Experiences of weight stigmatization: a review of self-report assessment measures

Prevalence of unhealthy behaviors and their associations with non-suicidal self-injury, suicidal ideation and suicide attempt among Chinese adolescents

BACKGROUND

Unhealthy lifestyle behaviors among adolescents have emerged as a significant public health concern worldwide, however, there is little investigation on the impact of unhealthy behaviors on non-suicidal self-injury (NSSI), suicidal ideation (SI) and suicide attempt (SA). This study aimed to investigate the prevalence of seven unhealthy behaviors as well as their associations with NSSI, SI and SA, and to explore whether the aforementioned associations differ across sex.

METHODS

A total of 74,152 adolescents were included in this study via a multi-stage, stratified cluster, random sampling method in 2021. Information about unhealthy behaviors (insufficient physical activity, current smoking, current drinking, excessive screen time, long homework time, insufficient sleep and unhealthy BMI), NSSI, SI, SA and other demographics was collected. Sampling weights were used to estimate the prevalence, and the weighted logistic regression models were performed. Stratified analyses by sex and sensitive analyses were conducted.

RESULTS

Overview, the weighted prevalence of adolescents had more than five unhealthy behaviors were 5.2%, with boys showing a higher prevalence than girls (6.5% vs.3.8%). Current smoking, current drinking, excessive screen use, long homework time, insufficient sleep, and unhealthy BMI were significantly associated with NSSI, SI and SA. Moreover, adolescents with high lifestyle risk scores were associated with an increased risk of NSSI (5-7 vs. 0: OR 6.38, 95% CI 5.24-7.77), SI (5-7 vs. 0: OR 7.67, 95% CI 6.35-9.25), and SA (5-7 vs. 0: OR 9.57, 95% CI 6.95-13.17). Significant sex differences were found in the associations of unhealthy behaviors with NSSI, SI and SA.

CONCLUSION

Unhealthy behaviors are quite common among Chinese adolescents. Adolescents with multiple unhealthy behaviors are associated with increased risks of NSSI, SI, and SA. The implementation of school and family-based interventions to promote healthy lifestyles is recommended as a preventive measure against self-injurious behavior and suicidality in adolescents.

Weight stigma is a predictor of disordered eating in Brazilian college students during the COVID-19 pandemic: A 16-month cohort follow-up

This study examined the relationship between weight stigma and disordered eating behaviors in university students during the COVID-19 pandemic, considering individuals with and without overweight. A national sample of 738 college students completed an online questionnaire at three time points between July 2020 and December 2021, reporting their experiences of weight stigma, perceived increase in weight stigma during the pandemic, internalized weight stigma, and disordered eating behaviors. The findings showed that the trajectories of disordered eating behaviors varied depending on participants' anthropometric status. Among those with overweight, there was a decrease over time in binge eating, food restriction, and purging. Conversely, the non-overweight group experienced a slight increase in binge eating from T2 to T3. Using the Generalized Estimating Equations model, the study revealed that weight stigma predicted disordered eating behaviors in both weight spectrums during the pandemic. Experiences of weight stigma and the perceived increase in weight stigma significantly increased the likelihood of engaging in binge eating, food restriction, and purging among individuals with overweight. Furthermore, the internalization of weight stigma was longitudinally associated with all examined eating behaviors, regardless of anthropometric status. These findings highlight the importance of addressing weight stigma to prevent disordered eating in college students.

Distribution of perceived weight stigma and its psychological impact on obese people in Saudi Arabia

Background

Worldwide, obesity prevalence has nearly tripled since 1975, with about 13% of adults being obese and about 39% overweight. Overweight and obese persons are vulnerable to frequent stigmatization and discrimination because of their weight, an issue that is barely discussed in the medical literature. In Saudi Arabia, the prevalence of obesity is 36%. However, there is no available data on the prevalence of perceived weight stigma among obese people. Therefore, this study aims to (a) determine the Distribution of perceived weight stigma among obese people, (b) identify the major sources of stigma, and (c) determine the psychological impact of perceived weight-based stigma on obese people in Saudi Arabia.

