Laura Aylward1, Christa Lilly2, Lawrence Tabone3, Nova Szoka3, Salim Abunnaja3, Stephanie Cox4. 1. Department of Behavioral Medicine and Psychiatry, West Virginia University School of Medicine, Morgantown, West Virginia. Electronic address: laura.aylward@hsc.wvu.edu. 2. Department of Epidemiology and Biostatistics, West Virginia University School of Medicine, Morgantown, West Virginia. 3. Department of Behavioral Medicine and Psychiatry, West Virginia University School of Medicine, Morgantown, West Virginia; Department of Surgery, West Virginia University School of Medicine, Morgantown, West Virginia. 4. Department of Behavioral Medicine and Psychiatry, West Virginia University School of Medicine, Morgantown, West Virginia.
Abstract
BACKGROUND: Though psychosocial factors are routinely examined in presurgical psychological evaluations, the predictive value of some psychosocial factors on postsurgical weight loss is still relatively unknown. Additional research examining the predictive value of psychological constructs preoperatively and long-term weight outcomes is needed to enhance the clinical utility of the presurgical psychological evaluations. OBJECTIVE: This study aimed to examine psychosocial factors as predictors of weight outcomes 30 months after bariatric surgery. SETTING: University hospital in the Appalachian region of United States. METHODS: Participants included 196 adults who underwent bariatric surgery. Psychosocial data were collected as part of a routine psychological evaluation prior to bariatric surgery. Objective weight was obtained through patients' medical records at 12, 24, and 30 months after surgery. RESULTS: Linear mixed models was used to examine presurgical psychosocial factors predicting postsurgical weight loss (n at 12 months = 153, n at 24 months = 130, n at 30 months = 92). Anxiety had a significant interaction effect with time (estimate = -.01, P = .013), indicating that higher anxiety was associated with less weight loss over time. Those with severe anxiety before surgery lost the most weight 12 months after surgery but also regained the most weight 30 months after surgery. Other predictors were not statistically significant. CONCLUSION: Anxiety assessed prior to surgery predicted reduced weight loss 30 months after bariatric surgery, after controlling for surgery type, baseline weight, sex, and age. Results highlight the importance of evaluation and treatment of anxiety in presurgical bariatric candidates.
BACKGROUND: Though psychosocial factors are routinely examined in presurgical psychological evaluations, the predictive value of some psychosocial factors on postsurgical weight loss is still relatively unknown. Additional research examining the predictive value of psychological constructs preoperatively and long-term weight outcomes is needed to enhance the clinical utility of the presurgical psychological evaluations. OBJECTIVE: This study aimed to examine psychosocial factors as predictors of weight outcomes 30 months after bariatric surgery. SETTING: University hospital in the Appalachian region of United States. METHODS: Participants included 196 adults who underwent bariatric surgery. Psychosocial data were collected as part of a routine psychological evaluation prior to bariatric surgery. Objective weight was obtained through patients' medical records at 12, 24, and 30 months after surgery. RESULTS: Linear mixed models was used to examine presurgical psychosocial factors predicting postsurgical weight loss (n at 12 months = 153, n at 24 months = 130, n at 30 months = 92). Anxiety had a significant interaction effect with time (estimate = -.01, P = .013), indicating that higher anxiety was associated with less weight loss over time. Those with severe anxiety before surgery lost the most weight 12 months after surgery but also regained the most weight 30 months after surgery. Other predictors were not statistically significant. CONCLUSION: Anxiety assessed prior to surgery predicted reduced weight loss 30 months after bariatric surgery, after controlling for surgery type, baseline weight, sex, and age. Results highlight the importance of evaluation and treatment of anxiety in presurgical bariatric candidates.
Authors: Tanja Legenbauer; Martina De Zwaan; Andrea Benecke; Barbara Muhlhans; Frank Petrak; Stephan Herpertz Journal: Obes Facts Date: 2009-08-17 Impact factor: 3.942