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Table 8 Differences between patients according to number of hospitalizations: color trail making (CTMT), Stroop and five dots tests

From: The impacts of substance abuse and dependence on neuropsychological functions in a sample of patients from Saudi Arabia

 

Number of hospitalizations (n)

  

Tests used

1 (44)

mean ± SD

2 (41)

mean ± SD

3 (38)

mean ± SD

≥ 4 (31)

mean ± SD

F value

P value

CTMT Time 1 b

67.40 ± 15.80

68.96 ± 19.14

76.28 ± 21.12

99.59 ± 37.42

F(1,98) = 13.413

0.000

CTMT Color errors 1 b

0.50 ± 0.98

0.39 ± 0.86

0.68 ± 1.16

1.39 ± 1.48

F(4,50) = 5.457

0.001

CTMT Time 2 b

103.52 ± 23.34

114.82 ± 30.57

123.74 ± 29.48

150.55 ± 42.84

F(1,45) = 14.309

0.000

CTMT number errors 2b

0.32 ± 0.80

0.15 ± 0.57

0.45 ± 1.16

1.16 ± 1.77

F(4,48) = 5.465

0.001

CTMT Color errors 2 b

0.48 ± 1.11

0.68 ± 1.46

0.83 ± 1.15

1.35 ± 1.60

F(7,76) = 2.861

0.01

Stroop Time 1 b

10.40 ± 2.21

11.65 ± 1.90

12.08 ± 2.31

15.13 ± 6.06

F(1,265) = 12.662

0.001

Stroop Errors 1 b

0.07 ± 0.33

0.05 ± 0.22

0.08 ± 0.36

0.33 ± 0.83

F(1,77) = 2.706

0.05

Stroop Time 5 b

26.31 ± 7.87

29.42 ± 7.53

31.87 ± 8.04

40.49 ± 8.31

F(1,10) = 20.611

0.001

Stroop Errors 5 b

2.02 ± 2.22

2.87 ± 3.22

3.39 ± 2.54

3.86 ± 2.96

F(1,265) = 12.662

0.001

Total score 5 dots a

31.48 ± 7.73

26.37 ± 8.51

25.76 ± 7.26

23.90 ± 8.31

F(3,39) = 6.587

0.001

5 dots unique designs a

27.93 ± 7.81

23.68 ± 7.64

22.26 ± 7.09

20.71 ± 7.57

F(3,37) = 6.638

0.001

  1. n. number of patients
  2. a. Higher scores indicate better function.
  3. b. higher scores indicate poorer function
  4. CTMT: color trail making test