ABSTRACT: BackgroundResearchers have traditionally relied upon various presurgical biopsychosocial measures to predict weight loss success following
bariatric surgery. The present study proposed a diagnostic grouping system to predict postsurgical outcome. It was hypothesized
that psychosocial and Minnesota Multiphasic Personality Inventory (MMPI)/Millon Clinical Multiaxial Inventory (MCMI) psychometric
variables could be used to identify gastric bypass surgery candidates requiring additional preoperative and postoperative
MethodsOf 143 candidates for surgical treatment of morbid obesity, 120 women and 23 men underwent psychological evaluation prior
to approval for gastric bypass. Each was placed into one of four diagnostic groups based upon results of personality measures
and a preoperative semistructured interview.
Results and ConclusionResults support the K scale of the MMPI-2 as a significant predictor of postsurgical outcome; MCMI scores on the schizoid,
schizotypal, and compulsive scales appeared to be better overall predictors of outcome.
KeywordsGastric bypass-Personality-MMPI-MCMI-Bariatric surgery-Psychosocial
Obesity Surgery 04/2012; 20(10):1361-1371. · 3.29 Impact Factor