Methods

This is a cross-sectional study conducted in Saudi Arabia using an online questionnaire that includes Stigmatizing Situations Inventory Scale (SSI) and Perceived Stress Scale (PSS).

Results

1341 people participated in the study, of which 819 (61%) were females and 522 (39%) were male. Of all, 62 (5%) were underweight, 357 (27%) were normal weight, and 922 (69%) were overweight or obese. Participants in the overweight/obese category scored higher on average in every SSI item than did their counterparts in the underweight and normal weight categories, indicating higher levels of stigma among overweight and obese participants. The major sources of stigma for overweight and obese participants were identified based on the mean of participant responses to each item. These were: assumption about overeating or binge eating (mean response ± SD 2.80 ± 3.01), children's comments (2.22 ± 2.58), being stared at in public (2.18 ± 2.83) and being singled out as a child (2.05 ± 2.67).

Conclusion

Parallel with the literature, our findings indicate a high prevalence of weight stigma in Saudi Arabia which can have negative psychological implications on obese people.

Weight stigma and disordered eating behaviors during the COVID-19 pandemic: the mediating role of weight gain concern and psychological distress

OBJECTIVES

The purpose of this study is to investigate whether the relationship between weight stigma experiences and disordered eating behaviors during the COVID-19 pandemic is mediated by weight gain concern and psychological distress among university students with and without overweight.

METHODS

A cross-sectional study was conducted with university students from five regions of Brazil who participated in the baseline assessment of the Online Cohort on Eating Behavior and Health (July/August 2020). Information on the frequency of binge eating episodes, food restriction, and purging, as well as experienced weight stigma, weight gain concern, and psychological distress, were recorded in an online questionnaire. Stratified structural equation modeling (SEM) analyses were performed to address the research questions of interest.

RESULTS

Out of the total sample (n = 2511), 33.5% of participants reported experiencing weight stigma. The prevalence of binge eating episodes, food restriction, and purging was 43.7%, 24.1%, and 5.4%, respectively. These behaviors were more prevalent in individuals with overweight than in those without this condition. Furthermore, it was observed that weight gain concern and psychological distress mediated the relationship between weight stigma and disordered eating behaviors regardless of body weight status.

CONCLUSIONS

Experiences of weight stigma and disordered eating behaviors were prevalent among Brazilian university students, especially among those with overweight. Weight gain concern and psychological distress appear to be important factors underlying the relationship between these constructs during the pandemic, and they can contribute to the development of targeted strategies for the prevention and management of disordered eating.

LEVEL OF EVIDENCE

Level V, cross-sectional study.

Value of cognitive interviewing in the development of the weight stigma in healthcare inventory

BACKGROUND

Despite the detrimental effects of weight stigma in healthcare, there is no widely validated measure comprehensively examining such experiences.

OBJECTIVE

We aimed to develop and pilot test an inventory to measure patient experiences of weight stigma in healthcare, and to ensure our items were easily understood.

PATIENT INVOLVEMENT

During our iterative design process, patients assessed whether our inventory items were easy to understand and we included an open-ended comments question.

METHODS

We compiled items from pre-existing tools assessing experiences of weight stigma in healthcare, and developed our own novel items. We conducted field pre-testing with a convenience sample of 48 patients at a Midwest academic internal medicine clinic. We utilized an iterative design process whereby respondents provided feedback on our inventory, we analyzed the data and made revisions, and then repeated the cycle.

RESULTS

Respondents found some of the language in our items confusing; expressed reluctance to speculate on the motivations of healthcare providers; had difficulty with "double-barreled" questions; found some questions vague; and expressed the desire to have weight addressed in clinical encounters neither too much nor too infrequently. We altered items appropriately, and in subsequent rounds of data collection they were easier to understand.

DISCUSSION

Patients found many common weight stigma survey items and some of our novel items confusing. Our modified inventory reduces patient confusion and enhances data quality.

PRACTICAL VALUE

Our study demonstrates the value of cognitive interviewing. Furthermore, the WSHCI will be a useful tool for clinicians and research teams seeking to measure weight stigma in healthcare but first needs to be validated in a larger sample.

FUNDING

This study was supported by the Physician Scientist Training Program, Diabetes Center T32 (DK112751), and the Clinical and Translational Science Award grant funded from the National Institutes of Health (UL1TR002537).

