Mean Between Body Mass Index Research Articles

Body mass index, regional adipose deposition, and clinical outcomes in non-ischemic dilated cardiomyopathy: a prospective cohort study.

To assess the relationship between body mass index (BMI), subcutaneous adipose tissue (SAT), visceral adipose tissue (VAT), epicardial adipose tissue (EAT), pericardial adipose tissue (PAT) and clinical outcomes in dilated cardiomyopathy (DCM) patients. Non-ischemic DCM patients were prospectively enrolled. Regional adipose tissue, cardiac function, and myocardial tissue characteristics were measured by cardiac magnetic resonance (CMR). The primary endpoint included all-cause mortality and heart transplantation (HTX). This study enrolled 1042 DCM patients (68% men, mean age 48 ± 15 years, mean BMI 23.9 ± 4.0 kg/m2). Underweight patients were more frequently women, had lower blood pressure, worse New York Heart Association (NYHA) class, reduced biventricular ejection fraction, and higher native T1 and extracellular volume fraction (ECV) value. Similarly, reduced regional adipose tissue was associated with adverse heart remodeling, worse cardiac function, and higher diffuse myocardial fibrosis. After a median follow-up of 41 months, primary endpoint occurred in 237 patients. BMI (HR: 0.94, 95% CI: 0.90 - 0.98, P = 0.006), VAT thickness (per 1 mm: HR 0.94, 95% CI: 0.91 - 0.97, P < 0.001), and EAT volume (per 1 mL: HR 0.96, 95% CI: 0.95 - 0.97, P < 0.001) were independent predictors of primary endpoint. EAT volume showed highest predictive value for heart failure death/HTX (C-index: 0.70). BMI was the best predictor of arrhythmia endpoint (C-index: 0.64). Lower BMI and thinner regional adipose tissue represented the worse clinical phenotype and adverse remodeling, and were associated with worse clinical outcomes in patients with DCM.

Association of Body Mass Index and Physical Activity with Psychological Stress among Female Undergraduate Students in Nigeria

Abstract Background: The prevalence of stress among university students has emerged as a significant concern, with notable impacts on their academic performance and overall well-being. Despite the growing body of literature on the association between body mass index (BMI), physical activity (PA), and stress, there is a shortage of research in Nigeria. Objective: This study aimed to investigate the associations of stress with BMI and PA among female students in Nigeria. Materials and Methods: A cross-sectional survey design was employed, and data were collected from a convenience sample of 301 female undergraduate students at a Nigerian university. The Perceived Stress Scale and International PA Questionnaire—Short Form assessed stress and PA. BMI was calculated from the participant’s weight and height. Results: Participants’ mean BMI was 22.5 ± 3.8 with 68.4% falling within the normal BMI range. A greater percentage reported low levels of PA (60.8%) and moderate stress levels (67.4%). There was no significant relationship between BMI and stress (r = −0.090, P = 0.131). However, a low level of PA was associated with increased stress (r = −0.131, P = 0.027). Conclusion: PA significantly influences stress. Universities should facilitate an exercise-friendly environment and encourage PA programs for female students.

Nonparametric Testing of Body Mass Index as a Predictor of Severe Noma: Assessing Potential Association.

Noma, a devastating facial disease, primarily affects impoverished populations in low- and middle-income countries, often leading to severe disfigurement or fatality if untreated. Studies suggest malnutrition is a significant risk factor for noma, yet the association between body mass index (BMI) in kilograms per square meter and tissue damage severity remains underexplored. This study aimed to investigate the relationship between BMI and tissue damage severity among noma cases in Ethiopia. A retrospective analysis of medical records from Facing Africa's database covering noma cases treated between 2007 and 2019 was conducted. A standardized data collection template recorded demographic and clinical data, including patient demographics, BMI, and tissue damage severity levels. JASP statistical software was used for analysis. Analysis of 228 noma cases revealed a mean BMI of 17.8 kg/m2, ranging from 11.5 to 28.3 kg/m2. Females exhibited a higher mean BMI (18.3 kg/m2) than males (16.9 kg/m2). Differences in BMI distributions between major (67) and minor (30) tissue damage categories were observed, with "minor" cases having a slightly higher mean BMI. The study found a statistically significant association between BMI and tissue damage severity (P = 0.03), indicating that tissue damage due to noma worsened as BMI decreased. Nonparametric tests confirmed this association's significance. This study highlights low BMI as a predictor of severe noma. Public health interventions should focus on malnutrition to reduce noma severity and psychosocial and functional morbidity and improve outcomes. However, additional factors influencing the progression of noma and the severity of associated tissue damage require further investigation.

