Prospective 2-Year Course and Predictors of Outcome in Avoidant/Restrictive Food Intake Disorder

To evaluate the 2-year course and outcomes of full and subthreshold avoidant/restrictive food intake disorder (ARFID) in youth ages 9-23 at baseline using a prospective longitudinal design to characterize the remission and persistence of ARFID, evaluate diagnostic crossover, and identify predictors of outcome. We hypothesized that greater severity in each ARFID profile - sensory sensitivity, fear of aversive consequences, and lack of interest - would predict greater likelihood of illness persistence, controlling for age, sex, BMI percentile, ARFID treatment status, and baseline diagnosis.