Obesity and eating disorders in integrative prevention programmes for adolescents: protocol for a systematic review and meta-analysis

Exploring the relationship between problematic eating behaviors and bipolar disorder: A study on candidates for bariatric surgery

BACKGROUND

Obesity is a major concern in patients with bipolar disorder (BD) and problematic eating behaviors have been suggested to mediate their relationship. The association between problematic eating behaviors and obesity has been studied but limited data have explored the role of BD. We investigated problematic eating behaviors among patients with BD compared with candidates for bariatric surgery (BS), with or without BD, and explored the possible correlations between mood spectrum, impulsivity, body mass index (BMI).

METHODS

50 euthymic patients with BD and 200 subjects eligible for BS, 48 with BD (BS + BD) and 152 without BD (BS-BD), were recruited at the Psychiatric Clinic of University of Pisa. Assessments included: Structured Clinical Interview (SCID-5), Emotional Eating Scale (EES), Yale Food Addiction Scale (YFAS), Eating Disorder Inventory (EDI-2), Eating Disorder Questionnaire (EDE-Q), Night Eating Scale (NES), Grazing Questionnaire (GQ), Mood Spectrum Self-Report (MOOD-SR), Barratt Impulsivity Scale (BIS).

RESULTS

BS + BD reported significantly higher EDI-2 and EDE-Q scores than the other groups. BD and BS + BD showed significantly higher BIS-11 scores than BS-BD. Among BS, EES and YFAS were associated with mood spectrum symptoms.

LIMITATIONS

Small BD sample size, BS may have underreported psychiatric symptoms to get approved for surgery, the interview didn't inquire about BS receiving GLP-1 agonists therapy.

CONCLUSIONS

Results showed a high prevalence of problematic eating behaviors among patients with BD and severely obese. Problematic eating behaviors may aggravate BD symptoms. Mood spectrum symptoms in obese subjects need to be carefully researched in as relate to severity and post-surgical course of BS.

Association between lifestyle-related, psychosocial factors and obesity among female adolescents in Taiwan

PURPOSE

To examine a wide range of potential contributors to the risk of obesity in female adolescents.

DESIGN AND METHODS

Data for this study were collected using a cross-sectional design. A group of 175 female adolescents were recruited, and information on their demographic characteristics, lifestyle-related behaviors, and psychosocial factors was collected using a self-administered questionnaire during September 2018 to January 2019. Data were analyzed using SPSS 24.0.

RESULTS

An overestimation of body weight was negatively correlated with overweight in the female adolescents. Age at menarche was negatively correlated with the arisk of overweight. Adolescents who slept for >7 h on weekend nights were less likely to be overweight. Eating more cheese, fish, seafood, and organ meats was negatively correlated with obesity risk. The female adolescents were more likely to become overweight if they ate dinners prepared by family and experienced more disturbances from parents and other family members.

CONCLUSIONS

Female adolescents are a unique population affected by obesity. Although incorporating both lifestyle-related behavioral and psychosocial factors in future investigations and developing multicomponent interventions for obesity prevention are crucial, female adolescents should receive the utmost attention from researchers to alleviate the health burden of obesity.

PRACTICE IMPLICATIONS

The intertwined nature of obesity-related factors warrants future investigations to elaborate their roles interplaying with the risk of obesity. Multicomponent interventions should be developed, and nurses and health-care providers should target their efforts on obesity prevention for this specific population.

Effect of an education and mindfulness-based physical activity intervention for the promotion of positive body image in Lithuanian female students

PURPOSE

The aim of this study was to test the effectiveness of an 8-week classroom education and mindfulness-based physical activity intervention for the promotion of positive body image in female students.

METHODS

A quasi-experimental study was carried out with 110 Lithuanian female students (mean age 21.5 ± 3.5, range 19-35 years). Thirty students voluntarily participated in the intervention programme and 80 students volunteered in the assessment-only control group. The intervention comprised five cognitive behavioural therapy classroom education sessions and mindfulness-based exercise (one exercise workout per week). The intervention group was evaluated with a pre-test and post-test and the control group completed measures at parallel times.

