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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