The Bariatric Interprofessional Psychosocial Assessment of Suitability Scale predicts binge eating, quality of life and weight regain following bariatric surgery

Cross-cultural validation and Spanish translation of the Boston Interview to evaluate severely obese patients seeking metabolic/bariatric surgery

INTRODUCTION

obesity is a global health problem. Metabolic/Bariatric surgery (MBS) has proven to be one of the most effective methods for treating the most severe forms. However, a thorough evaluation and preparation of people seeking MBS is necessary. In Spain, there are no standardized interviews to carry out the psychosocial assessment of people seeking MBS. The Boston Interview for MBS (BIBS) is a recognized and flexible tool to evaluate the psychosocial factors.

OBJECTIVE

to present the process of translation into Spanish and cross-cultural adaptation of the BIBS.

MATERIALS AND METHODS

the reverse translation procedure was followed. To validate the translation, a multidisciplinary group of experts was formed. They were asked to rate the clarity of wording and cultural adaptation of the translation items. In addition, the translated interview was used to evaluate 173 patients seeking MBS who rated their satisfaction with the interview experience.

RESULTS

the evaluation of the translation by a group of experts was favorable (global mode and median were 3-excellent, IQR of 1). The overall percentage agreement of the adequacy of "cultural adaptation" of the text was 85.8 % (95 % CI, 0.784, 0.932) and of the "clarity of wording" was 84.7 % (95 % CI, 0.7644; 0.9286). Furthermore, it was well accepted by the majority of the patients interviewed (p(50) 10 out of 10).

CONCLUSIONS

the Spanish translation of the BIBS is available for the assessment of Spanish-speaking people seeking MBS. It was rated as having good fidelity to the original English version, and was deemed highly satisfactory by patients.

Weight Loss After Weight-Loss Surgery: The Mediating Role of Dichotomous Thinking

PURPOSE

Overly rigid forms of dietary restraint are associated with poorer weight loss outcomes. Dichotomous ("all or nothing") thinking has been shown to mediate this relationship in non-clinical participants, but this finding has yet to be replicated in clinical samples of individuals who have had weight-loss surgery.

MATERIALS AND METHODS

A cross-sectional design was used, adopting quantitative questionnaires with 129 individuals who had previously underwent bariatric surgery at least 12 months prior to participation. Bootstrapped mediation analysis was used to establish the mediating role of dichotomous thinking.

RESULTS

Eating-specific dichotomous thinking was shown to fully mediate the relationship between dietary restraint and post-surgical weight loss. In contrast, no mediation effect was found for generalised dichotomous thinking.

CONCLUSION

Dichotomous thinking specifically about food/eating may play a central role in weight loss maintenance after weight-loss surgery. Pre-surgical assessment of dichotomous thinking, and provision of psychological therapy to think more flexibly about food, is suggested.

Examination of the Reliability and Validity of the Minnesota Multiphasic Personality Inventory-3 (MMPI-3) in a Preoperative Bariatric Surgery Sample

Presurgical psychological assessment of bariatric surgery candidates aims to identify psychosocial risk factors and provide treatment recommendations to facilitate optimal outcomes. Such assessment typically includes psychometric testing and a clinical interview. The Minnesota Multiphasic Personality Inventory (MMPI) has been commonly used as a broadband measure to assess a number of psychosocial domains in bariatric clinics. The newest version of the MMPI, the MMPI-3, was recently released. This study sought to (1) establish whether the MMPI-3 is comparable to the MMPI-2-RF in a sample of patients seeking bariatric surgery, (2) report reliability data for all MMPI-3 scale scores in this sample, and (3) explore associations between commonly used self-report symptom measures and substantive scales of the MMPI-3 to ascertain convergent and discriminant validity patterns. Six hundred and thirty-five presurgical patients completed the MMPI-3 in addition to the Patient Health Questionnaire-9 (PHQ-9), General Anxiety Disorder-7 (GAD-7), Alcohol Use Disorders Identification Test-Consumption (AUDIT-C), and Eating Disorder Examination-Questionnaire (EDE-Q). The majority (79.1%) of the sample was female, 65.5% was white, and 26.6% was Black. Scores on most of the MMPI-3 Emotional/Internalizing Dysfunction scales were meaningfully associated with the PHQ-9, GAD-7, and most EDE-Q subscales (except for Restraint). Meaningful discriminant patterns were observed as well. We conclude that the substantive scales of the MMPI-3 are reliable, comparable to their MMPI-2-RF counterparts, and evidence good convergent validity with extra-test measures assessing depression, anxiety, alcohol use, and eating disorder psychopathology in a preoperative bariatric sample.