RESULTS

Compared with the control group participants, the intervention group participants reported greater improvements in positive body image and a reduction in body dissatisfaction and drive for thinness and internalisation of stereotyped beauty ideals, with medium to large effects. There were significant time × group interactions for pre-test to post-test changes in internalisation of beauty ideals, body area satisfaction, body dissatisfaction and body appreciation. In all cases, the interaction reflected greater pre-test to post-test changes in the intervention group compared with the control group, whose scores remained stable. A decrease in appearance orientation, overweight preoccupation, disordered eating and physical activity was observed in the control group, but the effect sizes were low.

CONCLUSION

The preliminary findings of this study support the efficacy of cognitive behavioural therapy methods and mindfulness-based exercise intervention aimed to promote positive body image in student-aged women. Future studies should test the efficacy of the introduced programme in larger randomised samples of young women.

LEVEL IV

Evidence obtained from multiple time series with or without an intervention.

An exploration of the tripartite influence model of body image in Lithuanian sample of young adults: does body weight make a difference?

PURPOSE

The present study aimed to test the sociocultural Tripartite Influence Model (TIM) that helps to explain the associations between the sociocultural pressures to achieve stereotyped body ideals and disordered eating in young Lithuanian women and men of different body mass.

METHODS

A mixed-gender sample of students (n = 1850, 58.8% female, the mean age of men was 20.4 (SD = 3.1) years, of women 22.4 (SD = 5.8) years) filled in series of questionnaires including the social attitudes towards appearance, body image, disordered eating and drive for muscularity. Mediation analyses were performed to estimate the size of total, direct, and indirect effects of variables in the models.

RESULTS

For women of different body weight, the TIM model was fully replicated. For men of normal weight, internalization of the muscular/athletic ideal, drive for muscularity and greater investment towards appearance mediated the relationships between peers' pressures and disordered eating. For overweight men, internalization of the thin and muscular/athletic ideals, poorer body image mediated associations between pressure from the peers and disordered eating. However, the internalization of the muscular/athletic ideal and the greater appearance evaluation mediated the associations between sociocultural pressures and disordered eating for overweight and obese men.

CONCLUSION

The TIM was replicated in women of different body weight. However, internalization of the thin/low fat ideal was not relevant for men of normal body weight and internalization of the muscular ideal had different outcomes for men of different body mass index. The implications of the results for practice are discussed.

LEVEL OF EVIDENCE

V, Cross-sectional descriptive study.

Energy, nutrients and food sources in snacks for adolescents and young adults

Objective:

To evaluate associations between snacking and energy, nutrients and food source, and to identify the contribution of snacking across age, sex, weight status and lifestyle behaviors among adolescents and young adults.

Methods:

A sub-sample was calculated from the population-based cross-sectional study 2015-Health Survey of São Paulo (ISA-Capital). The survey “ISA-Nutrição” used a sample of non-institutionalized individuals aged >15 years. For this study, only adolescents (12-18 years old; n=418) and young adults (19-29 years old; n=218) were included. Snacks were identified, and their contribution to energy, nutrients, and food sources were calculated. Descriptive statistics and logistic regressions were used.

Results:

Participants experienced an average of 2.9±0.6 snacking occasions per day. Young adults consumed more energy from morning and night snacks, and adolescents, from afternoon snacks. The top three food sources on snacking contributed to 30.5% of energy: cookies (11.8%), sugar sweetened beverages (9.4%), sweets and other desserts (9.3%). Although results were non-significant, being a female (Odds Ratio [OR] 0.93; 95% confidence interval [95%CI] 0.36-1.49), meeting the physical activity recommendations (OR 0.75; 95%CI 0.25-1.25), and scoring higher for the healthy eating index (OR 0.88; 95%C 0.24-1.52) were all factors related to increased intake of snacks. Alternatively, overweight individuals (OR -0.54; 95%CI -1.00 to -0.08) consumed less snacks.