Associations Between Intertemporal Food Choice and BMI in Adult Women: An fMRI Study Using a Quasi-realistic Design.

Impulsivity resulting in unrestrained eating has been implicated as a contributing factor for obesity. Delay discounting (DD) tasks where individuals choose between a smaller immediate reward and a larger delayed reward provide useful data to describe impulsive decision-making and to determine the extent to which delayed rewards are discounted. To study the association between body mass index(BMI) and delay discounting for food and money in adult women. We used a DD task with real food rewards to investigate impulsive decision-making as related to BMI in participants who self-identified as women. Participants in group A had a mean BMI of 21.4 (n = 14), and participants in group B had a mean BMI of 32.2 (n = 14). Each group was tested in a hungry state during a single session. We performed fMRI during a DD task requiring participants to choose between a food item (one sandwich) constituting a smaller immediate reward and multiple food items (two, three, or four sandwiches) constituting a series of larger delayed rewards available at different intervals. The steepness of the discounting curve for food was determined from these decisions. Participants then completed a monetary discounting task to facilitate a comparison of the discounting of food and monetary rewards. Participants in group B discounted food rewards more steeply than monetary rewards. Decisions for delayed rewards led to increased activations of brain areas related to executive control on fMRI, such as the head of the caudate nucleus and the anterior cingulate cortex (ACC) in group A, but not group B participants. Our findings suggest that group B had difficulty deciding against the immediate food rewards due to insufficient recruitment of cortical control areas. Therefore, impulsivity is an important target for behavioral interventions in individuals with obesity.

Abstract 4127562: Age, Adiposity-Related Anthropometrics, and Clinical Outcomes in Heart Failure with Mildly Reduced or Preserved Ejection Fraction: A Participant-Level Pooled Analysis of Randomized Trials

Background: Age has been shown to modify the population-level association between body mass index (BMI) and mortality. However, whether age modifies the association between adiposity-related anthropometrics and adverse outcomes in heart failure (HF) populations has not been systematically explored. Methods: In this participant-level pooled analysis of five international, multicenter, randomized-controlled trials enrolling adults with HF and either mildly reduced or preserved ejection fraction (HFmrEF/HFpEF), the association between age and adiposity-related anthropometrics (BMI, waist circumference [WC], and waist-to-height ratio [WHtR]) and the primary composite outcome of time-to-first HF hospitalization or cardiovascular (CV) death was evaluated using multivariable adjusted Cox proportional hazards models (stratified by treatment and trial) and restricted cubic splines. Results: Among 21,606 participants in the analysis (mean age, 71±9 years; 49% female; 83% White; mean BMI, 30±6 kg/m 2 ), 5,350 (25%) were aged &lt;65 years, 8,273 (38%) were aged 65-74 years, and 7,983 (37%) were aged ≥75 years at baseline. Older individuals were more likely to be female, have lower BMI and WC, and higher left ventricular ejection fraction. Overall, BMI, WC, and WHtR were steeply and non-linearly associated with the primary outcome ( Figure ). Age, as either a categorical or continuous variable, significantly modified the covariate-adjusted association between all anthropometrics and the primary composite outcome ( P ≤0.001 for all) ( Figure ). A J-shaped relationship, characterized by higher incidence of the primary outcome with lower anthropometric values, was observed only for BMI and was substantially attenuated among younger adults. Irrespective of the anthropometric used, increasing adiposity was most steeply associated with primary events among adults aged &lt;65 years. Conclusions: In this pooled analysis of HFmrEF/HFpEF trials, age was a powerful modifier of the relationship between excess adiposity and HF hospitalization or CV death. An “obesity-survival paradox” – observed only for BMI – was not apparent in younger participants, who exhibited the steepest increase in the rate of clinical events with higher adiposity.

