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Table 3 Association of gross physical damage of nail by the psychiatric disorder

From: Association of nail biting and psychiatric disorders in children and their parents in a psychiatrically referred sample of children

Disorder

 

Gross physical damage (%)

Significance

Attention deficit hyperactivity disorder

With (n = 43)

37.2

χ2 = 0.1, df = 1, p = 0.4

 

Without (n = 14)

42.9

 

Oppositional defiant disorder

With(n = 21)

47.6

χ2 = 1.1, df = 1, p = 0.2

 

Without (n = 36)

33.3

 

Conduct disorder

With(n = 3)

66.7

-

 

Without (n = 54)

37.0

 

Tic disorder

With(n = 8)

62.5

χ2 = 0.2, df = 1, p = 0.1

 

Without (n = 49)

34.7

 

Major depressive disorder

With(n = 3)

0.0

-

 

Without (n = 54)

40.7

 

Separation anxiety disorder

With(n = 10)

30

χ2 = 0.7, df = 1, p = 0.4

 

Without (n = 47)

40.4

 

Mental retardation

With(n = 5)

40

-

 

Without (n = 52)

38.5

 

Obsessive compulsive disorder

With(n = 7)

57.1

χ2 = 0.4, df = 1, p = 0.2

 

Without (n = 50)

36.0

 

Enuresis

With(n = 8)

50

χ2 = 0.6, df = 1, p = 0.3

 

Without (n = 49)

36.7

 
  1. *Fisher's exact test