Identifying the behavioural phenotype in Fetal Alcohol Spectrum Disorder: sensitivity, specificity and screening...

Area of Science:

• Neurodevelopmental Disorders
• Behavioral Psychology
• Pediatric Medicine

Background:

• Fetal Alcohol Spectrum Disorder (FASD) diagnosis is challenging due to absent facial features and frequent comorbidity with Attention Deficit Hyperactivity Disorder (ADHD).
• Limited access to psychological testing in remote areas necessitates alternative diagnostic methods.
• Misdiagnosis of FASD can lead to inappropriate treatment for affected children.

Purpose of the Study:

• To identify a distinct behavioral phenotype in children with FASD.
• To differentiate children with FASD from typically developing children and those with ADHD.
• To develop a screening tool for FASD diagnosis based on behavioral characteristics.

Main Methods:

• Utilized the Child Behavior Checklist (CBCL) completed by parents/caregivers.
• Analyzed data from 30 children with FASD, 30 with ADHD, and 30 typically developing controls.
• Employed stepwise discriminant function analysis and Receiver Operating Characteristics (ROC) curve analyses to identify key behavioral indicators.

Main Results:

• Seven behavioral items (hyperactivity, inattention, lying, lack of guilt, disobedience) significantly differentiated FASD from controls (86% sensitivity, 82% specificity).
• Two combinations of items differentiated FASD from ADHD with high sensitivity and specificity.
• A potential FASD screening tool was constructed using these identified behavioral markers.

Conclusions:

• Behavioral characteristics can effectively differentiate children with FASD from other groups.
• An empirically derived screening tool for FASD can be developed for use in remote areas.
• This approach can expedite diagnosis and intervention for children lacking access to formal assessments.