Correlation of Lipid Profile and BMI with Fasting Blood Glucose

The prevalence in Libya of overweight people has more than tripled from 19.5% in 1984 to 63.5% in 2009, while the rate of obesity has more than doubled over the past three decades leading to a much higher incidence of Type 2 diabetes T2DM. This makes investigation of links between BMI and lipid profiles in Libyan T2DM patients of vital importance. This study was conducted to determine the cor-relation between body mass index (BMI) and lipid profiles in patients with T2DM attending outpatient clinics in the Diabetes and Endocrinology Centre (Ibn Al-Nafees Hospital) Tripoli, Libya. The second objective was to compare BMI, FBS and lipid profiles between T2DM patients and a control group. The study was carried out during the period of June and July 2024 included 122 T2DM patients and 55 healthy subjects. The subject’s serum was analysed for total cholesterol (TC), triglyceride (TG), high density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C). The possible correlation of BMI with lipid values were analysed. The Pearson’s co-efficient between the BMI and the lipid parameters did not show any significant correlation in T2DM patients. Comparisons of various parameters between T2DM patients and the control group showed that the mean values of fasting glucose levels, weight, BMI, TG, HDL-C and LDL-C were significantly higher in the T2DM group than the control group. There was no correlation found between BMI and lipid profiles in T2DM patients. Type 2 diabetic patients have significantly higher mean weight, BMI, FBS, TG, HDL-C and LDL-C compared with healthy controls

Obesity and overweight are common among hospitalized patients and are associated with specific causes of admission to an internal medicine department: a cross-sectional study.

Data on the prevalence of obesity among hospitalized patients are limited. Our objective was to capture the rates of overweight and obesity among people admitted to an internal medicine department and to explore a potential association between body mass index (BMI) and causes of hospitalization. Demographic and anthropometric parameters and cause of admission were recorded in all patients admitted to our department over a 30-day period. One hundred and eighteen patients with a mean age of 71.84years and a mean BMI of 26.85kg/m2 were included in the analysis. Among study participants, 53.25% were living with overweight and obesity. Patients admitted for hepatobiliary disease had a higher BMI compared to those admitted for other diseases of the gastrointestinal tract (P < 0.001). More than half of patients admitted to an internal medicine department live with obesity or overweight, the specific reasons for admission being associated with a higher BMI.

Body mass index is lower in asymptomatic C9orf72 expansion carriers but not in SOD1 pathogenic variant carriers compared to gene negatives

Objective: To examine the relationship between body mass index (BMI) and genotype among pre-symptomatic carriers of different pathogenic variants associated with amyotrophic lateral sclerosis. Methods: C9orf72+ carriers, SOD1+ carriers, and pathogenic variant negative controls (Gene-Negatives) were included from 3 largely independent cohorts: ALS Families Project (ALS-Families); Dominantly inherited ALS (DIALS); and Pre-symptomatic Familial ALS (Pre-fALS). First reported (ALS-Families) or measured (DIALS and Pre-fALS) weight and height were used to calculate BMI. Age at weight measurement, self-reported sex (male vs. female), and highest education (high school or below vs. college education vs. graduate school or above) were extracted. The associations between BMI and genotype in each cohort were examined with multivariable linear regression models, adjusted for age, sex, and education. Results: A total of 223 C9orf72+ carriers, 135 SOD1+ carriers, and 191 Gene-Negatives were included, deriving from ALS-Families (n = 114, median age 46, 37% male), DIALS (n = 221, median age 46, 30% male), and Pre-fALS (n = 214, median age 44, 39% male). Adjusting for age, sex, and education, the mean BMI of C9orf72+ carriers was lower than Gene-Negatives by 2.4 units (95% confidence interval [CI] = 0.3–4.6, p = 0.02) in ALS-Families; 2.7 units (95% CI = 0.9–4.4, p = 0.003) in DIALS; and 1.9 units (95% CI = 0.5–4.2, p = 0.12) in Pre-fALS. There were no significant differences in BMI between SOD1+ carriers and Gene-Negatives in any of the 3 cohorts. Conclusions: Compared to Gene-Negatives, average BMI is lower in asymptomatic C9orf72+ carriers across 3 cohorts while no significant difference was found between Gene-Negatives and SOD1+ carriers.

