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Table 2 Point prevalence of mental disorders in 12–18-year-old students (n = 7493)

From: Prevalence of mental disorders among middle school students in Shaoxing, China

DSM-IV Disorders

N

%

95% CI (%)

Any disorders

930

12.4

11.7–13.2

Major depressive disorder

670

8.9

8.3–9.6

Anxiety disorder

360

4.8

4.3–5.3

Obsessive compulsive disorder

680

9.1

8.4–9.7

Sleep disorder

140

1.9

1.6–2.2

Attention–deficit hyperactivity disorder

187

2.5

2.1–2.8

Oppositional defiant disorder

142

1.9

1.6–2.2

Tic disorder

67

0.9

0.7–1.1

Substance use disorder

60

0.8

0.6–1.0

Mania or hypomania

37

0.5

0.3–0.7

Social phobia

97

1.3

1.0–1.6

Post-traumatic stress disorder

15

0.2

0.1–0.3

Bulimia nervosa

60

0.8

0.6–1.0

Anorexia nervosa

15

0.2

0.1–0.3

Psychotic disorder

6

 < 0.1

0–0.1

  1. *p < 0.05; **p < 0.01