48

2.01

Neighborhood income

    

  < $25,000

6

0.41

21

0.88

  ≥ $25,000

1409

95.66

2351

98.33

 Missing

58

3.94

19

0.79

Neighborhood education

    

  < 25% college

209

14.19

795

33.25

  ≥ 25% college

1206

81.87

1577

65.96

 Missing

58

3.94

19

0.79