Actual Body Mass Research Articles

Body Size Perceptions Associated with Body Mass Index and Weight Loss Intentions Among Two Immigrant Populations.

The rates of obesity among immigrant populations within the USA rise with increasing duration of residency. The aims of this study were to examine weight self-perception and body image discrepancy within a large community sample of Hispanic and Somali predominantly immigrant adults. Utilizing a community-based participatory research (CBPR) approach to collect survey data from a sample of adults who self-identified as Hispanic, Latino, or Somali in Southeast Minnesota. Correlations among actual body mass index (BMI), perceived weight category, and perceived body size were assessed with Spearman rank correlation coefficients. Associations of weight loss intentions with actual BMI, perceived weight category, perceived body size, and body image discrepancy were assessed using Kruskal-Wallis nonparametric tests. A total of 1256 adults completed the survey and biometric measurements (610 Hispanic, 646 Somali); 81% (457) and 50% (328) had a BMI in the overweight or obese category in the Hispanic and Somali cohorts, respectively. Among participants with a BMI of > 25, more participants reported a perceived body size that was overweight or obese than a perceived weight category that was in the overweight or obese category (79% vs. 48%, p = < 0.0001). Body image discrepancy, but not actual BMI, was associated with weight loss intentions for both groups. Perceived body size and perceived weight category were associated with weight loss intentions for Hispanic participants only. Perceived body size is a more accurate self-report proxy of BMI-defined weight status compared with the perceived weight category among Hispanic and Somali immigrant groups. Body image discrepancy may be more predictive of weight loss intentions than actual BMI.

The COVID-19 Experience in Adolescents: Emotional and Behavioral Recall at the End of the Pandemic.

The COVID-19 pandemic and the resulting lockdown countermeasure may have significantly affected adolescents' physical and mental health. This study aims to assess adolescents' recollections of this period, also analyzing their current weight status along with factors they traced back to the epidemic phase and their current sports practice. A survey among 233 Italian adolescents aged 12.4 ± 0.9 years was conducted in October 2023. To achieve the research objectives, a new questionnaire was developed: the COVID-19 AdolesceNt/chilDren Lockdown Experience questionnaire (CANDLE). The new questionnaire was employed to gather data on the adolescents' recollections of the lockdown situation they experienced. The stature and weight of participants were measured directly. The results indicated that middle schoolers remember both positive and negative experiences of the lockdown: the change perceived as the most positive was spending more time with family, while social detachment from peers represents the most negative aspect. According to multivariate regression analysis, certain behaviors they assumed during the lockdown, such as comfort food consumption in boys and sleeping disturbances in girls, in addition to their current sports practice, affected their actual Body Mass Index. This study supports the evidence that changes caused by the COVID-19 lockdown affected adolescents' physical and mental health, albeit with sex differences.

Tidal volume selection in volume-controlled ventilation guided by driving pressure versus actual body weight in healthy anesthetized and mechanically ventilated dogs: A randomized crossover trial