Psychometric properties of the Arabic versions of the Three-Item Short Form of the modified Weight Bias Internalization Scale (WBIS-3) and the Muscularity Bias Internalization Scale (MBIS)

BACKGROUND

There is a lack of psychometrically sound measures to assess internalized weight and muscularity biases among Arabic-speaking people. To fill this gap, we sought to investigate the psychometric properties of Arabic translations of the Three-Item Short Form of the Modified Weight Bias Internalization Scale (WBIS-3) and the Muscularity Bias Internalization Scale (MBIS) in a sample of community adults.

METHODS

A total of 402 Lebanese citizens and residents enrolled in this cross-sectional study (mean age: 24.46 years (SD = 6.60); 55.2% females). Exploratory Factor Analysis (EFA) was conducted using the principal-axis factoring and oblimin rotation to estimate parameters and the parallel analysis to determine the number of factors. CFA was conducted using the weighted least square mean and variance adjusted estimator which was recommended for ordinal CFA.

RESULTS

An Exploratory Factor Analysis of the WBIS-3 resulted in a robust single-factor solution for the three items. An examination of the factorial structure of the MBIS revealed a two-factor structure, which showed adequate model fit. We obtained excellent internal consistency as indicated by McDonald's ω coefficients of .87 for the WBIS-3 total score and ranging between .92 and .95 for the MBIS two factor scores. Cross-sex invariance of the MBIS was confirmed at the configural, metric, and scalar levels. Convergent validity was supported by significant correlations between the WBIS-3 and MBIS. Divergent and concurrent validity were approved by showing small to medium correlations between MBIS/WBIS-3 scores and muscle dysmorphia, disordered eating symptoms, and body image concerns.

CONCLUSION

Findings suggest that the Arabic versions of the WBIS-3 and MBIS are suitable for use in Arabic-speaking adults.

Spanish validation of the Modified Weight Bias Internalization Scale (WBIS-M) for adolescents

PURPOSE

Weight Bias Internalization (WBI) is pervasive and potentially damaging for health. Little is known about WBI in youth. As negative effects of WBI have been observed when controlling for BMI, measures that allow WBI to be assessed across different weight categories are needed. The Modified Weight Bias Internalization Scale (WBIS-M) is one of the most frequently used scales in this field. Our purpose was to obtain a Spanish validated version of the WBIS-M for adolescents across different weight statuses.

METHODS

The data were collected from 298 secondary students (mean age 14.31; 48.32% girls; 18.8% were overweight and 6.4% had obesity). Internal structure was examined by a cross-validation analysis, using both exploratory and confirmatory factor analyses in different subsamples.

RESULTS

Item 1 showed a psychometric anomalous functioning and was deleted. The one-factor structure of the 10-item version was confirmed with adequate fit ([EFA (KMO = 0.915, χ2(55) = 1075.633, p < 0.0001)]; [CFA (χ2(35) = 200.515; GFI = 0.995; PGFI = 0.992; NFI = 0.991; SRMR = 0.060)]). Internal consistency was high [Formula: see text] ω = 0.93). Significant correlations with the same set of external variables assessed in the original version (anti-fat bias, self-esteem, mood, body dissatisfaction, drive for thinness, binge eating), all of them correlates of WBI in adolescents, were found. Girls and participants with obesity obtained higher scores.

CONCLUSION

The results provide support for the validity and reliability of our WBIS-M version for use with adolescents across weight categories in Spain.

LEVEL OF EVIDENCE

Level III, evidence obtained from well-designed cohort studies.

Evaluation of the psychometric properties of self-reported weight stigma measures: A systematic literature review

OBJECTIVE

Conceptualisation and measurement of weight stigma varies across available studies assessing those affected. This paper aims to systematically review the psychometric properties of available self-reported measures of weight stigma.

METHOD

Studies exploring the development and/or validation of weight stigma measures were identified through systematically searching Medline, CINAHL, PsycINFO, Embase, Web of Science, and Scopus databases. The Consensus-based Standards of Health Measurement Instruments (COSMIN) checklist was used to assess the psychometric properties of measures.

