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Table 1 Proposed criteria for “severe and enduring anorexia nervosa”

From: Classification challenges in the field of eating disorders: can severe and enduring anorexia nervosa be better defined?

(1) a persistent state of dietary restriction, underweight, and overvaluation of weight/shape with
functional impairment
(2) duration of > 3 years of anorexia nervosa; and
(3) exposure to at least two evidence based treatments appropriately delivered together with a
diagnostic assessment and formulation that incorporates an assessment of the person’s eating
disorder health literacy and stage of change