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Obesity Surgery
Published in: Obesity Surgery 10/2014

01-10-2014 | Original Contributions

The Impact of Temperament and Character Inventory Personality Traits on Long-Term Outcome of Roux-en-Y Gastric Bypass

Authors: Pedro Caldana Gordon, José Afonso Sallet, Paulo Clemente Sallet

Published in: Obesity Surgery | Issue 10/2014

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Abstract

Background

A significant proportion of patients who undergo bariatric surgery fail to achieve enduring weight loss. Previous studies suggest that psychosocial variables affect postoperative outcome, although this subject is still considered unclear. The purpose of this study is to further investigate the impact of psychosocial variables on Roux-en-Y gastric bypass (RYGB) outcomes over long-term follow-up.

Materials and Methods

Individuals eligible for bariatric surgery were evaluated using validated psychopathological scales and the Temperament and Character Inventory in a specialized clinic for bariatric treatment. Adult patients who had RYGB were selected for the study. Percent of excess weight loss (%EWL) was measured after surgery at 6 months, 1 year, 2 years, and on the last clinical observation.

Results

This study included 333 subjects who had RYGB. Before surgery, mean age was 35.4 years (±9.5) and mean BMI was 43.3 kg/m2 (±4.8). Higher baseline age and BMI were associated with lower %EWL across endpoints, although this association diminished over time. Follow up at 2 years and on the last clinical observation demonstrated that lower scores on the persistence personality variable and lower body dissatisfaction before surgery predicted lower %EWL.

Conclusions

Psychosocial variables and personality traits assessed during preoperative evaluation significantly predicted weight loss after bariatric surgery. Greater impact was observed in long-term follow-up at 2 years. These findings provide guidance in identifying patients at risk for worse outcomes and designing interventions to improve long-term weight loss.
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Metadata
Title
The Impact of Temperament and Character Inventory Personality Traits on Long-Term Outcome of Roux-en-Y Gastric Bypass
Authors
Pedro Caldana Gordon
José Afonso Sallet
Paulo Clemente Sallet
Publication date
01-10-2014
Publisher
Springer US
Published in
Obesity Surgery / Issue 10/2014
Print ISSN: 0960-8923
Electronic ISSN: 1708-0428
DOI
https://doi.org/10.1007/s11695-014-1229-7

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