RESULTS

Thirty-six articles, reporting 18 different weight stigma measures, were included. For most included measures, measure development and content validity have not been assessed/reported. Structural validity, internal consistency, and hypothesis testing were the most commonly assessed/reported psychometric properties. High-quality ratings were given only for these properties. Most measures were rated as "indeterminate" and received an overall quality rating of "Very Low" as results were based on limited evidence.

CONCLUSIONS

Psychometric properties for published weight stigma measures have rarely been assessed/reported. The observed poor methodological quality for measure development, and limited content validity evidence, negatively impact the quality of evidence for the measures. There is a need for studies assessing the psychometric properties of existing weight stigma measures using COSMIN guidelines, and for a well-designed weight stigma measure informed by both theory and research.

What are weight bias measures measuring? An evaluation of core measures of weight bias and weight bias internalisation

Research exploring weight bias and weight bias internalisation (WBI) is grounded upon several core measures. This study aimed to evaluate whether operationalisations of these measures matched their conceptualisations in the literature. Using a 'closed card-sorting' methodology, participants sorted items from the most used measures into pre-defined categories, reflecting weight bias and non-weight bias. Findings indicated a high degree of congruence between WBI conceptualisations and operationalisations, however found less congruence between weight bias conceptualisations and operationalisations, with scale-items largely sorted into non-weight bias domains. Recommendations for scale modifications and developments are presented alongside a new amalgamated weight bias scale (AWBS).

Differences in weight stigma between gay, bisexual, and heterosexual men

Gay and bisexual men may experience more weight stigma than heterosexual men; however, research is limited. We examined differences in experienced weight discrimination, weight bias, and internalized weight bias in two studies: the first comprising gay (n = 351), bisexual (n = 357), and heterosexual (n = 408) men, and the second comprising gay (n = 614) and bisexual (n = 123) men. In Study 1, bisexual men reported experiencing more weight discrimination than gay (r = .07) and heterosexual (r = .08) men. Bisexual (Glass' Δ = 0.41) and gay (Δ = 0.37) men reported greater internalized weight bias than heterosexual men. Heterosexual men reported more weight bias than gay (Cohen's d = 0.35) and bisexual (d = 0.46) men. In Study 2, gay men reported more internalized weight bias than bisexual men (d = 0.26). Sexual orientation did not moderate the relationships of weight stigma with either body dissatisfaction or psychological quality of life. Among gay and bisexual men, experiencing weight discrimination predicted diminished psychological quality of life through internalized weight bias and body dissatisfaction. Our research emphasizes the importance of assessing weight stigma among sexual minorities and suggests bisexual men might be particularly vulnerable to weight stigma.

The challenge for global health systems in preventing and managing obesity

Few health crises have been as predictable as the unfolding obesity pandemic. Clinical and public health services remain the front line of efforts to reduce the burden of obesity. While a range of clinical practice guidelines exist, the need for clinical interventions exceeds the capacity of health systems to provide care for those affected with obesity, and routine clinical practices fall far short of guidelines recommendations even in high-income countries. In this manuscript, we discuss current recommendations regarding obesity interventions and key challenges facing global health systems in managing the health needs of people with obesity. Improving the provision of obesity-related health care is a considerable challenge and will require changing existing perceptions of obesity as a matter of personal failure to its recognition as a disease, innovative approaches to health system reform, clinician capacity building and implementation support, a focus on prevention, and wise resource allocation. Leadership from governments, the medical profession, and patient and community groups to address the issues raised in this manuscript is urgently needed to address the growing health concern.

Factors Associated With Underestimation of Weight Among Adults Living in Puerto Rico

The aim of this cross-sectional study was to examine the associations between underestimation of weight and sociodemographic, health, and dietary factors among adults living in a rural community in Puerto Rico. For data collection, a researcher-designed questionnaire was distributed to each household in the area. A multivariable logistic regression was conducted for data analysis. Results revealed that the prevalence of overweight and obesity was 34.4% and 38.7%, respectively. A total of 53.4% of the participants underestimated their weight, most of whom were either overweight or obese. Weight underestimation was associated with being male, age ≥35 years, living below the poverty level estimate, perceiving diet quality as excellent/very good, and consuming fast food ≥1 times/week. In conclusion, overweight/obesity rates were high in this sample, and underestimation of weight was common among people with higher body mass index levels. Future public health interventions targeting obesity in this population should consider self-perception of body weight.

