Weight loss expectations and weight loss after surgery: the mediating role of body image and weight concerns

Translation and Validation of the Brazilian Version of the European Obesity Academy Questionnaire on Patients' Motivations for Seeking Metabolic and Bariatric Surgery

PURPOSE

Understanding patients' motives for undergoing metabolic and bariatric surgery (MBS) is key to managing postoperative expectations. We aimed to translate and validate the 14-item European Obesity Academy Questionnaire on Expectations about Surgical Treatment (EOAQ-EST) to Brazilian Portuguese for research and clinical use.

MATERIALS AND METHODS

This study included a total of 198 candidates for MBS at a reference academic hospital in Brazil from January 2021 to February 2022. We followed Beaton and Bombardier's guidelines for translation and cultural adaptation, including translation, back-translation, comparative analysis, expert review, pilot testing, and the creation of the final version of the questionnaire. Reliability was tested with McDonald's omega, and internal validity was assessed using confirmatory factor analysis (CFA).

RESULTS

The final version was applied to 161 patients, 85% female, with a mean age of 46.4 ± 10.3 years and a mean BMI of 48.3 ± 8.2 kg/m2. Validity was supported by a bifactorial model (95% CI 0.044-0.104, p = 0.08), excluding one item (improved fertility) due to a floor effect. The reliability analysis showed that the 13 remaining items were internally consistent, with a McDonald's ω of 0.625.

CONCLUSIONS

The Brazilian-Portuguese version of EOAQ-EST proved to be user-friendly, consistent, and reliable. This questionnaire may assist multidisciplinary teams in effectively addressing patients' expectations concerning metabolic and bariatric surgery (MBS) outcomes.

Shape discrepancy, weight bias internalization, and eating-disorder psychopathology in patients with loss-of-control eating after bariatric surgery

BACKGROUND

Postoperative loss-of-control (LOC) eating is associated with eating-disorder psychopathology, poorer weight loss, and mental health outcomes following bariatric surgery. The nature and significance of shape discrepancy has not been examined in patients with LOC eating following bariatric surgery.

OBJECTIVES

To examine shape discrepancy, WBI (weight bias internalization) and ED (eating-disorder) psychopathology in patients with LOC eating after bariatric surgery.

SETTING

Yale University School of Medicine, United States.

METHODS

Participants (N = 148, 84.5% female) seeking treatment for eating and weight concerns and with recurrent LOC eating approximately 6 months after bariatric surgery were assessed with the Eating Disorder Examination-Bariatric Surgery Version Interview and completed questionnaires measuring WBI and depression. Participants selected body shapes representing their current and ideal shapes, and a shape discrepancy score was calculated.

RESULTS

Most participants (N = 142/148) reported an ideal shape smaller than their current shape; shape discrepancy scores ranged from 0 to 5 (M = 1.89, SD = .82). Greater shape discrepancy was significantly correlated with greater current body mass index (BMI; r = .271, p=<.001) and percent weight loss (%WL) since surgery (r = -.19, p = .023). After adjusting for %WL, shape discrepancy was significantly correlated with greater WBI (r = .37, p < .001), depression (r = .27, p < .001), and ED psychopathology (r = .25, p = .002).

CONCLUSIONS

Nearly all participants preferred a significantly smaller shape than their current shape. Greater discrepancy between current and ideal shape was associated with higher levels of a range of behavioral (ED psychopathology), cognitive (WBI), and psychological/somatic (depression) concerns. These findings, which persisted after adjusting for %WL, highlight the importance of addressing body image in postoperative interventions.

Predictors of improved psychological function after bariatric surgery

BACKGROUND

Negative psychological sequelae have been reported after bariatric surgery. It is unclear which factors affect psychological function in the first postoperative years.

OBJECTIVE

Evaluation of significant predictors of improved psychological function following bariatric surgery by analyzing data from the BODY-Q questionnaire.

SETTING

Multicenter prospective cohort in 3 centers located in The Netherlands and Denmark.

