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Title page for ETD etd-03242012-151106

Type of Document Master's Thesis
Author Arrindell, Adrienne Hadley
URN etd-03242012-151106
Title Latent Classes of Women Undergoing Inpatient Eating Disorder Treatment
Degree Master of Arts
Department Psychology
Advisory Committee
Advisor Name Title
David G. Schlundt, Ph.D. Committee Chair
Sonya Sterba, Ph.D. Committee Member
  • anorexia
Date of Defense 2012-03-20
Availability unrestricted
This study accounted for patterns of eating disorder (ED) psychopathology, bingeing, and vomiting using latent ED classes. A latent profile analysis was conducted using Eating Disorder Inventory scores of 2,247 females undergoing inpatient ED treatment at a specialized facility as indicators of latent profile (or class) membership. The model then incorporated DSM-IV ED diagnoses, ED correlates and psychiatric comorbidities, including obsessive-compulsive disorder (OCD) and substance abuse, as predictors of latent class membership. Information criteria and likelihood ratio tests indicated a four-class solution: (1) restricting anorexia nervosa, characterized by low BMI and OCD; (2) atypical anorexia characterized by non-eating disorder levels of drive for thinness and low comorbidity; (3) bulimia characterized by OCD; and (4) bulimia characterized by high ED and comorbid psychopathology and longer illness duration. Substance abuse did not predict class membership. Findings support a broad distinction between restricting and bulimic syndromes and emphasize the relatively large prevalence of an atypical anorexia class.
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