ObjectiveTo compare static compliance of the respiratory system (CstRS) and the ratio of partial pressure of end-tidal to arterial carbon dioxide (Pe′CO2/PaCO2), in healthy dogs using two approaches for tidal volume (VT) selection during volume-controlled ventilation: body mass based and driving pressure (ΔPaw) guided. Study designRandomized, nonblinded, crossover, clinical trial. AnimalsA total of 19 client-owned dogs anesthetized for castration and ovariohysterectomy. MethodsAfter a stable 10 minute baseline, each dog was mechanically ventilated with a VT selection strategy, randomized to a constant VT of 15 mL kg–1 of actual body mass (VTBW) or ΔPaw-guided VT (VTΔP) of 7–8 cmH2O. Both strategies used an inspiratory time of 1 second, 20% end-inspiratory pause, 4 cmH2O positive end-expiratory pressure and fraction of inspired oxygen of 0.4. Respiratory frequency was adjusted to maintain Pe′CO2 between 35 and 40 mmHg. Respiratory mechanics, arterial blood gases and Pe′CO2/PaCO2 were assessed. Continuous variables are presented as mean ± SD or median (interquartile range; quartiles 1–3), depending on distribution, and compared with Wilcoxon signed-rank tests. ResultsThe VT was significantly higher in dogs ventilated with VTΔP than with VTBW strategy (17.20 ± 4.04 versus 15.03 ± 0.60 mL kg–1, p = 0.036). CstRS was significantly higher with VTΔP than with VTBW strategy [2.47 (1.86–2.86) versus 2.25 (1.79–2.58) mL cmH2O−1 kg–1, p = 0.011]. There were no differences in Pe′CO2/PaCO2 between VTΔP and VTBW strategies (0.94 ± 0.06 versus 0.92 ± 0.06, p = 0.094). No discernible difference in ΔPaw was noted between the strategies. Conclusions and clinical relevanceWhile no apparent difference was observed in the Pe′CO2/PaCO2 between the VT selection strategies employed, CstRS significantly increased during the VTΔP approach. A future trial should explore if VTΔP improves perioperative gas exchange and prevents lung damage.

Association between body weight perception and actual body mass index among adult women in Erbil city, Iraq

BackgroundThe misperception of body weight can significantly affect individuals' health behaviors, such as physical activity, diet, and weight management. This study aimed to examine the association between body weight perception and actual body mass index (BMI) among adult women and explore the factors influencing this relationship.MethodsFive hundred forty female individuals aged 18–65 participated in this cross-sectional study. The validated Global Physical Activity Questionnaire was used for data collection. The BMI of the participants was calculated from measured body weight and height. Body weight perception was assessed using a single questionnaire item. The association of BMI and body weight perception was assessed, and the result was categorized as underestimation, consistency, and overestimation. The Chi-square test was used to assess the association between the consistency of BMI and body weight perception by different sociodemographic factors. The kappa test was used to analyze the consistency of BMI and body weight perception.ResultsOf the 540 participants, 13.3% underestimated their body weight status, 79.1% accurately perceived their body weight status, and 7.6% overestimated their body weight status. Unmarried women (11.7%) were more likely than ever married (4.3%) to overestimate their body weight (p = 0.005). On multiple logistic regression, being unmarried (OR = 1.68 (95%CI 1.01–2.80)) was significantly associated with body weight misperception. Body weight perception and BMI categories showed a significantly good consistency (kappa = 0.612, p < 0.001). Correct perception of body weight was highest among the overweight, followed by normal weight and underweight individuals (82.1%, 75.8%, and 72.2%, respectively).ConclusionBody weight perception was well associated with actual body weight status. Unmarried women are more likely to misperceive body weight, particularly overestimating it. Underestimation of body weight was relatively high and much higher than the overestimation, which might keep obese individuals from weight loss activities. Preventing obesity should include awareness about body weight misperceptions.

Body Shape Perception in Relation to the Apparel Choices of the Young and Late Adult Women of Peshawar

The current study was conducted to examine how young and older women in the Peshawar city perceive their body image which influences their clothing choices. The selected sample of women whose age ranged between 20-50 years were evaluated by using the Stunkard body image measure. The correlation between actual body mass index (BMI) and perceived body image was significant indicated by 39% of female population having a favorable impression of their bodies. Women with a poor body image often use clothing to camouflage their protruding body parts. Positive body image leads to a preference for fitting clothing, while negative body image favors loose-fitting clothing. The study also examined the impact of patterns on women's body image, finding that women enjoyed all types of prints in their attire. The study would be distinctive in the field of fashion industry which enable a woman in identifying real body image (BMI) and perceived body image, hence help in designing attires to camouflage minor flaws.