Conclusions:

Improving the quality of snacks should be considered in behavior-change strategies.

Contribution of food groups to energy, grams and nutrients-to-limit: the Latin American Study of Nutrition and Health/Estudio Latino Americano de Nutrición y Salud (ELANS)

OBJECTIVE

To quantify the energy, nutrients-to-limit and total gram amount consumed and identify their top food sources consumed by Latin Americans.

DESIGN

Data from the Latin American Study of Nutrition and Health (ELANS).

SETTING

ELANS is a cross-sectional study representative of eight Latin American countries: Argentina, Brazil, Chile, Colombia, Costa Rica, Ecuador, Peru and Venezuela.

PARTICIPANTS

Two 24-h dietary recalls on non-consecutive days were used to estimate usual dietary intake of 9218 participants with ages between 15-65 years. 'What We Eat in America' food classification system developed by United States Department of Agriculture was adapted and used to classify all food items consumed by the ELANS population. Food sources of energy, added sugars, SFA, Na and total gram amount consumed were identified and ranked based on percentage of contribution to intake of total amount.

RESULTS

Three-highest ranked food categories of total energy consumed were: rice (10·3%), yeast breads (6·9%), and turnovers and other grain-based items (6·8 %). Highest ranked food sources of total gram amount consumed were fruit drinks (9·6%), other 100% juice (9·3%) and rice (8·3%). Three highest ranked sources for added sugars were other 100% juice (24·1 %), fruit drinks (16·5%), and sugar and honey (12·4%). SFA ranked foods were turnovers and other grain-based (12·6 %), cheese (11·9%), and pizza (10·3%). Three top sources of Na were rice (13·9%), soups (9·1 %) and rice mixed dishes (7·3 %).

CONCLUSION

Identification of top sources of energy and nutrients-to-limit among Latin Americans is critical for designing strategies to help them meet nutrient recommendations within energy needs.

Impact of Strategies for Preventing Obesity and Risk Factors for Eating Disorders among Adolescents: A Systematic Review

An effective behavior change program is the first line of prevention for youth obesity. However, effectiveness in prevention of adolescent obesity requires several approaches, with special attention paid to disordered eating behaviors and psychological support, among other environmental factors. The aim of this systematic review is to compare the impact of two types of obesity prevention programs, inclusive of behavior change components, on weight outcomes. "Energy-balance" studies are aimed at reducing calories from high-energy sources and increasing physical activity (PA) levels, while "shared risk factors for obesity and eating disorders" focus on reducing disordered eating behaviors to promote a positive food and eating relationship. A systematic search of ProQuest, PubMed, PsycInfo, SciELO, and Web of Science identified 8825 articles. Thirty-five studies were included in the review, of which 20 regarded "energy-balance" and 15 "shared risk factors for obesity and eating disorders". "Energy-balance" studies were unable to support maintenance weight status, diet, and PA. "Shared risk factors for obesity and eating disorders" programs also did not result in significant differences in weight status over time. However, the majority of "shared risk factors for obesity and eating disorders" studies demonstrated reduced body dissatisfaction, dieting, and weight-control behaviors. Research is needed to examine how a shared risk factor approach can address both obesity and eating disorders.

Elucidating individuals' beliefs about the severity of eating disorders and obesity: implications for public health programs

PURPOSE

To examine perceptions of the severity of eating disorders and obesity and the effects on these of an information manipulation while also considering the influence of potential covariates such as age, gender, physical and mental health and beliefs about the prevalence and causes of the respective conditions.

