Despite decades of eating disorder (ED) research, studies of factors involved in long-term EDs are still lacking. This longitudinal study investigated the role of maintenance variables in a transdiagnostic adolescent ED sample. Participants included 275 adolescents who underwent specialized ED treatment. Hierarchical linear modeling confirmed a significant growth pattern of maintenance factors, wherein there was initial increase, then a decline during treatment, followed by a slight rebound post-treatment. Refractory status did not predict the variability in maintenance curves, suggesting that although this growth pattern existed, requiring a second treatment encounter did not explain the differences found in these patterns.

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Keywords eating disorders, growth trajectories, maintenance factors, refractory, youth
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Journal Psychotherapy Research
Obeid, N. (Nicole), Henderson, K, Tasca, G.A. (Giorgio A.), Lyons, J.S. (John S.), Norris, M.L. (Mark L.), & Spettigue, W. (Wendy). (2013). Growth trajectories of maintenance variables related to refractory eating disorders in youth. Psychotherapy Research, 23(3), 265–276. doi:10.1080/10503307.2013.775529