Prevalence of Dental Abnormalities, Soft Tissue Pathologies and Occlusion Disorders in Patients with High BMI: A Cross-sectional Study.

The relationship between body mass index (BMI) and oral disorders remains unclear. This study examined the prevalence and types of dental abnormalities and oral mucosal lesions among female students with obesity attending a Taif University sports centre. This non-interventional cross-sectional study enrolled female students with high BMI from a university sports facility using a convivence sampling method. The participants were divided into three BMI groups. Data were collected using an interview and by clinical oral examination. Prevalence and oral disorder types and possible mechanisms linking BMI and dental development were evaluated. Ultimately, 86 female students with obesity were analysed. The mean BMI was 42.8 kg/m2, indicating high obesity levels. A weak although statistically significant correlation was observed between age and BMI (r=0.27), indicating that older students had higher BMI. A statistically significant association was observed between BMI and dental abnormalities (p0.05). The dental abnormality prevalence increased with BMI, ranging from 37.5% to 40.7% in the ≤40 and >45 kg/m2 groups, respectively. Most participants (66.3%) had oral mucosal lesions, with the highest prevalence among participants in the 40-45 kg/m2 group (71.4%). A statistically significant relationship was observed between BMI and dental abnormalities; obesity may negatively affect oral health.

Efficacy and safety of the subcutaneous implantable cardioverter-defibrillator in patients with and without obesity: A meta-analysis

BackgroundThe subcutaneous implantable cardioverter-defibrillator (S-ICD) has emerged as an alternative to transvenous systems for prevention of sudden cardiac death. However, concerns have been raised regarding its efficacy and safety in obese individuals. ObjectiveThe purpose of this study was to perform a meta-analysis to evaluate the efficacy and safety of the S-ICD in patients with obesity by assessing the relationship between body mass index (BMI) and clinical outcomes. MethodsA comprehensive search of multiple databases was conducted for English-language peer-reviewed studies reporting clinical outcomes in S-ICD recipients with (BMI ≥30 kg/m2) and without obesity (BMI <30 kg/m2). Data on preimplantation screening failure, defibrillation testing, complications, appropriate and inappropriate shocks, and survival were analyzed using standard, random-effects, meta-analytical techniques. ResultsTwenty-nine studies involving 20,486 patients were included. There was no statistically significant difference in mean BMI values of patients with failed or successful preimplantation screening (mean difference –0.60 kg/m2; 95% confidence interval [CI] –2.06 to 0.86). Obesity was associated with higher rates of failed defibrillation testing at ≤65 J (odds ratio [OR] 2.16; 95% CI 1.39–3.35), and malpositioning/suboptimal positioning occurred more frequently in obese compared to nonobese patients (OR 3.37; 95% CI 1.76–6.44). Increased BMI as a continuous variable (per increase in 1 kg/m2 BMI) was associated with elevated defibrillation thresholds (OR 1.05; 95% CI 1.03–1.08); higher risk of complications (hazard ratio [HR] 1.04; 95% CI 1.02–1.05); a trend toward an increased number of appropriate shocks (HR 1.02; 95% CI 1.00–1.04); and no significant increase in the risk of inappropriate shocks (HR 1.01; 95% CI 0.99–1.03). ConclusionThis meta-analysis underscores the importance of considering obesity in S-ICD implantation decisions. Although S-ICD remains effective in obese patients, attention to potential technical challenges and higher complication rates is warranted.