141-OR: Discrepancy between Genetically-Predicted and Actual Body Mass Index Predicts Incident Diabetes Mellitus

Background: Body mass index (BMI) is a key predictor of metabolic disorders including type 2 diabetes mellitus (T2D). Polygenic risk scores (PRS) derived from genome-wide association studies (GWAS) can predict BMI based on common variants, and genetically-predicted BMI (BMI-pred) could serve as a threshold for personal fat storage. We hypothesized that difference between BMI-pred and actual BMI (BMI-diff) could reflect severity of environmental factors affecting BMI and may predict incident T2D. Methods: From the UK Biobank cohort, we selected participants of white British descent without a history of T2D (n=383,160). The PRS for BMI was calculated using polygenic prediction via Bayesian regression and continuous shrinkage priors (PRS-CS) with summary statistics from the Genetic Investigation of ANthropometric Traits consortium GWAS. According to the BMI-diff, the 10-year risk of T2D was assessed using multivariable Cox proportional-hazards model. Results were validated in an independent cohort from South Korea (n=8,840). Results: Participants (mean age 56.8 ± 8.0, male 45.3%) were randomly divided into train (n=268,041) and test set (n=115,119) to establish BMI-pred using PRS-CS. In the test set, the BMI-pred could explain 7.1% of the variance of BMI and T2D occurred in 3,599 (3.1%) cases during 10-year follow-up. The risk of T2D increased linearly according to the decrease of BMI-diff. Participants in the higher quintiles of BMI-diff (more obese than genetically-predicted), had significantly higher risk of T2D than those in the lowest quintile (less obese than genetically-predicted) regardless of their own BMI: adjusted HR (aHR) of 1st quintile 1.61, 95% confidence interval (CI) 1.26-2.05, P &amp;lt;0.001; aHR of 2nd quintile 1.48, 95% CI 1.21-1.81, P &amp;lt;0.001. Results were consistent when validated in the South Korean cohort. Conclusion: Deviation of actual BMI from BMI-pred which reflects severity of environmental factors is a significant predictor of incident T2D. Disclosure T.Rhee: None. H.Lee: None. J.Choi: None. J.S.Lee: None. S.Kwak: None. K.Park: None.

The Reliability and Validity of Recalled Body Shape and the Responsiveness of Obesity Classification Based on Recalled Body Shape Among the Chinese Rural Population.

BackgroundThe reliability and validity of recalled body shape were unknown in China. This study was conducted to examine the reliability and validity of recalled body shape as well as the responsiveness of obesity classification by recalled body shape among the Chinese rural population.MethodsA total of 166 people from the Henan rural cohort were enrolled. The Spearman's correlation coefficient (SCC), intraclass correlation coefficient (ICC), and Cronbach's α were calculated to assess the reliability and validity of recalled body shape. Additionally, the receiver operator characteristic curve (ROC) was performed to assess the responsiveness.ResultsThe SCC between the twice recalled body shape ranged from 0.383 to 0.578, and the ICC ranged from 0.357 to 0.615. Besides, the Cronbach's α of the recalled body shape questionnaire was 0.845. At the age of 20–70, the SCC between recalled body shape and actual body mass index (BMI) and waist circumference (WC) ranged from 0.563 to 0.699 and 0.409 to 0.661, respectively. Furthermore, above the age of 20, the area under the curve (AUC) of classifying general obesity and abdominal obesity by recalled body shape ranged from 0.833 to 0.960 and 0.686 to 0.870, respectively.ConclusionThe results indicated that recalled body shape had moderate reliability, validity, and discriminative degree for earlier obesity among the Chinese rural population.

Calculation of basal metabolic rate in patients with morbid obesity treated in spa conditions.

