Gender and injuries predict stimulant medication use.

Area of Science:

• Pediatric Psychiatry
• Child Psychology
• Neurodevelopmental Disorders

Background:

• Stimulant medication is frequently prescribed for children diagnosed with attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder (ASD), and other psychiatric disorders (OPD).
• Predictors of stimulant prescription in these pediatric populations are not fully understood, particularly concerning early life factors.

Purpose of the Study:

• To investigate whether early childhood injuries and gender predict stimulant medication prescriptions.
• To examine these associations across three distinct pediatric diagnostic groups: ADHD, ASD, and OPD.

Main Methods:

• A population-based prospective study utilizing national registers.
• Inclusion of a large cohort of 69,719 children (ADHD: 11,553; ASD: 9,698; OPD: 48,468) with complete follow-up.
• Data collection on psychiatric diagnoses, injuries before age five, and stimulant prescriptions.

Main Results:

• Injuries sustained before age five significantly increased the likelihood of later stimulant treatment across all three groups (ADHD OR=1.09, ASD OR=1.19, OPD OR=1.24).
• Each prior injury independently raised the probability of stimulant treatment (3% for ADHD, 10% for ASD, 7% for OPD).
• Male gender was consistently associated with higher rates of stimulant prescription in all groups (ADHD OR=1.17, ASD OR=1.71, OPD OR=2.41).

Conclusions:

• This is the first prospective study to identify early life injury history as a predictor of stimulant treatment initiation in children with psychiatric disorders.
• The number of early life injuries prior to diagnosis is associated with stimulant treatment, potentially serving as a proxy for symptom severity.
• Male gender is a significant predictor for stimulant medication treatment in children across ADHD, ASD, and OPD diagnoses.