RELATIONSHIP BETWEEN BODY MASS INDEX AND FLEXIBILITY OF TRUNK AND HAMSTRING MUSCLES AMONG SCHOOL ADOLESCENTS

Background: The childhood obesity has led to a decrease in physical activity, which may have detrimental effects on overall well-being, including impairment in musculoskeletal flexibility. Joint flexibility, often known as range of motion, is and a component of muscular fitness that essential for performing daily tasks. Considering the major physiological changes that occurs during adolescence have substantial impact on long-term health, this study aimed to investigate the relationship between body mass index (BMI) and the flexibility of the trunk and hamstring muscles among school adolescents. Methods: A total of 143 school adolescents were recruited using a convenience sampling method. The participants’ body composition was measured using the BMI, while the flexibility of the trunk and hamstring muscles was evaluated using the fingertip-to-floor test and the sit-and-reach test, respectively. The Spearman’s correlation coefficient was utilised to examine the relationship between BMI and muscle flexibility. Results: Most of the participants (n = 64, 44.8%) were underweight, with a mean BMI of 20.2 ± 5.2 kg/m2. There were no significant correlations between BMI and muscle flexibility (trunk, p = 0.965; hamstring, p = 0.829). Additionally, there were significant differences between males and females in trunk flexibility (p = 0.04), but not in hamstring flexibility (p = 0.135). Conclusion: There was no association between BMI and muscle flexibility in this study However, male students demonstrate significantly greater trunk flexibility compared to their female peers.

The Association Between BMI and Cardiorespiratory Functions Among Medical Students at Northern Border University.

Cardiorespiratory function is one of the key health indicators that promotegood health. Knowing the correlation between body mass index (BMI) and cardiorespiratory functioning might assist in the creation of evidence-based therapies that focus on addressing difficulties associated with obesity. To assess the correlation between BMI and cardiorespiratory functions among medical students at Northern Border University. A cross-sectional study was conducted among medical students at Northern Border University, Saudi Arabia. The blood pressure (BP), respiratory rate (RR), heart rate (HR), mean arterial pressure (MAP), pulse pressure (PP), and BMI of the students were measured. The mean age of the students was 17.1 ± 1.9 years. Nearly 40% of students were overweight or obese. Our study revealed a significant positive correlation between BMI and BP, RR, tidal volume (TV), and MAP. The correlation analysis of our study revealed a significant positive correlation of BMI with BP, RR, TV, and MAP.

The association between body mass index and physical function in adult burn survivors: A Burn Model System National Database study

IntroductionAn area of rehabilitation research in burns is the impact of co-morbidities on disease trajectory. Obesity is a comorbidity of increasing public health concern, but its role remains controversial regarding burn injury and physical recovery. Our aim was to evaluate the association between body mass index (BMI) categories as a measure of obesity at discharge and self-reported physical function (PF) during recovery of adult burn survivors. MethodsThis is a retrospective study on data collected by four major US burn centers, which contribute to the Burn Model System National Database. The data included BMI obtained at hospital discharge and self-reported PF-mobility, using the PROMIS measures assessed at 6, 12, and 24 months after burn. Subjects were classified into weight status categories based on BMI: underweight (BMI <18.5), normal weight (18.5 ≤ BMI <25), overweight (25 ≤ BMI <30), obesity class 1 (30 ≤ BMI <35), obesity class 2 (35 ≤ BMI <40), and obesity class 3 (BMI ≥40). Mixed-effects linear regression models were used to assess the association between BMI categories and PF scores over time, adjusted for patient and injury characteristics. ResultsA total of 496 adult burn patients aged 47 ± 16 years were included, with mean total body surface area (TBSA) burned of 18 ± 19 % and mean BMI at discharge of 28 ± 7 kg/m2. PROMIS PF scores significantly improved over time in the recovery phase after burn (time effect, p < 0.001). Compared to overweight burn patients, normal-underweights exhibited lower PF score by an average of 4.06 units (p = 0.001) but scores increased linearly by an estimated 0.17 units per month (p = 0.01) over the 24 months after discharge. Similarly, compared to overweight burn patients, class 1 obese reported lower PF score by a mean 2.67 units (p = 0.07) but PF increased linearly by 0.15 units per month (p = 0.07) over the 24 months after discharge. These findings were independent of the effects of age at discharge, sex, TBSA burned, and hand and leg burn. ConclusionBeing overweight was associated with improved and faster recovery of PF scores compared to normal, underweight, and obese burn patients during long-term recovery. Hence, our data suggests that long-term recovery and restoration of PF in adult burn survivors is not compromised by a small excess in body weight.