The present study aimed to calculate the basal metabolic rate (BMR) with the Mifflin equation based on the expected body mass for normal body mass index (BMI) values in obese patients treated in spa conditions. Patients with morbid obesity (BMI > 40 kgm-2 ) and non-obese controls (BMI < 30 kgm-2 ) were recruited. In total, 104 patients with morbid obesity (mean BMI ± standard deviation, 46.9 ± 2.1 kgm-2 ) treated in spa conditions and 90 non-obese controls (mean BMI, 28 ± 1.3 kgm-2 ) were included in the present study. The mean BMR calculated based on actual body mass was 2088 ± 303 kcal in patients with morbid obesity and 1424 ± 268 kcal in non-obese controls. The BMR calculated based on expected body mass for normal BMI decreased significantly in patients with morbid obesity (p < 0.01), but not in non-obese controls. Accordingly, energy expenditure and planned caloric intake was significantly lower when BMR was calculated based on expected body mass rather than actual body mass in patients with morbid obesity, but not in non-obese controls (p < 0.01). Expected body mass for normal BMI should be used to calculate the BMR in patients with morbid obesity.

Prevalence, patterns, and determinants of body image dissatisfaction among female undergraduate students of University of Delhi.

ABSTRACTBackground:Body image is an essential aspect of young girls’ self-definition and individual identity and is influenced by multitude of factors including cultural, social, cognitive, affective, and biological. In recent times, excessive concern about the body image has been reported and the prevalence of body image dissatisfaction (BID) has increased among adolescent and young girlsObjectives:The objective of this study was to estimate the prevalence of BID, its pattern and the factors associated with it among female undergraduate students and also to assess the level of concern about their body imageMethods:This cross-sectional study was conducted among 180 female undergraduate students using a contour drawing rating scale and a body shape questionnaire to assess BID and its pattern, and the level of concern about body image, respectively. Binary logistic regression was applied to identify the factors determining body image perceptionResults:The prevalence of body mage dissatisfaction was 76.7% with overweight and obesity, and media influences being significantly associated with it. Nutritional status, mother’s educational status, and media influences were the determinants. Body shape concerns were found among 30.6% of the participants out of which 7.3% reported marked to moderate concernsConclusions:Our findings highlighted a higher prevalence of perceived dissatisfaction with the body image and also that it is not simply the outcome of sociocultural pressure to conform to a certain body type but is the result of a complex interaction between individual differences in actual body mass and preference for a thin body ideal.

Associations of Body Dissatisfaction With Lifestyle Behaviors and Socio-Demographic Factors Among Saudi Females Attending Fitness Centers.

ObjectiveTo examine body image perception and the associations of body dissatisfaction (BD) with socio-demographic and lifestyle factors among Saudi women attending fitness centers in Riyadh.MethodsSaudi females aged 16 years and older were recruited from 12 randomly selected fitness centers in Riyadh, using stratified clustered sampling technique (n = 460). Height and weight were measured to calculate actual body mass index (BMI). A previously validated instrument was used to collect socio-demographic and lifestyle variables including physical activity (PA), sedentary behaviors, sleep and dietary habits. Stunkard Figure Rating Scale silhouettes were used to assess perceived and desired body shape.ResultsThe participants had a mean (SD) age of 29.2 (8.2). The majority were not married (57%), with no children (66%) and had college degrees (78%). While 63% were overweight or obese, nearly 40% of women underestimated their perceived body shape. The majority of respondents (87%) were dissatisfied with their body shape including 68% of normal weight women. Females who had BD were significantly older, had higher BMI, reported more weight loss attempt and had expended less time in vigorous (p = 0.033) and total (p = 0.042) PA than those who were satisfied with their body shape. However, when adjusting for socio-demographic variables, logistic regression analysis revealed significant associations of BD with higher BMI, shorter membership duration of fitness club, and reduced dairy products and energy drinks consumption.ConclusionExcept for BMI and decreased dairy products and energy drinks consumption, many lifestyle behaviors did not associate with BD among Saudi females attending fitness centers. The findings can inform healthcare providers when intervention strategy is implicated for females with BD. Future studies should compare the associations of BD with lifestyle behaviors between males and females attending fitness centers and seeking weight loss.

