title: Determinants of Weight Loss following Laparoscopic Sleeve Gastrectomy: The Role of Psychological Burden, Coping Style, and Motivation to Undergo Surgery.
abstract: BACKGROUND
  The amount of excess weight loss (%EWL) among obese patients after bariatric surgery varies greatly. However, reliable predictors have not been established yet. The present study evaluated the preoperative psychological burden, coping style, and motivation to lose weight as factors determining postoperative treatment success.
  
  
  METHODS
  The sample included 64 morbidly obese patients with a preoperative BMI of 51 ± 8 kg/m(2) who had undergone laparoscopic sleeve gastrectomy (LSG). Well-established questionnaires were applied before surgery to assess the psychological burden in terms of "perceived stress" (PSQ-20), "depression" (PHQ-9), "anxiety" (GAD-7), and "mental impairment" (ISR) as well as coping style (Brief COPE) and motivation to lose weight. %EWL as an indicator for treatment success was assessed on average 20 months after surgery.
  
  
  RESULTS
  Based on the %EWL distribution, patients were classified into three %EWL groups: low (14-39%), moderate (40-59%), and high (60-115%). LSG patients with high %EWL reported significantly more "active coping" behavior prior to surgery than patients with moderate and low %EWL. Patients' preoperative psychological burden and motivation to lose weight were not associated with %EWL.
  
  
  CONCLUSIONS
  An "active coping" style might be of predictive value for better weight loss outcomes in patients following LSG intervention.
authors.affiliation: Charité Center for Internal Medicine and Dermatology, Division for General Internal and Psychosomatic Medicine, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
authors.forename: Andrea
authors.initials: A
authors.lastname: Figura
authors.affiliation: Charité Center for Internal Medicine and Dermatology, Division for General Internal and Psychosomatic Medicine, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
authors.forename: Anne
authors.initials: A
authors.lastname: Ahnis
authors.affiliation: Charité Center for Internal Medicine and Dermatology, Division for General Internal and Psychosomatic Medicine, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
authors.forename: Andreas
authors.initials: A
authors.lastname: Stengel
authors.affiliation: Charité Center for Internal Medicine and Dermatology, Division for General Internal and Psychosomatic Medicine, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
authors.forename: Tobias
authors.initials: T
authors.lastname: Hofmann
authors.affiliation: Charité Center for Internal Medicine and Dermatology, Division for General Internal and Psychosomatic Medicine, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany ; Charité Center for Internal Medicine with Gastroenterology and Nephrology, Division for Endocrinology, Diabetes and Nutrition, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
authors.forename: Ulf
authors.initials: U
authors.lastname: Elbelt
authors.affiliation: Charité Center for Obesity and Metabolic Surgery, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
authors.forename: Jürgen
authors.initials: J
authors.lastname: Ordemann
authors.affiliation: Charité Center for Internal Medicine and Dermatology, Division for General Internal and Psychosomatic Medicine, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
authors.forename: Matthias
authors.initials: M
authors.lastname: Rose
mesh_terms: D000223:Adaptation, Psychological; D000328:Adult; D001007:Anxiety / Q000453:epidemiology*; D003863:Depression / Q000453:epidemiology*; D005260:Female; D005500:Follow-Up Studies; D005743:Gastrectomy / Q000523:psychology; D005858:Germany / Q000453:epidemiology; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D010535:Laparoscopy / Q000523:psychology; D008297:Male; D008875:Middle Aged; D009042:Motivation; D009767:Obesity, Morbid / Q000453:epidemiology / Q000523:psychology* / Q000601:surgery; D057234:Preoperative Period; D016896:Treatment Outcome; D015431:Weight Loss