Relationship between body mass index and degree of adult psoriasis

Because of the current inconsistencies in the association between body mass index (BMI) and psoriasis severity, this study aimed to determine aforementioned association. This analytical observational study was conducted in a private hospital in West Java between August and December 2023 using data from medical records of 108 psoriasis cases recruited by simple random sampling. Data were collected on demographic characteristics (age, gender), BMI, and psoriasis severity. BMI was divided into categories following the WHO Asia Pacific region classification. Psoriasis severity was categorized as mild, moderate, and severe, and determined by means of Psoriasis Area and Severity Index (PASI) scores. Data were analyzed by independent t test and Chi-squared tests. Mean age (± SD) of psoriasis subjects was 40.1 ±12.4 years, the most frequent gender was female with 73 (67.6%) subjects, and mean BMI was 25.2 ± 3.3 kg/m2. Fifty-six (51.9%) subjects were obese according to BMI, 24 (22.2%) subjects were overweight, and 28 (25.9%) subjects were of normal weight. A total of 47 (43.5%) subjects had severe psoriasis, followed by moderate psoriasis in 36 (33.3%) subjects, and mild psoriasis in 25 (23.1%) subjects. There was no significant correlation of BMI with psoriasis severity in subjects of productive age (p = 0.249). Healthy lifestyle and weight control are necessary in the management strategy of persons with psoriasis, because of the high prevalence of persons with psoriasis and obesity.

Relationship Between Body Mass Index and Blood Lipids with Kidney Stone Disease: The Fasa Adults Cohort Study

Background: Urinary stones rank as the third most common disease of the genitourinary system, following urinary tract infections and prostate diseases. Their incidence is influenced by various demographic, environmental, and genetic factors. Objectives: This study aimed to explore the association between Body Mass Index (BMI), blood lipids, and kidney stones. Methods: This cross-sectional study utilized the baseline data of 10 133 participants aged 35 - 70 years from the Fasa cohort study. The dataset included demographic information, biochemical laboratory results, anthropometric measurements, behavioral data, and the presence or absence of kidney stones. Data analysis employed t-tests, chi-square tests, and logistic regression models. Results: Among the 10 133 participants, 54.9% were women, with a mean age of 48.63 ± 9.57 years. The prevalence of kidney stones was 17.3%. The findings indicated a correlation between BMI and triglyceride levels (TG) with kidney stones. Elevated BMI and triglyceride levels were associated with increased odds of developing kidney stones, with odds ratios of 1.048 (95% CI: 1.025 - 1.048) and 1.006 (95% CI: 1.001 - 1.006), respectively. Conclusions: The study revealed a significant relationship between BMI, triglyceride levels, and kidney stones. Individuals with kidney stones exhibited higher mean BMI and TG levels compared to those without. These findings from the Fasa PERSIAN (Prospective Epidemiological Research Studies in Iran) cohort suggest that kidney stone disease is linked to elevated triglyceride levels and BMI. Given that a high-fat diet contributes to increased BMI and elevated serum triglyceride levels, measures to reduce weight, combat obesity, and manage triglyceride levels are warranted to mitigate the risk of kidney stone formation.

The Association of Body Mass Index and Early Outcomes Following Orthognathic Surgery