Relationships between Body Weight Perception and Weight Management: Practices among Adolescents

Background and Objectives: Overweight and obesity are highly prevalent in western countries and growing problems in developing countries. Weight loss behaviors are highly prevalent among adolescents, and body weight perception motivates weight control practices. The aim of this study is to investigate the relationships between actual body weight, body weight perception, and weight control practices among adolescents.&#x0D; Material and methods: A questionnaire-based survey was used to collect data on anthropometric measurements, demographic information, weight perception and weight control practices from a sample of 200 male and female students (89 boys and 111 girls) aged between13 and19 year old. The association between weight loss attempts and socio demographic factors, weight status and the weight perception were analyzed. Multivariable logistic regression analyses were performed to examine the predictors of misperception and its association with weight-related behaviors. Cohen's kappa was calculated to analyze the accuracy of body weight perceptions.&#x0D; Results: This study revealed that prevalence of underweight was higher in girls than boys. In this study, 8% were underweight including 3.5% severely underweight, 23.5% were overweight, 6% were obese and the rest of the participants (59%) were of normal weight. Only 61.5% respondents perceived their weight correctly. Perception of 21.5% adolescents was underestimated and 16.5% were overestimated than their actual weight status. Almost one third of the respondents were in weight control interventions. Almost 11% boys and 33% girls attempted weight loss activities. The gender biasness was seen in weight control (statistically significant ,p value =0.003). Body weight perception was found significant (p value, 0.001) in relation to weight control behavior.&#x0D; Conclusion: Body weight perceptions are not in agreement with actual weight in adolescents. This discrepancy is more marked in females who use a variety of weight control behaviors. These behaviors are motivated more apparently by perceived weight rather than actual body mass index.

Evaluation of Nutritional Status of Colorectal Cancer Patients from Algerian East Using Anthropometric Measurements and Laboratory Assessment.

Background:Chemotherapy may lead to cancer patient malnutrition, associated with reduced response, and increased complications to anticancer therapy. This study aimed to evaluate the nutritional status of Algerian colorectal cancer patients.Methods:This cross-sectional study was conducted during 2016–2017 at the Oncology departments from the Algerian East included 90 patients with colorectal cancer. For each patient, a questionnaire, anthropometric measurements and biochemical tests have been done.Results:The 50–59 yr and 60–69 age groups represented more than half of the population. Obesity and underweight were significantly higher in female patients according to their actual Body mass index (BMI). Prevalence of underweight increased after cancer diagnosis, while obesity prevalence has decreased significantly. The malnutrition classification based on Mid-upper-arm muscle circumference (MUAMC) and the triceps skinfold thickness (TST) has shown a significant higher prevalence of malnutrition among male patients than females. The classification of Nutrition risk index (NRI) has shown a significant high percentage of male patients having malnutrition. In our study, no significant differences were recorded for biochemical tests. Anemia recorded the higher prevalences for both sex compared to other deficiency. Hypoironemia prevalence’s was higher among male patients than females while hypokalemia and hypoproteinemia prevalence’s were higher in female patients.Conclusion:Malnutrition in CRC patients must be combated by early detection to decrease complications associated to cancer and chemotherapy.

Validity of Recreational Marathon Runners' Self-Reported Anthropometric Data.

While studies on large samples of recreational runners have often relied on participants' self-reported height and body mass, the validity of these data have not been investigated for this population. Hence, this study sought to examine the validity of self-reported anthropometric measures among recreational marathon runners. Female (n = 32) and male (n = 135) recreational marathon runners were requested to estimate their body mass and height (and we calculated their self-reported body mass index [BMI]), after which we took actual measures of their body mass and height and calculated their actual BMI. Participants' self-reported values underestimated their actual body mass by 0.65 kg (p < .001, η2 = 0.222) and their actual BMI by 0.35 kg ⋅ m-2 (p < .001, η2 = 0.245). There was a significant Assessment Method × Sex Interaction for both body mass (p = .019, η2 = 0.033) and BMI (p = .017, η2 = 0.034), as women underestimated body mass values more than men. Participants overestimated their height by 0.44 cm (p < .001, η2 = 0.075), but the interaction of sex and assessment method for height was not statistically significant. Underestimates of body mass correlated with marathon racing speed (r = .24, p = .006) and body fat percentage (r = -.29, p = .001) in men, but not in women (p > .05). The disagreement between self-reported and measured anthropometric data in the present sample was lower than has been previously reported for the general population, suggesting that marathon runners may more accurately self-perceive and/or report their anthropometric characteristics. These findings are of practical value for health professionals and researchers (e.g., nutritionists and exercise physiologists) questionnaires to recreational marathon runners.

