Symptom Profiles Influence Accurate Identification of Avoidant/Restrictive Food Intake Disorder (ARFID)

Area of Science:

• Psychiatry
• Clinical Psychology
• Pediatric Medicine

Background:

• Avoidant/restrictive food intake disorder (ARFID) diagnosis in DSM-5 faces scrutiny due to heterogeneity.
• Recent research focuses on three ARFID motivating factors: lack of interest, sensory sensitivity, and fear of aversive consequences.
• Limited data exists on how these ARFID symptom profiles impact clinician diagnostic accuracy.

Purpose of the Study:

• To assess clinician diagnostic accuracy for ARFID based on its three primary motivating factors.
• To examine variations in diagnostic accuracy across different ARFID presentations.
• To identify clinician characteristics associated with ARFID diagnostic accuracy and confidence.

Main Methods:

• Licensed mental health providers diagnosed ARFID using standardized vignettes.
• Diagnostic accuracy was compared across ARFID presentations (sensory sensitivity, lack of interest, fear of consequences) and a control (major depression).
• Clinician characteristics, including specialization and experience, were analyzed in relation to accuracy and confidence.

Main Results:

• Overall ARFID diagnostic accuracy was 68.9%, compared to 95.1% for major depression.
• Accuracy varied significantly by ARFID presentation: sensory sensitivity (94.0%), lack of interest (72.7%), and fear of consequences (46%).
• Eating disorder specialists showed higher accuracy and confidence; prior ARFID treatment experience did not impact performance.

Conclusions:

• Accurate diagnosis of ARFID presents challenges due to its diverse symptom profiles.
• Enhanced clinician training on recognizing varied ARFID presentations is essential.
• Improving diagnostic accuracy can lead to better assessment and treatment outcomes for ARFID.