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Table 4 Group differences in cognitive test performance

From: Subjective cognitive complaints in patients with stress-related exhaustion disorder: a cross sectional study

Variable

Patients

Control group

F (df)

p

M

SD

M

SD

Global cognitive composite

− 0.32

0.99

0.00

1.00

3.85 (1,159)

.05

Executive functions

− 0.17

1.10

0.00

1.00

0.98 (1,159)

.32

 Letter memory running span

2.42

1.68

1.71

1.49

7.18 (1,159)

.01

 n-back

21.18

7.32

23.93

6.63

5.58 (1,159)

.02

 Stroop inhibition costa

30.21

11.75

26.88

8.63

3.58 (1,159)

.06

 TMT shift costa

48.93

25.00

45.14

25.52

0.84 (1,159)

.36

Working memory

− 0.28

0.98

0.00

1.00

2.93 (1,159)

.09

 Digit span forwards

6.99

2.06

6.64

1.74

1.21 (1,159)

.27

 Digit span backwards

6.45

2.09

7.00

2.06

2.62 (1,159)

.11

 Letter-number sequencing

9.81

2.56

11.69

2.92

18.20 (1,159)

.00

Episodic memory

− 0.17

1.04

0.00

1.00

1.00 (1,159)

.32

 Recall of concrete nouns

51.08

9.71

52.66

9.37

1.00 (1,159)

.32

Perceptual speed

− 0.29

1.01

0.00

1.00

3.08 (1,159)

.08

 Digit symbol

52.85

10.23

55.79

10.15

3.08 (1,159)

.08

Reasoning ability

− 0.38

0.95

0.00

1.00

5.74 (1,159)

.02

 Raven’s matrices

6.92

2.86

8.07

3.01

5.74 (1,159)

.02

  1. Left aligned variables show composited domains as z scores. Indented variables show the individual tests within the composite. Significant group differences are italicized
  2. aHigher scores indicate worse performance