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Table 1 Sociodemographic characteristics

From: Plasma brain-derived neurotrophic factor (BDNF) in Egyptian children with attention deficit hyperactivity disorder

 

Cases

n = 60

Control

n = 30

Test value

p value

Gender

 Male

45 (75.0%)

20 (66.7%)

χ2 = 0.69

0.405(C)

 Female

15 (25.0%)

10 (33.3%)

Age

 Mean

8.18

8.37

t = 0.51

0.61(T)

 SD

1.61

1.79

Body mass index

 Mean

16.14

16.22

t = 0.36

0.717(T)

 SD

1.06

1.03

Father’s education

 Illiterate

3 (5.0%)

0 (0.0%)

3.46

0.482(F)

 Primary

3 (5.0%)

3 (10.0%)

 Preparatory

17 (28.3%)

11 (36.7%)

 Secondary or technical school

34 (56.7%)

16 (53.3%)

 University

3 (5.0)

0.00%

Mother’s education

 Illiterate

9 (15.0%)

5 (16.7%)

2.78

0.249(F)

 Secondary or technical school

46 (76.7%)

19 (63.3%)

 University

5 (8.3%)

6 (20.0%)

Socioeconomic class

 Very low

7 (11.7%)

3 (10.0%)

4.06

0.251(F)

 Low

13 (21.7%)

11 (36.7%)

 Moderate

31 (51.7%)

15 (50.0%)

 High

9 (15.0%)

1 (3.3%)

History of consanguinity

 Yes

10 (16.7%)

7 (23.3%)

χ2 = 0.58

0.446(C)

 No

50 (83.3%)

23 (76.7%)

FH of psychiatric illness

 Yes

22 (36.7%)

3 (10%)

χ2 = 7.09

0.008(C) *

 No

38 (63.3%)

27 (90%)

  1. (T)t test, (F) Fisher’s exact test, (C) chi-squared test, * statistically significant