Association between body weight status and suicidal ideation among Chinese adolescents: the moderating role of the child's sex

PURPOSE

Suicidality (ranging from suicidal ideation to suicidal attempts and completed suicide) is a major and preventable public health concern, and body weight is considered a modifiable factor which might be helpful to the early risk assessment of suicidal ideation. This study aimed to comprehensively evaluate the association of body weight status with suicidal ideation across sex among Chinese adolescents.

METHODS

Data were drawn from the 2015 National School-based Chinese Adolescents Health Survey, and 54,640 students' questionnaires were completed and qualified for the survey. Body mass index z scores were calculated and categorized into four levels: underweight (less than the 5th percentile for sex and age), normal weight (between the 5th and 85th percentile), overweight (between the 85th and 95th percentile), and obese (above the 95th percentile).

RESULTS

Of the total sample, 47.3% (25,852) were boys. The weighted prevalence of suicidal ideation among Chinese adolescents is 15.7% (14.6% in boys and 17.3% in girls). After adjusting for demographics, smoking, drinking, and depressive symptoms, our final multivariate logistic regression models demonstrated that only boys identified as underweight (Adjusted odds ratio [AOR] = 1.23, 95% CI = 1.06-1.44) or obese (AOR = 1.19, 95% CI = 1.02-1.38) were at a higher risk of suicidal ideation. Additionally, the association between weight status and suicidal ideation among boys might be moderated by academic pressure, smoking, and depressive symptoms.

CONCLUSIONS

There was a significant J-shaped association between relative body weight and suicidal ideation in boys. The child's sex should be taken into consideration when developing interventions against unhealthy weight and suicidal ideation.

Psychometric properties of the Weight Self-Stigma Questionnaire (WSSQ) among a sample of overweight/obese French-speaking adolescents

PURPOSE

The Weight Self-Stigma Questionnaire (WSSQ) was recently developed to assess the internalization of weight stigma among English-speaking overweight and obese adults. The objective of the present study was to develop and examine the psychometric properties of a French version of the WSSQ, as well as its applicability to adolescents.

METHODS

The sample comprised 156 overweight and obese adolescents (81 boys, 75 girls, M_age = 16.31). The factor validity and the convergent validity of the French version of the WSSQ were examined using a confirmatory factor analysis and a structural equation model, respectively.

RESULTS

The a priori two-factor structure of the WSSQ and the composite reliability of its subscales (self-devaluation and fear of enacted stigma) were supported. Convergent validity analyses revealed that both WSSQ subscales were significantly and (a) negatively correlated with measures of self-esteem and physical appearance, and (b) positively correlated with measures of anxiety, depression, fear of negative appearance evaluation, and eating-related pathology (fear of getting fat, eating-related control, food preoccupation, vomiting-purging behaviors, and eating-related guilt subscales). However, no significant relation was found between the WSSQ subscales and body mass index.

CONCLUSION

These results suggest that the French version of the WSSQ has acceptable psychometric properties and can be used to assess weight self-stigma among overweight and obese adolescents.

The Role of BMI Group on the Impact of Weight Bias Versus Body Positivity Terminology on Behavioral Intentions and Beliefs: An Experimental Study

This experimental study investigated the role of BMI on the impact of weight bias vs body positivity terminology on behavioral intentions and beliefs about obesity. Participants (n = 332) were randomly allocated to two conditions to receive a vignette depicting an image of a person with obesity using either weight bias (n = 164) or body positivity (n = 168) terminology. Participants were divided into three groups based upon their BMI category (normal weight n = 173; overweight n = 92; obese n = 64). They then completed measures of behavioral intentions, obesity illness beliefs, and fat phobia. Although there were several differences in beliefs by BMI group, the results showed no differences between weight bias or body positivity terminology on any measures. There were, however, significant BMI group by condition interactions for beliefs about obesity relating to personal control and treatment control. Post hoc tests showed that weight bias resulted in reduced personal control in the obese BMI group compared to other participants. Weight bias also resulted in higher personal control over obesity in normal weight individuals compared to body positivity. People with obesity reported higher treatment control when exposed to weight bias compared to overweight participants, whereas normal weight participants reported greater treatment control when exposed to body positivity compared to both other groups. To conclude, the impact of weight bias and body positivity information is not universal and varies according to the BMI of the audience and the outcome being measured; whereas people of normal weight may benefit from weight bias there is no evidence that obese people benefit from body positivity. Implications for the prevention and treatment of obesity are discussed.

