Enduring value of perfectionism and maturity fears for predicting eating disorder maintenance over 10-, 20-, and 30-year follow-up.

Both duration of follow-up and type of pathology impact the predictive value of psychological factors and have important implications for understanding illness maintenance. Findings support the utility of targeting Perfectionism for restrictive symptoms. Developing interventions focused on Maturity Fears may provide a novel approach to reducing both restrictive and bulimic symptoms.