METHODS

Australian women and men (n = 488) aged 18-73 years were randomly assigned to one of four conditions: no information, neutral information, eating disorders emphasis and obesity emphasis. Mixed-model analysis of variance (ANOVA) was used to compare the perceived severity of eating disorders and obesity (within-subjects factor), while also testing the effect of manipulating information, i.e., selectively emphasising the occurrence and adverse effects of one condition or the other (between-subjects factor), on perceptions of severity. Correlational analysis was used to examine associations between perceptions of severity and potential covariates, those covariates for which significant associations were observed being included as covariates in the ANOVA.

RESULTS

Eating disorders were perceived to be a more severe condition than obesity and the information manipulation was largely ineffective. Perceptions of the severity of both eating disorders and obesity were found to be associated with several covariates, including gender, body dissatisfaction, familiarity with and beliefs about the prevalence of eating disorders and beliefs about the causes of both eating disorders and obesity.

CONCLUSIONS

The findings support the need for-and provide a platform for-greater collaboration between obesity and eating disorder researchers in the development of integrated prevention and health promotion programs.

LEVEL OF EVIDENCE

Level III.

Examining Body Appreciation and Disordered Eating in Adolescents of Different Sports Practice: Cross-Sectional Study

This cross-sectional study aimed to examine the associations between body appreciation, body functionality and disordered eating in a large adolescent sample of different levels and types of sports practice. Method: The sample consisted of 1412 adolescents (59.8% were girls). The ages ranged from 15 to 18 years old, with a mean age of 16.9 (SD = 0.5) for girls and 17.0 (SD = 0.4) for boys. Participants completed an anonymous questionnaire assessing the nature of sports participation, body appreciation, body functionality, self-esteem, body dissatisfaction, internalisation of sociocultural beauty ideals and disordered eating. A two-way ANOVA was employed to test the differences in body image concerns, body appreciation, perceived physical fitness and disordered eating behaviours in gender groups and groups of different sport types and levels. Multiple linear regression analyses were performed to predict disordered eating behaviours of different study variables. Results: Participants of leisure and competitive sports reported greater body appreciation, self-esteem and lower body dissatisfaction compared to non-participants. No differences in body appreciation and disordered eating were observed in adolescents involved in weight-sensitive and less weight-sensitive sports. Body appreciation and body functionality were associated with lower disordered eating in adolescent girls not participating in sports, leisure exercisers and participants of competitive sport as well as in boys participating in competitive sports, controlling for body mass index. Adolescent boys demonstrated greater body appreciation compared to girls. Conclusions: The results of this study support the knowledge of the protective role of positive body image preventing dysfunctional eating in adolescent girls of various sports practice and in competitive sports involved boys. Disordered eating prevention and clinical treatment programs for adolescents of different physical activity might benefit from including education about body appreciation and functionality.

Household food insecurity: associations with disordered eating behaviours and overweight in a population-based sample of adolescents

OBJECTIVE

To examine how household food insecurity is related to adolescent weight status and disordered eating.

DESIGN

Cross-sectional, population-based study. Adolescents self-reported unhealthy weight control behaviours, binge eating and meal frequency; weight status was measured. Household food insecurity was assessed by asking parents to respond to the validated six-item US Household Food Security Survey Module.

SETTING

Adolescents surveyed within Minneapolis/St. Paul public middle and high schools completed surveys at school, and their parents/guardians were surveyed by mail during the 2009-2010 academic year.

PARTICIPANTS

Ethnically/racially diverse, primarily low-income adolescents (mean age: 14·4 years, range: 10-22 years) and their parents/guardians (n 2285 dyads).

RESULTS

More than one-third (38·9 %) of the adolescents experienced past-year household food insecurity, 43·2 % reported disordered eating and 39·6 % were overweight. Generalised regression models showed that food insecure (FI) compared with food secure (FS) adolescents had higher prevalence of overweight (FI: 42·3 % v. FS: 37·9 %, P = 0·039), lower breakfast consumption (FI: 4·1 times/week v. FS: 4·4 times/week, P = 0·005) and greater use of unhealthy weight control behaviours (FI: 49·0 % v. FS: 39·5 %, P < 0·001) in unadjusted models. Models adjusted for parental education, ethnicity/race, sex and age found that food insecurity was associated with higher prevalence of unhealthy weight control behaviours (FI: 44·5 % v. FS: 37·8 %, P = 0·007), but not with weight status or other eating behaviours.