The Healthy Weights Initiative: results from the first 2,000 participants

BACKGROUND

A free, comprehensive, adult obesity reduction program was initiated in the cities of Moose Jaw and Regina, Saskatchewan, Canada.

OBJECTIVE

This study aimed to determine the short-term and long-term adherence outcomes, identify factors that impact long-term adherence, and measure health outcomes.

METHODS

The Healthy Weights Initiative (HWI) attendance was determined by using an electronic swipe card. An on-site exercise therapist also documented physical activity, duration, and intensity, as well as attendance of dietary and cognitive behavioral therapy education classes. Logistic regression determined which factors were associated with long-term adherence (exercising three times per week at 1 year) and various health outcomes.

RESULTS

In this study, 2,167 participants started and 2,000 completed the 24-week program (92.3%). Upon 24-week completion, the majority of the participants in Moose Jaw (59.0%) and Regina (63.1%) purchased 1-year fitness memberships at the YMCA. At 1 year, 79.8% of the participants were exercising three times a week or more at the Moose Jaw YMCA. Logistic regression revealed that participants who did not exercise three times a week at 1 year at the YMCA were more likely to have a spouse/partner who did not support the program (OR=2.01; 95% CI=1.81-2.22) and more likely to have a medical comorbidity (OR=1.22; 95% CI=1.03-1.49). At 24 weeks, average weight loss was modest (12.7 pounds) and regressed slightly at 1 year (10.4 pounds). However, at 24 weeks, many health gains were statistically significant and were maintained for 1 year. For example, the prevalence of depressed mood reduced from 49.0% at baseline to 13.0% at 24 weeks and increased to 19.0% at 1 year (P=0.000). Conclusion: We found that the availability of a community-based weight management program (Healthy Weights Initiative) demonstrated good adherence, modest weight loss, and positive health outcomes.

A Qualitative Exploration of Weight Bias and Quality of Health Care Among Health Care Professionals Using Hypothetical Patient Scenarios

The purpose of this study was to determine whether weight bias exhibited by health care professionals (HCPs) impacts quality of health care provided to individuals with obesity. HCPs (n = 220; 88% female, 87% nurses) in the Midwest region of the United States were recruited to complete an online survey. In this within-subjects study design, participants completed the Attitudes Towards Obese Persons (ATOP) scale to assess weight bias and responded to 2 (1 person with obesity and 1 person without obesity) hypothetical patient scenarios to evaluate quality of care. A median split was calculated for ATOP scores to divide participants into high or low weight bias groups. Within these groups, thematic analysis was used to uncover themes in quality of care based on participants' responses to each scenario. The analysis revealed that HCPs in the high weight bias group gave specific diet and exercise recommendations, offered health advice regarding weight loss, and used less teaching discourse when responding to the patient with obesity. In addition, in both weight bias groups, patients with obesity were started on pharmaceutical therapies sooner. The findings of this study suggest a need to educate HCPs on the importance of empathy and compassion when providing treatment to all patients, regardless of weight, to increase quality of care and ultimately improve patient outcomes.