Distorted body weight perception and its gender differences in middle-aged adults: population based study

BackgroundIncreasing interest in appearance and the growing preference for a beautiful body can lead to physical and psychological problems due to an inappropriate body image perception. As such, there is a need to identify what factors may contribute to an inappropriate body image. The purpose of this study was to examine the presence of distorted body weight perception among middle-aged Koreans and identify gender differences and other factors that contribute to a distorted body image regarding body weight.MethodsData on 8363 middle-aged adults (aged 45–64 years) from the Korea National Health and Nutrition Examination Survey were analyzed using complex samples analysis considering weight, stratification variables, and cluster variables. The difference between perceived body image regarding body weight and actual body mass index was used to assess distorted body weight perception. Socioeconomic status, health behaviors, daily energy consumption, and psychological status (depression and stress) were assessed for their relationship to distorted body weight perception.ResultsResults showed that a distorted body image regarding body weight was more prevalent among middle-aged men (45.3%) than women (25.7%). Age, income, perceived health status, and health behaviors were significantly associated with distorted body weight perception in middle-aged men, whereas psychological factors were associated with distorted body weight perception in middle-aged women.ConclusionsFurther research on distorted body weight perception is needed to gain understanding of the gender differences between middle-aged men and women in Korea. Furthermore, to the results of the study can be used as a basis for developing various education, health mediation, and public health promotion interventions and programs to address body weight perception in middle-aged adults.

1535. Pharmacokinetic (PK) and Pharmacodynamic (PD) Evaluation of Cefepime (CPM) in Obese and Non-Obese Patients

BackgroundAppropriate application of antimicrobial PK/PD properties is crucial to optimizing patient outcomes. Although β-lactams are among the most utilized and effective antibiotics, optimal dosing strategies in obese populations are largely unknown. The objective of this study was to compare PK/PD of CPM in non-obese (NO, weight 80–100 kg) and obese (O, weight > 100 kg) patients.MethodsA prospective comparative PK/PD analysis was conducted in NO and O patients receiving CPM. Blood samples were obtained at 30, 60, 120, 240, 360, and 480 minutes after CPM infusion. CPM concentrations were determined by reversed-phase high-performance liquid chromatography. Non-compartmental PK analyses were performed, followed by Monte Carlo simulations (Oracle Crystal Ball®, 5,000 simulated patients) to estimate probability of target attainment (PTA) against common Gram-negative pathogens. The desired PD target for CPM was % time above MIC of unbound drug (%fT > MIC) ≥ 60%. Chi-squared and Mann–Whitney U tests were used for analysis.ResultsSeventeen patients were enrolled and most (94%) received CPM 2 g q8h. A significant difference in actual body weight and body mass index was observed (P < 0.001). There were no differences in other baseline or PK characteristics between the two groups. Utilizing CPM 2 g q8h, PTA ≥ 90% was not observed for organisms with an MIC of 8 μg/mL, the current CLSI breakpoint for P. aeruginosa and A. baumannii (PTA = 88% vs. 81% in NO and O groups, respectively). With a 6 g continuous infusion (CI), however, ≥ 90% PTA was achieved in both groups (PTA = 100%) for organisms with an MIC of 8 μg/mL, while a regimen of 2 g q8h (infused over 3 hours [EI]) also provided PTA of ≥ 90% in both groups (PTA = 98% vs. 92% in NO and O groups, respectively). Goal PTA was not obtained in either group for organisms with an MIC of 4 μg/mL with CPM 1 g q8h or 2 g q12h (i.e., CLSI recommended dosing for organisms with MICs of 4 μg/mL).ConclusionOptimizing PK/PD parameters through novel dosing strategies are essential in both the NO and O populations for optimal CPM exposure in susceptible pathogens with higher MICs. CPM 6 grams/day by either CI or EI provides more optimal PK/PD characteristics in obese patients for pathogens with MICs at or near the current CLSI-recommended breakpoint. Disclosures All authors: No reported disclosures.

