Abstract/Details

Psychosocial variables as predictors of Roux -en -Y gastric bypass procedure (RYGBP) outcomes


2009 2009

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Abstract (summary)

Morbid obesity is a prevalent and costly problem. Although bariatric surgery usually provides a higher degree of weight loss for patients than do more conventional nonsurgical methods, failure may carry significant consequences. Research designed to ascertain psychosocial variables that predict bariatric outcome have not yielded consistent results. Thus, presurgical psychiatric screening methods remain inconsistent. The present study was designed to evaluate psychometric test scores on selected measures (MMPI-2 and OQ) as predictors of postoperative Roux-en-Y gastric bypass procedure (RYGBP) outcome as measured by percentage of excess weight loss (EWL%) 1 year after RYGBP. The psychological test scores of 270 RYGBP patients were used in a retrospective analysis. Patients who scored higher on the MMPI-SS Hypomania (Ma) and the MMPI-RC Aberrant Experiences (RC8) lost less EWL% 12 to 24 months after surgery than did patients who scored lower on the two measures. Outcome was best predicted by RC8 alone. The MMPI-RC may provide better predictive utility than the MMPI-SS or OQ subscales. Future research should further examine the predictive utility of the MMPI-RC for RYGBP outcome, as it may ultimately prove a more reliable bariatric screening tool than the MMPI-SS. The RC8 may be useful in assessing behavioral constructs that could negatively impact EWL%, such as poor judgment and poor adherence to postsurgical guidelines.

Indexing (details)


Subject
Medicine;
Clinical psychology
Classification
0564: Medicine
0622: Clinical psychology
Identifier / keyword
Health and environmental sciences; Psychology; Bariatric surgery; Gastric bypass; MMPI-2; Overeating Questionnaire; Psychosocial; Roux-en-Y gastric bypass procedure
Title
Psychosocial variables as predictors of Roux -en -Y gastric bypass procedure (RYGBP) outcomes
Author
Hutchinson, Stancil Joseph Lister
Number of pages
192
Publication year
2009
Degree date
2009
School code
1435
Source
DAI-B 70/06, Dissertation Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9781109212655
Advisor
Petersen, Suni
University/institution
Alliant International University, Fresno
University location
United States -- California
Degree
Psy.D.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
3362250
ProQuest document ID
305172656
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/305172656
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