The Mediational Effect of Weight Self-Stigma in the Relationship between Blatant and Subtle Discrimination and Depression and Anxiety

Obesity may be considered a social stigma. In addition, people with obesity are frequently aware of stigma directed at others who have a similar weight and come to think stigmatized thoughts about themselves. Our study focused specifically on how blatant and subtle discrimination and weight self-stigma are related to depression and anxiety in people with obesity. The sample comprised 170 participants from the Clinical Nutrition Unit of the "Hospital de Valme" (Seville, Spain). The Weight Self-Stigma Questionnaire, the Multidimensional Perceived Discrimination Scale, and the Hospital Anxiety and Depression Scale were used. It was found that blatant and subtle discrimination and weight self-stigma were positively related to depression (.31, .38, and .45 respectively) and anxiety (.30, .36, and .49 respectively; all ps < .01). The path analysis conducted showed that there was a mediational effect of weight self-stigma between blatant (β = .36) and subtle discrimination (β = .40) and depression (β = .24) and anxiety (β = .49; all ps < .01). According to these results, it can be said that weight self-stigma was a full mediator in the model found because the relationships between the independent and the dependent variables were non-significant. Finally, results are discussed in the frame of the obesity stigma literature, and some clinical implications of the results of the study are suggested.

Weight Bias: A Systematic Review of Characteristics and Psychometric Properties of Self-Report Questionnaires

BACKGROUND

People living with overweight and obesity often experience weight-based stigmatization. Investigations of the prevalence and correlates of weight bias and evaluation of weight bias reduction interventions depend upon psychometrically-sound measurement. Our paper is the first to comprehensively evaluate the psychometric properties, use of people-first language within items, and suitability for use with various populations of available self-report measures of weight bias.

METHODS

We searched five electronic databases to identify English-language self-report questionnaires of weight bias. We rated each questionnaire's psychometric properties based on initial validation reports and subsequent use, and examined item language.

RESULTS

Our systematic review identified 40 original self-report questionnaires. Most questionnaires were brief, demonstrated adequate internal consistency, and tapped key cognitive and affective dimensions of weight bias such as stereotypes and blaming. Current psychometric evidence is incomplete for many questionnaires, particularly with regard to the properties of test-retest reliability, sensitivity to change as well as discriminant and structural validity. Most questionnaires were developed prior to debate surrounding terminology preferences, and do not employ people-first language in the items administered to participants.

CONCLUSIONS

We provide information and recommendations for clinicians and researchers in selecting psychometrically sound measures of weight bias for various purposes and populations, and discuss future directions to improve measurement of this construct.

Future research in weight bias: What next?

The 2015 Canadian Weight Bias Summit disseminated the newest research advances and brought together 40 experts, stakeholders, and policy makers in various disciplines in health, education, and public policy to identify future research directions in weight bias. In this paper we aim to share the results of the Summit as well as encourage international and interdisciplinary research collaborations in weight bias reduction. Consensus emerged on six research areas that warrant further investigation in weight bias: costs, causes, measurement, qualitative research and lived experience, interventions, and learning from other models of discrimination. These discussions highlighted three key lessons that were informed by the Summit, namely: language matters, the voices of people living with obesity should be incorporated, and interdisciplinary stakeholders should be included.

Impact of Perceived Weight Stigma among Underserved Women on Doctor-Patient Relationships

Objective

The aim of this study was to evaluate how perception of weight stigma among underserved women with obesity impacts doctor–patient relationships.

Methods

This study consisted of an interviewer‐administered survey of 149 women with obesity (body mass index (BMI) > 30 kg m⁻²) immediately after their physician visit at four Federally Qualified Health Centers. Perceptions of weight stigma and physician empathy were measured using the Stigma Situations in Health Care instrument and Consultation and Relational Empathy (CARE) measure, respectively. Associations of CARE and Stigma scores with BMI and patient characteristics were analysed using Mantel–Haenszel chi‐squared test and ordinal logistic regression.

Results

The mean CARE score was 42.1 (standard deviation 8.4; range 11.0–50.0), and mean stigma score was 4.6 (standard deviation 7.6; range 0–43.0). Each increase in BMI category was associated with almost twofold increased odds of higher perception of stigma (odds ratio, 1.90, 95% confidence interval 1.30–2.78, P = 0.001). BMI was not associated with CARE. However, for each increase in stigma category, the odds of lower CARE score doubled (odds ratio, 0.52, 95% confidence interval 0.36–0.75, P = 0.0005).

Conclusions

While BMI was not associated with perception of physician empathy, higher frequency of weight stigmatizing situations was negatively associated with perception of physician empathy. Reducing weight stigma in primary care could improve doctor–patient relationships and quality of care in patients with obesity.