Body Image Disturbance, Weight Perception and Body Mass Index of Female College Students in Delhi having Normal and Disordered Eating Behaviours

Body image and self-perception about weight, irrespective of their actual body mass index, may predispose young females to disordered eating behaviour. A study was conducted to determine body image disturbance, weight perception and body mass index among female college students in Delhi having normal and disordered eating behaviours. The study sample comprised 734 female under-graduate students between 18-21 years from women’s colleges of Delhi University. An interview-cum-questionnaire schedule was used to assess the general profile of subjects and perceptions about their body weight. Adapted Eating Attitudes Test (EAT)-26 and Body Shape Questionnaire (BSQ)-8c was used to determine disordered eating behaviour and body image disturbance among the subjects respectively. Body Mass Index of the subjects was also computed. Findings revealed a significant difference in self-perception about body weight among subjects showing normal and disordered eating behaviours. Higher percentage of subjects from disordered eating group perceived themselves to be either overweight or obese as compared to subjects from normal eating behaviour group.Significantly higher BSQ-8c scores and Body Mass Index were also observed among subjects having disordered eating behaviour. The study indicated that poor body image, self-perception about body weight being high as well as high body mass index played a significant role in occurrence of disordered eating behaviour among female college students in Delhi.The study depicted the urgent need to have appropriate health and nutrition education programmes for female college students to improve their perceptions about body shape and weight to further prevent the occurrence of disordered eating behaviour among them and make them less vulnerable to consequent nutritional problems.

Self-perceptions of body weight status according to age-groups among Korean women: A nationwide population-based survey.

While numerous studies have investigated body image, including body weight perception, most of which have focused on adolescents or young women, few studies have attempted to evaluate body weight perceptions in adult women according to age groups. This study was conducted to investigate the accuracy of self-perceived weight and actual body mass index (BMI) values among adult Korean women according to age. We used data from the 2016 Korean Study of Women’s Health Related Issues, a population-based, nationwide, cross-sectional survey. BMI was calculated from self-reported weight and height. Participants were asked to describe their body image by choosing one of the following descriptions: very underweight, underweight, about right, overweight, or obese. The proportions of women aged 20–29, 30–39, 40–49, 50–59, 60–69, and 70–79 years who underestimated their body weight relative to their actual BMI category were 12.6%, 15.1%, 22.2%, 34.0%, 45.6%, and 50.7%, respectively; those who overestimated their body weight comprised 18.7%, 17.8%, 14.3%, 10.8%, and 7.4%. In all BMI categories, the proportion of those who overestimated their weight status increased as age decreased, while those who underestimated their weight status increased as age increased. After adjusting for possible covariates, age was strongly associated with both underestimation and overestimation. The odds ratio for underestimating one’s weight status among women aged 70–79 yeas was 2.96 (95% CI: 2.10–4.18), and that for overestimation was 0.52 (95% CI: 0.35–0.79), compared to women aged 20–29 years. Age is the most important factor associated with weight perceptions among Korean women, affecting both underestimation and overestimation of weight status.

Body concerns and BMI as predictors of disordered eating and body mass in girls: An 18-year longitudinal investigation.

