Generalized Anxiety Disorder

Generalized anxiety disorder (GAD) in children and adolescents is characterized by excessive, hard-to-control worry about a range of everyday concerns, such as school performance, health, safety, and future events, accompanied by physical symptoms of tension. The worry is disproportionate to the actual circumstances, persists for months, and interferes with daily functioning. In youth it often presents with perfectionism, reassurance-seeking, and somatic complaints.

Definition

A disorder defined by excessive and difficult-to-control worry about multiple domains occurring more days than not for a sustained period (at least six months in current diagnostic systems), accompanied by symptoms such as restlessness, fatigue, difficulty concentrating, irritability, muscle tension, or sleep disturbance, and causing clinically significant distress or impairment.

Scope

This entry covers the clinical concept, characteristic worry and physical symptoms, developmental features, epidemiology, and the evidence base for treatment of GAD in young people. It is an educational reference and does not provide diagnostic thresholds for individual cases or treatment instructions.

Core questions

• How is pathological worry distinguished from ordinary childhood worry?
• What physical and cognitive symptoms accompany the worry in young people?
• How does GAD overlap with and differ from other anxiety disorders?
• What treatments have the strongest evidence in children and adolescents?

Key concepts

• Excessive, uncontrollable worry across multiple domains
• Intolerance of uncertainty
• Somatic tension symptoms
• Reassurance-seeking and avoidance
• Overlap with the historical category of overanxious disorder
• High comorbidity with other anxiety disorders and depression

Mechanisms

GAD is understood as a disorder of chronic, generalized apprehension in which worry functions to anticipate and avoid feared outcomes but becomes self-perpetuating. Cognitive accounts emphasize intolerance of uncertainty and beliefs about the usefulness or danger of worry, while physiological models point to sustained autonomic and muscle tension. In children, GAD overlaps substantially with what was formerly called overanxious disorder, and it frequently co-occurs with other anxiety disorders and with depression. Like other anxiety disorders, it reflects an interaction of temperamental vulnerability, environment, and learning.

Clinical relevance

GAD contributes to academic difficulty, social withdrawal, somatic complaints, and impaired quality of life in young people, and it raises the risk of later depressive disorders. This entry describes how the condition is conceptualized and studied for reference purposes; it is not a tool for self-diagnosis and does not direct individual care.

Epidemiology

Anxiety disorders as a group are the most common psychiatric conditions of youth, and GAD is among the more frequently diagnosed in older children and adolescents, with prevalence rising across adolescence. It shows high comorbidity with other anxiety disorders and with depression and tends to follow a chronic, fluctuating course when untreated.

Evidence & guidelines

The AACAP practice parameter for pediatric anxiety disorders (Connolly & Bernstein, 2007) covers GAD assessment and treatment, and the Child/Adolescent Anxiety Multimodal Study (Walkup et al., 2008) demonstrated efficacy of cognitive behavioral therapy, sertraline, and their combination across GAD, separation anxiety, and social anxiety. These are summarized for reference and are not treatment direction.

History

In earlier pediatric nosology, much of what is now diagnosed as GAD in children was captured by the category of overanxious disorder of childhood. Diagnostic revisions consolidated this presentation into GAD with developmentally adapted criteria, and large treatment trials in the 2000s clarified its responsiveness to cognitive behavioral therapy and serotonergic medication.

Seminal works

• tyrer-2006
• connolly-2007
• walkup-2008

Frequently asked questions

How is generalized anxiety disorder different from normal childhood worry?

In GAD the worry spans many areas, is difficult to control, persists for months, is out of proportion to actual circumstances, and causes distress or impairment, unlike the transient and situation-specific worries common in development.

Is generalized anxiety disorder in children the same as overanxious disorder?

Overanxious disorder of childhood was an earlier diagnostic label whose presentation is now largely captured by generalized anxiety disorder applied with developmentally adapted criteria.