The existing data on the link between body mass index (BMI), operative characteristics, and surgical outcomes across orthognathic surgery are limited. The purpose was to measure the association between BMI and early postoperative outcomes in orthognathic surgery. This is a retrospective cohort study of patients (n=118) aged > 14years undergoing bimaxillary orthognathic surgery between 2015 and 2018 by a single surgeon within the Kaiser Permanente Northern California-integrated healthcare system. Patients undergoing unilateral or additional procedures, history of prior orthognathic surgery, or pre-existing pain conditions were excluded. The predictor variable was BMI measured as a continuous (kg/m2) and categorical variable (underweight/normal, overweight, obese). The primary outcome variables were additional postoperative antibiotics, increased postoperative visits, wound dehiscence, and wound infection. The secondary outcome variables were total operative and anesthesia time. The demographic covariates included age, sex, and race/ethnicity. The clinical covariates included history of obstructive sleep apnea, Mallampati score, tobacco use, American Society of Anesthesia classification, thyromental distance, history of difficult intubation, and Angle's classification. Bivariate and multivariate analyses were performed to measure the associations between BMI and the primary and secondary outcomes. Multivariable logistic regression analyses were used to measure associations between BMI and the postoperative outcomes. Statistical significance was defined as P<.05. The study sample was composed of 118 subjects with a mean age of 26.91years (standard deviation 9.43). Forty-seven percent (n=55) were male, and the mean BMI was 25.13 (standard deviation 5.19). BMI category was significantly associated with age, with increasing age associated with higher BMI category (P=.02). According to the bivariate and multivariable logistic regression analyses, controlling for age, race/ethnicity, BMI, and total operative time, increased total operative time was associated with additional postoperative antibiotics (odds ratio=1.03, 95% confidence interval: 1.01, 1.05), and increased postoperative appointments (odds ratio=1.02, 95% confidence interval: 1.01, 1.04). No significant association between BMI and other clinical or operative characteristics was seen aside from American Society of Anesthesia classification. Elevated BMI was not associated with worsened operative characteristics or postoperative outcomes. This supports the suitability of orthognathic surgery in a BMI-diverse population.

Obesity and Associated Outcomes for Blunt vs Penetrating Mechanism in Trauma Laparotomy Patients.

Obesity in trauma patients is an established risk factor contributing to postoperative complications, but the relationship between body mass index (BMI) and trauma patient outcomes is not well-defined, especially when stratified by mechanism of injury. We surveyed the trauma laparotomy registry at an academic level 1 trauma center over a 3-year period to identify mortality, injury severity score, and hospital length of stay (hLOS) outcome measures across BMI classes, with further stratification by mechanism of injury: blunt vs penetrating trauma. A total of 442 patients were included with mean age 44.6 (SD = 18.7) and mean BMI 28.55 (SD = 7.37). These were subdivided into blunt trauma (n = 313) and penetrating trauma (n = 129). Within the blunt trauma subgroup, the hLOS among patients who survived hospitalization significantly increased 9% for each successive BMI class (P = .022, 95% CI = 1.29-17.5). We conclude that successive increase in BMI class is associated with longer hospital stay for blunt trauma patient survivors requiring laparotomy, though additional analysis is needed to establish this relationship to other outcome measures and among penetrating trauma patients.

Obesity Portends Increasing Rates of Superficial Surgical Site Infection Following Pediatric Reduction Mammoplasty: A National Surgical Database Analysis.

Pediatric reduction mammoplasty has become increasingly common due to the obesity epidemic. While obesity remains the leading cause of macromastia leading to surgery, it may also be a risk factor for postoperative complications. This study examines the safety of pediatric reduction mammoplasty and the risk of obesity for complications following this procedure. The American College of Surgeons National Surgical Quality Improvement Program Pediatrics was queried to obtain all reduction mammoplasty cases from 2012 to 2020. Univariate and multivariate logistic regression analyses controlling for confounders were carried out to assess the relationship between body mass index (BMI) and rates of complication. One thousand five hundred eighty-nine patients with the primary Current Procedural Terminology code 19318 were included in the final analysis. The mean age was 16.6 (SD, 1.1) years, and the mean BMI was 30.5 (SD, 6.2) lb/in2. Notably, 49% of the patients were obese, and 31% were overweight, while only 0.4% were underweight. Forty-three patients (2.7%) sustained a superficial surgical site infection (SSI) postoperatively. Other complications were less prevalent, including deep SSI (4 patients, 0.3%), dehiscence (11, 0.7%), reoperation (21, 1%), and readmission (26, 1.6%).Independent variables analyzed included age, sex, BMI, diabetes mellitus, American Society of Anesthesiologists (ASA) class, and operative time, of which only BMI and ASA class were found to be significantly associated with SSI on univariate analysis. On multivariate logistic regression while controlling for ASA class and the false discovery rate, there was a strong association between increasing rates of superficial SSI and increasing BMI (unit odds ratio, 1.05; 95% confidence interval, [1.01, 1.09]; P = 0.02). The OR indicates that for each 1-unit increase in BMI, the odds of SSI increase by 5%. Complications following pediatric reduction mammoplasty are uncommon, demonstrating the safety of this procedure. High BMI was found to have a significantly higher risk for superficial SSI. Increased caution and infection prophylaxis should be taken when performing this operation on obese patients.

