Conduct disorder: diagnosis and treatment in primary care.

Conduct disorder is a common childhood psychiatric problem that has an increased incidence in adolescence. The primary diagnostic features of conduct disorder include aggression, theft, vandalism, violations of rules and/or lying. For a diagnosis, these behaviors must occur for at least a six-month period. Conduct disorder has a multifactorial etiology that includes biologic, psychosocial and familial factors. The differential diagnosis of conduct disorder includes oppositional defiant disorder, attention-deficit/hyperactivity disorder (ADHD), mood disorder and intermittent explosive disorder. Family physicians may provide brief, behaviorally focused parent counseling, pharmacotherapy and referral for more intensive family and individual psychotherapy.