METHODS

The BODY-Q questionnaire was used to assess 6 domains of health-related quality of life. The domain of interest, psychological function, consists of 10 questions from which a converted score of 0 (low) to 100 (high) can be calculated. Linear mixed models were used to analyze which patient characteristics were most predictive of the psychological function score. Secondary outcomes of interest were cross-sectional scores of psychological function and the impact of weight loss, and the effect of major short-term complications on psychological function.

RESULTS

Data were analyzed from 836 patients who underwent bariatric surgery from 2015 to 2020. Patients with lower expectations concerning weight loss (<40% desired total weight loss), higher educational level, no history of psychiatric illness, and employment before bariatric surgery demonstrated the highest psychological function scores after bariatric surgery. At 1 and 2 years after bariatric surgery, more weight loss was associated with significantly higher psychological function scores. Experiencing a major short-term complication did not significantly impact psychological function.

CONCLUSIONS

Several relevant predictors of improved postoperative psychological function have been identified. This knowledge can be used to enhance patient education preoperatively and identify patients at risk for poor psychological functioning postoperatively.

Patients' Perspectives on Dietary Patterns and Eating Behaviors During Weight Regain After Gastric Bypass Surgery

PURPOSE

Food quality, energy intake, and various eating-related problems have been highlighted as some of the components influencing weight after bariatric surgery. This study aimed to increase our knowledge of patients' perspectives on dietary patterns and eating behaviors during weight regain after bariatric surgery.

MATERIALS AND METHODS

We recruited 4 men and 12 women with obesity and the experience of weight regain after bariatric surgery at an obesity clinic in Stockholm, Sweden. Data were collected during 2018-2019. We conducted a qualitative study, carried out individual semi-structured interviews, and analyzed the recorded and transcribed interview data with thematic analysis.

RESULTS

Participants had regained 12 to 71% from their lowest weight after gastric bypass surgery performed 3 to 15 years before. They perceived their dietary challenges as overwhelming and had not expected weight management, meal patterns, increasing portion sizes, and appealing energy-dense foods to be problematic after surgery. In addition, difficulties with disordered eating patterns, emotional eating, and increased alcohol intake further contributed to the weight management hurdles. Insufficient nutritional knowledge and lack of support limited participants' ability to avoid weight regain, leading to restrictive eating and dieting without sustained weight loss.

CONCLUSION

Eating behavior and dietary factors such as lack of nutritional knowledge, emotional eating, or disorganized meal patterns contribute to difficulties with weight management after gastric bypass surgery. Improved counseling may help patients prepare for possible weight regain and remaining challenges with food and eating. The results highlight the importance of regular medical nutrition therapy after gastric bypass surgery.

Quantifying patients' expectations prior to bariatric surgery with the BODY-Q in an international multicentre cohort

Many people living with obesity may have unrealistic expectations prior to undergoing bariatric surgery. These expectations can lead to frustration, regret and even worse psychological outcomes after surgery. Prior to undergoing bariatric surgery, patients completed the BODY-Q Expectations scale. This 15-item scale asks patients to imagine what their life will be like when 2 years have passed since bariatric surgery. Scores for expectations range from 0 (low) to 100 (high). Linear regression models were used to assess which of the patient characteristics could predict patients' expectations. From 2019 to 2020, a total of 333 patients were recruited from three different countries. The mean score on the BODY-Q Expectations scale was 73.1, ±20. Out of the 15 items on the Expectation scale, people living with obesity found it most likely that bariatric surgery would make them feel better and improve their energy, while it was reported least likely that they would look good without clothes on. Younger age (p = <.01) and race (non-white) (p = .046) were found to be significant predictors for higher scores on the Expectations scale. Participants who identified as non-white from the Netherlands and United States, and those aged under 40 years reported higher expectations compared with participants who identified as white race and were 40 years of age or older. Prior to bariatric surgery, patients aged under 40 years and those who identified as non-white for race had higher expectations that their life would change after bariatric surgery. These relevant findings should be considered when giving pre-operative counselling.

Psychometric properties of the Italian body shape questionnaire: an investigation of its reliability, factorial, concurrent, and criterion validity

PURPOSE

This study was set up to investigate the reliability, factorial, concurrent, and criterion validity of the Italian version of the 34-item Body Shape Questionnaire (BSQ) and its shorter versions.

