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Table 4 Correlation of demographic and clinical data with performance in neuropsychological tests

From: Neuropsychological performance in patients with focal drug-resistant epilepsy and different factors that affect their performance

 

Age

Years of education

Age of onset

Duration of illness

Frequency of seizure

Number of ASMs

FSIQ Score

FSIQ Score

r value

0.07

0.46

0.13

-0.09

0.05

-0.33

 

P value

0.63

 < 0.001*

0.35

0.54

0.73

0.02*

 

Digit span

Forward

r value

− 0.2

0.4

− 0.08

− 0.11

0.13

− 0.13

0.49

P value

0.15

0.003*

0.58

0.42

0.37

0.34

 < 0.001*

Backward

r value

− 0.04

0.44

− 0.03

− 0.01

0.05

− 0.21

0.64

P value

0.78

 < 0.001*

0.83

0.95

0.73

0.13

 < 0.001*

Verbal memory Verbal PAT

r value

− 0.08

0.41

0.13

− 0.24

− 0.03

− 0.21

0.65

P value

0.57

0.003*

0.35

0.09

0.81

0.13

 < 0.001*

Visual memory

Learning trials

r value

− 0.11

0.31

0.12

− 0.25

0.02

− 0.1

0.47

P value

0.45

0.03*

0.39

0.08

0.9

0.46

 < 0.001*

Short delayed recall

r value

0.1

0.34

0.21

− 0.14

0.1

− 0.2

0.5

P value

0.49

0.01*

0.14

0.31

0.49

0.15

 < 0.001*

Long delayed recall

r value

0.08

0.26

0.23

− 0.19

0.03

− 0.31

0.46

P value

0.59

0.07

0.09

0.17

0.84

0.03*

 < 0.001*

Visual memory: BVRT

r value

− 0.12

0.38

0.06

− 0.19

0.04

− 0.18

0.59

P value

0.39

0.01*

0.69

0.18

0.76

0.2

 < 0.001*

Executive function/verbal fluency COWAT

Phonemic

r value

0.13

0.6

0.12

− 0.01

0.1

− 0.34

0.67

P value

0.37

 < 0.001*

0.4

0.92

0.5

0.01*

 < 0.001*

Categorical

r value

− 0.07

0.44

− 0.02

− 0.05

0.05

− 0.27

0.61

P value

0.64

0.001*

0.9

0.72

0.75

0.05

 < 0.001*

Executive function

TMT A2

r value

− 0.12

− 0.44

− 0.04

− 0.08

− 0.1

0.33

− 0.61

P value

0.39

 < 0.001*

0.79

0.59

0.5

0.02*

 < 0.001*

TMT− B2

r value

0.04

− 0.22

0.19

− 0.18

0.06

0.36

− 0.58

P value

0.78

0.12

0.17

0.2

0.67

0.01*

 < 0.001*

  1. ASMs anti-seizure medications, FSIQ Full-Scale Intelligence Quotient, PAT Paired Associate Test, BLT Brown Location Test, BVRT Benton Visual Retention Test, COWAT Controlled Oral Word Association Test, TMT Trail Making Test
  2. *P value < 0.05 is considered significantly different
  3. 1Scoring by Z-score calculated according to age group
  4. 2Included only patients who performed the test within cut-off time normally and those did it correctly but exceeded the cut-off time