Body concerns (e.g., body dissatisfaction and weight preoccupation) are well-supported prospective risk factors for the development of eating disorders in women. Body concerns are psychological variables but they are partly based on actual body mass. This study tested whether (a) body concerns predict increases in eating disorder characteristics measured both continuously (via subscale scores on the Minnesota Eating Behavior Survey (MEBS) and categorically (via transition to a probable or definite eating disorder), (b) body concerns predict changes in BMI, and (c) BMI predicts changes in eating disorder symptoms or development of an eating disorder. Beginning with 762 girls at age 11, the MEBS' Body Dissatisfaction (BD) and Weight Preoccupation (WP) scales were used to predict change in the MEBS' Bulimic Behavior scale (the sum of the Binge Eating and Compensatory Behaviors scales), in BD and WP themselves and in BMI over 18 years of follow up. Baseline BMI was also used to predict BMI and MEBS change. Contrary to expectations, BD and WP predicted significantly reduced growth in all MEBS scales and also predicted significantly reduced growth in BMI. BD, WP and BMI did not predict development of an ED. This pattern was strengthened when predictors were measured at age 17 instead of 11. We consider the possibility that the divergence between the current findings and past findings on eating disorder risk factors may stem from the unusually long developmental period studied, ranging from age 11 (or 17) through age 29. Additional longitudinal research that spans a similar developmental period could shed light on the plausibility of this explanation. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Psychometric properties of the Breast Size Rating Scale (BSRS) in Brazilian university women

The present study examined the psychometric properties of a Brazilian Portuguese translation of the Breast Size Rating Scale (BSRS). A total of 194 Brazilian university women completed the BSRS along with measures of body satisfaction, body appreciation, weight discrepancy, and attitudes toward societal appearance ideals. They also had their actual bra size and body mass indices (BMIs) objectively measured. Results indicated evidence of adequate convergent validity insofar as greater breast size dissatisfaction was significantly associated with greater weight discrepancy, higher BMI, lower body appreciation, lower body satisfaction, greater use of information from society about appearance ideals, greater perceived pressure from society about appearance ideals, and greater internalisation of general and athletic appearance ideals, respectively. In our sample, 20.6% of women reported no breast size dissatisfaction, 65.5% desired a larger breast size, and 13.9% desired a smaller breast size. Findings demonstrate that BSRS scores are psychometrically sound and that breast size dissatisfaction is common among Brazilian women.

Use of International Classification of Diseases, Ninth Revision Codes for Obesity: Trends in the United States from an Electronic Health Record-Derived Database.

Obesity is a potentially modifiable risk factor for many diseases, and a better understanding of its impact on health care utilization, costs, and medical outcomes is needed. The ability to accurately evaluate obesity outcomes depends on a correct identification of the population with obesity. The primary objective of this study was to determine the prevalence and accuracy of International Classification of Diseases, Ninth Revision (ICD-9) coding for overweight and obesity within a US primary care electronic health record (EHR) database compared against actual body mass index (BMI) values from recorded clinical patient data; characteristics of patients with obesity who did or did not receive ICD-9 codes for overweight/obesity also were evaluated. The study sample included 5,512,285 patients in the database with any BMI value recorded between January 1, 2014, and June 30, 2014. Based on BMI, 74.6% of patients were categorized as being overweight or obese, but only 15.1% of patients had relevant ICD-9 codes. ICD-9 coding prevalence increased with increasing BMI category. Among patients with obesity (BMI ≥30 kg/m2), those coded for obesity were younger, more often female, and had a greater comorbidity burden than those not coded; hypertension, dyslipidemia, type 2 diabetes mellitus, and gastroesophageal reflux disease were the most common comorbidities. Key findings: US outpatients with overweight or obesity are not being reliably coded, making ICD-9 codes undependable sources for determining obesity prevalence and outcomes. BMI data available within EHR databases offer a more accurate and objective means of classifying overweight/obese status.