Personality characteristics and bariatric surgery outcomes: a systematic review

Bordignon, Suelen; Aparício, Mayra Juliana Galvis; Bertoletti, Juliana; Trentini, Clarissa Marceli

doi:10.1590/2237-6089-2016-0016

Cited by 26 publications

(20 citation statements)

References 48 publications

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“…These factors could potentially influence both personality and obesity. Change in various personality traits has also been observed following bariatric surgery 17 , but it is uncertain whether these results could generalize to weight change that follows more traditional, nonsurgical attempts or interventions. Altogether, causal links between personality and BMI remain unknown.…”

Section: Introductionmentioning

confidence: 99%

Two genetic analyses to elucidate causality between body mass index and personality

et al. 2021

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Background/Objectives: Many personality traits correlate with BMI, but the existence and direction of causal links between them are unclear. If personality influences BMI, knowing this causal direction could inform weight management strategies. Knowing that BMI instead influences personality would contribute to a better understanding of the mechanisms of personality development and the possible psychological effects of weight change. We tested the existence and direction of causal links between BMI and personality.Subjects/Methods: We employed two genetically informed methods. In Mendelian randomization, allele scores were calculated to summarize genetic propensity for the personality traits Neuroticism, Worry, and Depressive Affect and used to predict BMI in an independent sample (N=3 541). Similarly, an allele score for BMI was used to predict eating-specific and domain-general phenotypic personality scores (PPSs; aggregate scores of personality traits weighted by BMI). In a Direction of Causation analysis, twin data from five countries (N=5 424) were used to assess the fit of four alternative models: PPSs influencing BMI, BMI influencing PPSs, reciprocal causation, and no causation.Results: In Mendelian randomization, the allele score for BMI predicted domain-general (β=0.05; 95% CI 0.02, 0.08; P=.003) and eating-specific PPS (β=0.06; 95% CI 0.03, 0.09; P<.001). The allele score for Worry also predicted BMI (β=-0.05; 95% CI -0.08, -0.02; P<.001), while those for Neuroticism and Depressive Affect did not (P≥.459). In Direction of Causation, BMI similarly predicted domain-general (β=0.21; 95% CI 0.18, 0.24; P<.001) and eatingspecific personality traits (β=0.19; 95% CI 0.16, 0.22; P<.001), suggesting causality from BMI to personality traits. In exploratory analyses, links between BMI and domain-general personality 2 CAUSALITY BETWEEN BMI AND PERSONALITY traits appeared reciprocal for higher-weight individuals (BMI>~25). Conclusions:Although both genetic analyses suggested an influence of BMI on personality traits, it is not yet known if weight management interventions could influence personality.Personality traits may influence BMI in turn, but effects in this direction appeared weaker.

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Section: Introductionmentioning

confidence: 99%

Two genetic analyses to elucidate causality between body mass index and personality

et al. 2021

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“…Most studies using models to predict outcomes of bariatric surgery (BS) strived to identify predictors of successful weight loss [1][2][3][4][5]. However, modern concepts in BS relativize the role of weight loss as single criterion of postbariatric success, and advocate offering BS preferably to patients with complications of obesity that would be expected to be resolved postoperatively [6,7].…”

Section: Introductionmentioning

confidence: 99%

Predictors of a Healthy Eating Disorder Examination-Questionnaire (EDE-Q) Score 1 Year After Bariatric Surgery

et al. 2019

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BACKGROUND: Bariatric surgery (BS) has been shown to ameliorate health-related quality of life and eating disorder symptoms. However, the correlation of these changes with weight loss is not uniform, suggesting that additional factors have an impact on postoperative outcomes. OBJECTIVE: To assess the impact of BS on eating disorder symptoms at 1 year postoperatively and to generate predictive models for the achievement of optimal eating behavior. METHODS: Retrospective cohort study on a prospectively collected database of all consecutive patients who underwent primary BS in our academic center between January 2015 and March 2017. Eating Disorder Examination-Questionnaire (EDE-Q) was used to measure eating psychopathology. Logistic regression was used to estimate the odds ratio of achieving "healthy" EDE-Q at 1 year. Missing data was handled by multiple imputations for the regression model. RESULTS: Two-hundred thirty-four patients were included. A complete-case analysis in 135 cases showed a "healthy" EDE-Q in 27.4% at baseline and in 83.7% at 1 year (difference = 56.3%, P = 0.018). Only the baseline EDE-Q "healthy" status influenced significantly the odds of achieving "healthy" EDE-Q at 1 year (OR 6.7, 95% CI 1.18-38.14, P = 0.04). CONCLUSION: BS seems to promote successful treatment of self-reported eating disorder symptoms during the first postoperative year. The achievement of optimal results is independent of age, sex, weight loss, obesity-related comorbidity status, surgical technique, or 30-day surgical complications. Future studies, using validated questionnaires specifically designed to investigate eating behavior after BS and/or direct measurements of the eating behavior are needed to clarify the underlying neuropsychologic mechanisms that drive the observed postoperative changes.

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“…Two recent systematic reviews have analyzed the relationship between personality traits and bariatric surgery outcomes[ 10 , 11 ]. Better weight loss response is predicted by a combination of different personality traits including high cooperativeness, high persistence, low novelty seeking, low impulsivity, an internal locus of control, a low tendency toward externalizing behaviors, a secure attachment style, and low levels of alexithymia.…”

Section: Predicting Weight Lossmentioning

confidence: 99%

Emergence of bariatric psychiatry as a new subspecialty

Troisi¹

2022

WJP

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Bariatric surgery is the branch of surgery aimed at helping a person with obesity lose weight. The implementation of surgical treatment of obesity is growing at an impressive rate. As expected, the expanding implementation of bariatric procedures has progressively revealed critical issues that were not evident when the number of obese patients treated with surgery was relatively small. One critical issue is the importance of mental health assessment and care of bariatric patients. The aim of this review is to provide readers with an up-to-date summary of the goals, methods, and clinical strategies of bariatric psychiatry. The aims can be grouped into three distinct categories. First, to ascertain that there are no psychiatric contraindications to safe bariatric surgery. Second, to diagnose and treat pre-surgery mental conditions that could predict poor weight loss. Third, to diagnose and treat post-surgery mental conditions associated with poor quality of life. Although bariatric psychiatry has gained the status of a new subspecialty within the field of mental health and psychopathology, many clinical questions remain unsolved. We need more long-term data on outcome measures such as quality of life, adherence to behavioral guidelines, risk of suicide, and post-surgery prevalence of psychological disturbances and mental disorders.

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Personality characteristics and bariatric surgery outcomes: a systematic review

Cited by 26 publications

References 48 publications

Two genetic analyses to elucidate causality between body mass index and personality

Two genetic analyses to elucidate causality between body mass index and personality

Predictors of a Healthy Eating Disorder Examination-Questionnaire (EDE-Q) Score 1 Year After Bariatric Surgery

Emergence of bariatric psychiatry as a new subspecialty

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