Differences between prepubertal- versus adolescent- onset bipolar disorder in a Spanish clinical sample

Area of Science:

• Child and Adolescent Psychiatry
• Neurodevelopmental Disorders
• Mental Health Research

Background:

• Bipolar disorder (BD) diagnosis in children and adolescents is complex.
• Understanding early-onset BD is crucial for timely intervention.
• Clinical presentation can vary significantly based on age.

Purpose of the Study:

• To analyze clinical characteristics of pediatric bipolar disorder.
• To compare prepubertal versus adolescent onset of BD.
• To investigate diagnostic delays and comorbidities in early-onset BD.

Main Methods:

• Retrospective review of 43 patients diagnosed with BD.
• Categorization into prepubertal (before 13) and adolescent (13+) onset groups.
• Analysis of symptom presentation, age of onset, diagnosis, and comorbidities.

Main Results:

• Prepubertal onset BD (14 patients) had longer diagnostic delays (1.2 years) vs. adolescent onset (0.8 years).
• Prepubertal onset was associated with irritability, conduct problems, and ADHD comorbidity.
• Adolescent onset BD more frequently presented with psychotic symptoms.

Conclusions:

• Clinical features of pediatric bipolar disorder are distinct based on onset age.
• Early identification and tailored treatment are essential for prepubertal BD.
• Adolescent onset BD may require specific attention to psychotic symptom management.