Oppositional Defiant Disorder

Definition

Oppositional defiant disorder (ODD) is a childhood mental disorder characterized by a pattern of angry, antagonistic, hostile, negative, irritable, and/or vindictive behavior lasting at least six months and occurring more frequently than is typically observed for the child's age and developmental stage. Children diagnosed with ODD do not meet the clinical diagnostic criteria for conduct disorder.

Description

Oppositional defiant disorder (ODD), a relatively new clinical classification, involves an ongoing pattern of antagonistic, defiant, and hostile behavior toward parents and other authority figures. Children and adolescents with ODD often have frequent temper tantrums, blame others for their misbehavior, argue excessively with adults, actively refuse to comply with adult rules and requests, deliberately defy adults and attempt to annoy or upset them, and are easily annoyed by others.

Demographics

Before puberty, ODD is more common in boys than girls; however, after puberty ODD occurrence rates are about equal in boys and girls. The disorder typically begins by the age of eight. According to the American Academy of Child and Adolescent Psychiatry, approximately 5 to 15 percent of all school-aged children have ODD.

Causes and symptoms

Although the specific causes of ODD are unknown, genetics and environment are thought to play a role in its development. As of 2004 several theories about the causes of oppositional defiant disorder are being investigated. ODD may be related to the following:

  • the child's temperament and the family's response to that temperament
  • an inherited predisposition to the disorder in certain families
  • a neurological cause, such as a head injury
  • a chemical imbalance in the brain (especially with the brain chemical serotonin)

ODD appears to be more common in families in which at least one parent has a history of a mood disorder, conduct disorder, attention deficit hyperactivity disorder (ADHD), antisocial personality disorder, or a substance abuse-related disorder. Children with one parent who is alcoholic or who has been in trouble with the law are almost three times more likely to have ODD. Additionally, some studies suggest that mothers with a depressive disorder are more likely to have children that develop ODD. ODD can also occur in conjunction with other conditions such as ADHD, learning disabilities, anxiety disorders, and mood disorders. About 50 percent to 65 percent of children with ADHD also have ODD.

Symptoms of ODD include a pattern of negative, hostile, and defiant behavior lasting at least six months. During this time four or more of the following must be present for a child to be diagnosed with ODD:

  • often loses his/her temper
  • often argues with adults
  • often actively defies or refuses to comply with adults' requests or rules
  • often deliberately annoys people
  • often blames others for his/her mistakes or misbehavior
  • is often touchy or easily annoyed by others
  • is often angry and resentful
  • is often spiteful or vindictive
  • misbehaves frequently
  • swears or uses obscene language
  • has a low opinion of him/herself

Additional problems may be present, including the following:

  • learning problems
  • a depressed mood
  • hyperactivity (although ADHD must be ruled out)
  • substance abuse or dependence
  • dramatic and erratic behavior

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