METHODS

The study included 231 patients diagnosed with an eating disorder and 58 putatively healthy people (comparison sample). The Italian BSQ-34 was administered to participants together with the Hamilton Depression Rating Scale and the Hamilton Anxiety Rating Scale. Information on body mass index, caloric intake at baseline, and the number of episodes of self-vomiting per week was also acquired.

RESULTS

Cronbach's alpha of BSQ-34 was 0.971 (95% confidence interval [CI] 0.965-0.976) in patients and 0.960 (0.944-0.974) in controls. Test-retest stability in patients (n = 69), measured with intraclass correlation coefficient, was 0.987 (0.983-0.991). Confirmatory factor analysis of the single-factor model yielded acceptable fit for all versions of the BSQ. On all BSQ versions, patients scored higher than controls with a large effect size when calculated as Cliff's delta. BMI and mean caloric intake at baseline had a stronger association with BSQ-34 than levels of anxiety and depression. The analysis with the receiver operating characteristics (ROC) curve showed that the BSQ-34 distinguished patients with an eating disorder from controls with good accuracy (Area Under the Curve = 86.5; 95% CI 82.2-90.7).

CONCLUSION

The Italian version of the BSQ possesses good psychometric properties, in both the long and the shortened versions, and it can be applied to measure body dissatisfaction for both clinical and research purposes.

LEVEL OF EVIDENCE

Level III, Evidence obtained from well-designed cohort or case-control analytic studies.

Desire to lose weight was associated with the adoption of weight control strategies but not healthier lifestyle behaviours among post-bariatric surgery patients: NHANES 2013-2018

The desire to lose weight is presumably high among patients with severe obesity who have undergone bariatric surgery. The purpose of this study is to examine the associations of desire to lose weight with weight control strategies, depressive symptoms and lifestyle behaviours among post-bariatric surgery patients. Participants were adults who participated in the National Health and Nutrition Examination Survey (2013-2018) and self-identified a history of bariatric surgery. The desire to lose weight, weight control strategies, depressive symptoms, physical activity and sitting time were measured by self-report questionnaires. Dietary information was derived from 24-h dietary recalls. The correlates of the desire to lose weight were examined by logistic or linear regressions with appropriate weighting and variance estimation techniques, adjusting for covariates such as length of time post-surgery. Results showed that at a mean of 7.8 (standard deviation [SD] = 0.5) years post-surgery (N = 142), 88.6% of participants wanted to weigh less. The average total energy intake was 1747 (SD = 72) kcal/day with 36.2% (SD = 0.7%) of the energy from total fat; the median total moderate-intensity physical activity was 88.5 min/week; and the mean sitting time was 796.0 (SD = 47.0) min/day. The desire to lose weight was positively associated with the adoption of healthy weight control strategies (odds ratio 17.4, 95% confidence interval 3.5-87.0, p < .01). No other significant associations were observed. Findings highlight the need for studies to improve patients' lifestyle behaviours post-surgery (e.g., reduce fat intake, increase physical activity) and examine the correlates of desire to lose weight in larger samples.

Body Image Concerns and Associated Impairment Among Adults Seeking Body Contouring Following Bariatric Surgery

BACKGROUND

The current study examined a range of body image concerns and associated distress and impairment in patients who have undergone bariatric surgery and are seeking subsequent body contouring surgery.

OBJECTIVES

The aim of this study was to investigate the hypotheses that individuals seeking body contouring endorse a broad pattern of body image concerns and that overall body image concern is associated with greater impairment and disability.

METHODS

The participants were 56 adults seeking body contouring surgery after bariatric surgery. All participants completed a self-report questionnaire designed for the present study to assess body image concerns specific to patients who have undergone bariatric surgery and a battery of established measures of disability, impairment, and eating-disorder psychopathology.

RESULTS

The most commonly endorsed concerns were related to loose skin (body dissatisfaction, feeling embarrassed in public, and skin rashes) whereas the least endorsed items included concerns related to scars from bariatric surgery (body dissatisfaction, avoidance of social situations, and difficulty concentrating). Participants endorsed a broad pattern of frequent distress and impairment related to physical body image changes post-bariatric surgery. Greater body image concerns were associated significantly with higher levels of disability, work-related impairment, and eating-disorder psychopathology.

