Exploring ADHD through the Lens of temperament: The TEMPS-A connection

Area of Science:

• Neuroscience
• Psychiatry
• Genetics

Background:

• Temperament research is growing in neurodevelopmental disorders like ADHD.
• Understanding affective temperament traits in ADHD is crucial for diagnosis and treatment.
• This study investigates ADHD and temperament in a Lebanese clinical sample.

Purpose of the Study:

• To examine the association between Attention-Deficit/Hyperactivity Disorder (ADHD) and affective temperament traits.
• To utilize the Temperament Scale of Memphis, Pisa, Paris, and San Diego (TEMPS-A) for trait assessment.
• To explore these relationships in a clinical outpatient setting in Beirut, Lebanon.

Main Methods:

• A cross-sectional study of 2564 psychiatric outpatients (≥15 years old).
• ADHD diagnosis confirmed via DSM-5 criteria through clinical assessment.
• Statistical analysis included descriptive statistics and multivariate logistic regression, comparing trait scores to Lebanese norms.

Main Results:

• Irritable (IT) temperament traits significantly increased the risk for ADHD (OR = 2.73).
• Depressive temperament traits (DT) showed a protective effect against ADHD (OR = 0.38).
• Cyclothymic (CT) and hyperthymic (HT) traits were associated in bivariate analyses but not after adjustments.

Conclusions:

• Temperament traits have a complex relationship with ADHD.
• Irritable temperament is a risk factor, while depressive temperament may be protective.
• Further research on temperament traits is recommended for ADHD diagnosis and therapy.