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Table 2 Relation between the scale of violence (modified overt aggression scale) and demographic data (n = 86)

From: Study of attention measured by event-related potential as a predictive factor of violence among patients with schizophrenia and substance use disorder

 

N

Modified overt aggression scale

Test of sig.

P

Min.–max.

Mean ± SD

Median

Age (years)

 18–< 20

6

3.0–30.0

19.0 ± 12.07

23.0

H = 1.799

0.773

 20–29

33

0.0–40.0

14.52 ± 12.90

11.0

 30–39

26

0.0–39.0

13.54 ± 10.74

9.50

 40–49

16

0.0–40.0

17.06 ± 14.21

12.50

 50–59

5

7.0–35.0

17.20 ± 10.87

14.0

Marital status

 Single

63

0.0–40.0

14.30 ± 12.65

9.0

U = 576.0

0.147

 Married

23

0.0–40.0

17.52 ± 10.85

17.0

Educational level

 High

5

6.0–37.0

22.20 ± 11.65

23.0

H = 2.273

0.321

 Moderate

30

0.0–35.0

15.50 ± 11.12

13.0

 Illiterate

51

0.0–40.0

14.27 ± 12.86

9.0

Work

 No

63

0.0–40.0

14.92 ± 12.71

10.0

U = 655.50

0.500

 Yes

23

0.0–37.0

15.83 ± 10.97

13.0

  1. U Mann Whitney test, H H for Kruskal Wallis test, P P value for comparing association between modified overt aggression scale and demographic data
  2. *Statistically significant at P ≤ 0.05