CONCLUSIONS

These results suggest that food insecurity may be an independent risk factor for unhealthy weight control behaviours, indicating a need to approach these intersecting issues in a comprehensive manner.

Disordered Eating Behaviors and 15-year Trajectories in Body Mass Index: Findings From Project Eating and Activity in Teens and Young Adults (EAT)

PURPOSE

Disordered eating behaviors are prevalent among adolescents. Understanding how these behaviors link to body mass index (BMI) across different stages of development and over an extended period may provide insight for designing interventions around eating and weight. This study had two objectives: (1) to assess the distribution of disordered eating behaviors and develop a global score of disordered eating behaviors among adolescents and (2) to examine the association between the number of disordered eating behaviors in adolescence and BMI trajectory over 15 years.

METHODS

Project Eating and Activity in Teens and Young Adults (EAT), a longitudinal study of weight-related health and behavior comprising four waves (EAT-I to EAT-IV), measured seven disordered eating behaviors (importance of weight and shape, frequent dieting, extreme unhealthy weight control behaviors, overeating, distress about overeating, loss of control while overeating, and frequency of overeating and loss of control) at baseline (N = 1,230, ages 11 to 18 years, 1998-1999). These behaviors were summed to create a disordered eating behavior score. BMI was self-reported at all four waves (up to age 27-33 years at EAT-IV). Repeated measures with random slope and intercept examined the association between disordered eating behaviors and BMI trajectories over 15 years.

RESULTS

At baseline, 50.7% and 33.7% of females and males endorsed disordered eating behaviors. Throughout 15 years of follow-up, sociodemographic-adjusted BMI was higher among adolescents who engaged in disordered eating behaviors. The association remained significant after further adjustment for baseline BMI (p < .05).

CONCLUSIONS

Among adolescents, regardless of the type of disordered eating behaviors, engagement in disordered eating behavior predicted higher BMI in a dose-response fashion.

Determinants of Binge Eating Symptoms in Children with Overweight/Obesity

BACKGROUND

Examining binge eating symptoms before the diagnosis of binge eating disorder in children with obesity could provide important information on prevention of future eating disorders.

METHODS

We examined the prevalence and multilevel determinants of three binge eating symptoms: (1) sneaking, hiding, or hoarding food; (2) eating in the absence of hunger, and (3) inhibition or embarrassment when eating in front of others among 817 children aged 5-12 years old with overweight/obesity receiving primary care in eastern Massachusetts. We examined the associations of child and parent/household characteristics with the prevalence ratios (PRs) of these three binge eating symptoms.

RESULTS

Approximately one-third of parents reported that their children would sneak, hide, or hoard food; 40% ate large amounts in the absence of hunger; and 8% were inhibited/embarrassed when eating in front of others. In multivariate analyses, greater screen time was associated with a higher prevalence of sneaking, hiding, or hoarding (PR 1.06, 95% CI: 1.01-1.11). We found that children with severe obesity (PR 1.50, 95% CI: 1.24-1.81 vs. nonsevere obesity) had higher prevalence of eating in the absence of hunger. Increased hours of screen time were associated with higher prevalence of eating in the absence of hunger, (PR: 1.07, 95% CI: 1.03-1.11), whereas longer sleep duration (PR: 0.90, 95% CI: 0.82-0.99) was associated with lower prevalence of eating in the absence of hunger.

CONCLUSIONS

Eating in the absence of hunger was the most common symptom in our sample and was associated with screen time and sleep. ClinicalTrials.gov NCT01537510.