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Conduct Disorder How frequent is conduct disorder?

How frequent is conduct disorder?

The prevalence of conduct disorders in the general population is estimated to be 1,5 - 3,4% (Steiner 1997). An increase in prevalence has been documented in the last years, but it remains unclear if this is related to improved recognition or varying definitions of conduct disorder. The diagnosis of conduct disorder is more frequent in boys with ratios ranging from 10:1 to 2:1, but the “covert” symptoms in girls (compared with more overt aggressive behaviors in males with conduct disorder) have been incriminated in possible under-diagnosis in this population. Peak age at onset is late childhood.