Weight stigma and eating behavior: A review of the literature

Weight stigma is a pervasive social problem, and this paper reviews the evidence linking weight stigma to eating behavior. Correlational studies consistently find that experiences with weight stigma are associated with unhealthy eating behaviors and eating pathology (such as binge eating, skipping meals), although results vary somewhat depending on the sample being studied and the specific stigma/eating constructs being assessed. Experimental studies consistently find that manipulations such as priming overweight stereotypes, exposure to stigmatizing content, and social exclusion all lead to increased food intake, but whether or not those manipulations capture the impact of weight stigma experiences per se is less clear. Finally, studies of stigma experiences in daily life show that more frequent stigma experiences are associated with decreased motivation to diet and with less healthy eating behaviors. Overall, this research highlights the potential for weight stigma to negatively impact individuals' eating behavior, which in turn could have consequences for their overall health and well-being.

Obesity and discrimination - a systematic review and meta-analysis of observational studies

BACKGROUND

Research on obesity has shown that stigma often accompanies obesity and impacts many life domains. No previous research has systematically reviewed published literature about the prevalence and the nature of perceived weight discrimination in individuals with obesity. This systematic review and meta-analysis aims to fill that gap.

METHODS

A systematic literature search was conducted without time limits using the databases Medline, ISI Web of Knowledge and the Cochrane Library. Meta-analyses were performed using random effect models. Observational studies pertaining to (i) prevalence estimates and (ii) forms of perceived weight discrimination among individuals with obesity were included.

RESULTS

Of 4393 citations retrieved, nine citations retrieved, nine studies met inclusion criteria. Pooled prevalence was 19.2% (95% confidence interval (CI) 11.7 to 29.8%) for individuals with class I obesity (Body mass index [BMI] = 30-35 kg m(-2) ) and 41.8% (95% CI 36.9 to 46.9%) for individuals with more extreme obesity (BMI > 35 kg m(-2) ). Findings from nationally representative US samples revealed higher prevalence estimates in individuals with higher BMI values (BMI > 35 kg m(-2) ) and in women.

CONCLUSIONS

The results provide evidence that perceptions of weight discrimination by individuals with obesity were common, and its negative consequences are highly relevant issues within society and need to be the focus of potential interventions. © 2015 World Obesity.

The source and impact of appearance teasing: an examination by sex and weight status among early adolescents from the Czech Republic

BACKGROUND

Some adolescents are victims of negative appearance-related feedback, and this may have lasting adverse effects on their self-evaluation. The aim of this study was to examine the frequency and impact of appearance teasing across sex and weight status.

METHODS

The participants were 570 Czech adolescents (47.9% girls) evaluated at age 13 during the European Longitudinal Study of Pregnancy and Childhood. Instruments used were body mass index and an adapted version of the Physical Experiences Survey that measures appearance teasing sources (parents, peers, among others), body part teased, and the impact of teasing. Chi-square test and multivariate analyses of variance were conducted to compare groups by sex and weight status. Logistic regression was then used for adjusted analyses.

RESULTS

Girls were more likely to report appearance teasing than boys. Overweight adolescents, both girls and boys, were more likely to be teased than non-overweight adolescents. Overweight adolescents compared with non-overweight adolescents reported higher levels of impact of body-related teasing.

CONCLUSIONS

Czech adolescents continue to adopt the societal standards of Western countries, stigmatizing overweight peers. This may affect more obese adolescents. Future research has to evaluate different sources of appearance-related teasing. Interventions in schools are suitable for the reduction of appearance-related prejudices.

Measuring internalized weight attitudes across body weight categories: validation of the modified weight bias internalization scale

The purpose of this research was to validate a modified version of the Weight Bias Internalization Scale (WBIS-M) that is applicable to individuals across different body weight statuses. One hundred forty-eight men and women completed an online survey that included the WBIS-M and relevant measures of psychopathology. Results indicated that the WBIS-M had high internal consistency and strong construct validity. The WBIS-M also demonstrated significant correlations with body image, eating pathology, self-esteem, and symptoms of anxiety and depression, and was associated with these outcomes distinctly from antifat attitudes and body mass index. Implications for the use of this scale in diverse samples are discussed.