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Table 6 Top 43 variables selected for classifying dementia from normal controls

From: Deep learning based low-cost high-accuracy diagnostic framework for dementia using comprehensive neuropsychological assessment profiles

Ranking

Variable description

1

Time to complete the Trail Making Test A

2

Retention index of Constructional Recall Testa

3

Age

4

Response bias index of the Word List Recognition Testb

5

Recency index of the Word List Memory Testc

6

Executive Clock Drawing Test (CLOX) 1 score

7

Consistency index of the Word List Memory Testd

8

Correct responses at the second quarter (15–30 s) in the Verbal Fluency Test

9

The number of repetitive recalls in trial 3 of the Word List Memory Test

10

Geriatric Depression Scale score

11

Cube recall score of the Constructional Recall Test

12

Clustering index of Verbal Fluency Test

13

Correct responses in the middle-frequency objects of the 15-item Boston Naming Test without cues

14

The number of correct recall in trial 2 of the Word List Memory Test

15

Digit Span Test Forward score

16

Years of education

17

Perceptual error index in the low-frequency objects of the 15-item Boston Naming Test

18

Ineffective switch index of the Verbal Fluency Test

19

Retention index of the Word List Recall Teste

20

Consistency index of the Word List Recall Testf

21

Primacy index of the Word List Memory Testg

22

Word List Recall Test score

23

Switch index of the Verbal Fluency Testh

24

The number of correct recall in trial 1 of the Word List Memory Test

25

Forward span of the Digit Span Test

26

Word List Recognition Test total score

27

Correct responses in the low-frequency objects of the 15-item Boston Naming Test with phonemic cues

28

Learning curve of the Word List Memory Testi

29

Digit Span Test Backward score

30

Correct responses at the last quarter (45–60 s) in the Verbal Fluency Test

31

Constructional Recognition Test score

32

Go-No-Go score of the Frontal Assessment Battery

33

The umber of correct recall in trial 3 of the Word List Memory Test

34

Correct responses in the high-frequency objects of the 15-item Boston Naming Test without cues

35

Correct responses at the first quarter (0–15 s) in the Verbal Fluency Test

36

’Do not know’ responses in the low-frequency objects of the 15-item Boston Naming Test

37

The number of intrusion errors in the Word List Recall Test

38

Intersecting rectangles recall score of the Constructional Recall Test

39

Recency index in trial 1 of the Word List Memory Test

40

Correct responses at the third quarter (30–45 s) in the Verbal Fluency Test

41

Backward span of the Digit Span Test

42

Diamond recall score of the Constructional Recall Test

43

Cube score of the Constructional Praxis Test

  1. a(Constructional recall test score /constructional praxis test) ×100
  2. b(False positive score −false negative score) /(false positive score+false negative score)
  3. c(The number of recalled words among the last 3 words of the Word List Memory Test /Word List Memory Test score) ×100
  4. dThe sum of the numbers of words consistently recalled in between trial 1, trial 2 and trial 3 of the Word List Memory Test
  5. e(Word List Recall Test total score/trial 3 score of Word List Memory Test) ×100
  6. f(The number of words consistently recalled in the World List Recall Test among the recalled words in the Word List Memory Test) × 100
  7. g(The number of recalled words among the first 3 words of the Word List Memory Test /Word List Memory Test score) ×100
  8. hThe number of switches between clusters during Verbal Fluency Test
  9. iThe number of recalled words in trial 3 of the Word List Memory Test - the number of recalled words in trial 1 of the Word List Memory Test