CONCLUSIONS

Patients seeking body contouring surgery reported a range of body image concerns with significant associated distress, disability, and impairment related to physical changes post-bariatric surgery. The present findings underscore that although bariatric surgery is effective for reducing weight and metabolic disturbances, additional interventions for addressing body image concerns that are frequently distressing and impairing may be needed.

Eating behaviors and weight outcomes in bariatric surgery patients amidst COVID-19

Background

Recent studies suggest that eating habits are an area particularly affected by the lockdown imposed by many countries to curb the COVID-19 epidemic. Individuals that received bariatric surgery may represent a particularly susceptible population to the adverse effects of lockdown for its potential impact on eating, psychological, and weight loss outcomes.

Objectives

This study seeks to investigate the incremental impact of COVID-19 lockdown on treatment outcomes of postbariatric patients in the risk period for weight regain.

Setting

Main hospital center.

Methods

This work uses data from an ongoing longitudinal study of bariatric patients assessed before surgery (T₀), 1.5 years after sugery (T₁), and 3 years after surgery (T₂). Two independent groups were compared: the COVID-19_Group (n = 35) where T₀ and T₁ assessments were conducted before the pandemic started and T₂ assessment was conducted at the end of the mandatory COVID-19 lockdown; and the NonCOVID-19_Group (n = 66), covering patients who completed T₀, T₁, and T₂ assessments before the epidemic began. Assessment included self-report measures for disordered eating, negative urgency, depression, anxiety, stress, and weight outcomes.

Results

General linear models for repeated measures showed that the COVID-19_Group presented significantly higher weight concern (F = 8.403, P = .005, ƞ²_p = .094), grazing behavior (F = 7.166, P = .009, ƞ²_p = .076), and negative urgency (F = 4.522, P = .036, ƞ²_p = .05) than the NonCOVID-19_Group. The COVID-19_Group also showed less total weight loss (F = 4.029, P = .05, ƞ²_p = .04) and larger weight regain at T₂, with more COVID-19_Group participants experiencing excessive weight regain (20% versus 4.5%).

Conclusion

These results show evidence for the impact of the coronavirus outbreak on eating-related psychopathology and weight outcomes in postbariatric surgery patients.

Mental and emotional representations of "weight loss": free-word association networks in members of bariatric surgery-related social media communities

BACKGROUND

Mindset and communication barriers may hinder the acceptance of bariatric surgery (BS) by the eligible patient population.

OBJECTIVES

To improve the understanding of expectations, opinions, emotions, and attitudes toward weight loss among patients with obesity.

SETTING

Switzerland, Germany, Austria.

METHODS

Survey data collected from BS-related social media communities (n = 1482). Participants were asked to write 5 words that first came to their mind about "weight loss," and to select 2 emotions, which best described their corresponding feelings. Demographic and obesity-related data were collected. Cognitive representations were constructed based on the co-occurrence network of associations, using validated data-driven methodology.

RESULTS

Respondents were Caucasian (98%), female (94%), aged 42.5 ± 10.1 years, current/highest lifetime body mass index = 36.9 ± 9/50.7 ± 8.7 kg/m². The association network analysis revealed the following 2 cognitive modules: benefit-focused (health, attractiveness, happiness, agility) and procedure-focused (effort, diet, sport, surgery). Patients willing to undergo BS were more benefit-focused (odds ratio [OR] = 2.4, P = .02) and expressed more "hope" (OR = 142, P < .001). History of BS was associated with higher adherence to the procedure-focused module (OR = 2.3, P < .001), and with increased use of the emotions "gratitude" (OR = 107, P < .001), "pride" (OR = 15, P < .001), and decreased mention of "hope" (OR = .03, P < .001).

CONCLUSION

Patients with obesity in our study tend to think about weight loss along 2 cognitive schemes, either emphasizing its expected benefits or focusing on the process of achieving it. Benefit-focused respondents were more likely to consider BS, and to express hope rather than gratitude or pride. Novel communication strategies may increase the acceptance of BS by incorporating weight loss-related cognitive and emotional content stemming from patients' free associations.