title: Psychological variables impacting weight gain rapidity in adolescents hospitalized for eating disorders.
abstract: OBJECTIVE
  This prospective study examined whether psychological variables related to the transdiagnostic theory of eating disorders measured at admission predicted length of time to reach 85 per cent of ideal body weight (IBW) among underweight adolescents hospitalized for an eating disorder.
  
  
  METHODS
  Thirty-three girls (aged 12-17) weighing below 85 per cent of IBW, admitted to an inpatient and/or partial hospitalization eating disorder programme completed self-report measures at admission. Cox regression tested whether scores on admission measures predicted time to reach 85 per cent of IBW.
  
  
  RESULTS
  After controlling for IBW at admission, higher self-esteem and lower perfectionism predicted shorter time to reach 85 per cent of IBW, with emotion regulation as a marginally significant predictor.
  
  
  CONCLUSIONS
  Self-esteem and perfectionism may be predictors of responsiveness to weight-gain efforts during hospitalization. Further studies are necessary to determine whether these variables might be appropriate targets for intervention to promote weight gain in underweight girls with eating disorders.
authors.affiliation: University of Texas Southwestern Medical Center at Dallas, USA.
authors.forename: Renee
authors.initials: R
authors.lastname: Phillips
authors.forename: Sunita M
authors.initials: SM
authors.lastname: Stewart
authors.forename: Katherine
authors.initials: K
authors.lastname: Presnell
authors.forename: Alexander
authors.initials: A
authors.lastname: Simmons
authors.forename: Betsy D
authors.initials: BD
authors.lastname: Kennard
authors.forename: Deanna
authors.initials: D
authors.lastname: Liss
authors.forename: Stephanie
authors.initials: S
authors.lastname: Setliff
mesh_terms: D000293:Adolescent; D002648:Child; D001068:Feeding and Eating Disorders / Q000175:diagnosis / Q000523:psychology* / Q000628:therapy; D005260:Female; D006801:Humans; D007297:Inpatients / Q000523:psychology*; D007902:Length of Stay; D010555:Personality Inventory; D011237:Predictive Value of Tests; D016016:Proportional Hazards Models; D011446:Prospective Studies; D011569:Psychiatric Status Rating Scales; D012649:Self Concept; D011795:Surveys and Questionnaires; D015430:Weight Gain