Association between obesity and new-onset heart failure among patients with hypertension in Thailand

BackgroundIn Thailand, the epidemiological data on the relationship between obesity and heart failure (HF) among high-risk populations was limited. We assessed the association between body mass index (BMI) and the new-onset HF among people with hypertension (HTN), and also assessed the effect modifier of uncontrolled HTN on this association.MethodsWe analyzed the data obtained from the 2018 Thailand DM/HT study database. Thai people with HTN aged 20 years and older receiving continuous care at outpatient clinics in hospitals nationwide were included. The new-onset HF was defined regarding the ICD-10 as I50 in the medical records within 12 months. Obesity was defined as BMI ≥\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$\\ge$$\\end{document} 25 kg/m2. Multivariable log-binomial regression analysis was used to determine the association between BMI and new-onset HF and presented as the adjusted risk ratio (aRR) and 95% confidence interval (CI).ResultsA total of 35,756 participants were included in the analysis. In all, 50.0% of the participants had BP control for the last two consecutive visits. The mean BMI was 25.1 ±\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$\\pm$$\\end{document} 4.7 kg/m2. New-onset HF occurred in 75 participants (0.21%; 95% CI 0.17–0.26). After adjusting for potential confounders, an elevated BMI was associated with new-onset HF (p value for quadratic trend < 0.001). In comparison with participants with normal BMI (18.5–22.9 kg/m2), the aRR for new-onset HF was 1.57 (95% CI 0.80–3.07) and 3.97 (95% CI 1.95–8.10) in those with BMI 25.0–29.9, and ≥ 30.0 kg/m2. For participants with obesity, aRR for new-onset HF was 2.05 (95% CI 1.24–3.39) compared to non-obese participants. The study found that among patients with control BP, obesity was associated with a higher risk of new-onset HF with an adjusted RR of 2.33 (95% CI 1.12–4.83). For those with uncontrolled BP, the adjusted RR was 1.83 (95% CI 0.93–3.58), but there was no heterogeneity with p value = 0.642.ConclusionAn increased BMI had a higher risk for new-onset HF among Thai people with HTN. Obesity was independently associated with new-onset HF among people with HTN, regardless of uncontrolled HTN. Our findings highlight that weight reduction is crucial for mitigating the risk of HF development in HTN patients, regardless of their BP control status.

Body Mass Index and Outcomes in Patients with Takotsubo Syndrome: A Nationwide Retrospective Cohort Study

Background: Takotsubo syndrome (TTS) is a cardiac disorder that mimics acute coronary syndrome at presentation. While previous studies have demonstrated a relationship between body mass index (BMI) and outcomes in acute coronary syndrome, few have examined its relationship with TTS. Methods: Using the Japanese Diagnosis Procedure Combination database, we retrospectively identified 14,551 patients admitted for TTS between 2010 and 2021. By applying multivariable regressions with restricted cubic splines, we examined the association between BMI and in-hospital mortality after adjusting for potential confounders. Results: Mean BMI was 21.1 kg/m2, classifying patients into severe underweight (<16.0 kg/m2, 7.1%), mild/moderate underweight (16.0–18.4 kg/m2, 18.3%), normal weight (18.5–22.9 kg/m2, 46.8%), overweight (23.0–27.4 kg/m2, 22.2%), and obese (≥27.5 kg/m2, 5.6%) groups. Patients with severe or mild/moderate underweight were older and had a higher prevalence of impaired physical activity, malignancy, chronic pulmonary disease, and pneumonia. In-hospital mortality was the highest (9.4%) in the severe underweight group, followed by the mild/moderate underweight group (5.4%), with the lowest being in the obese group (2.1%). Severe underweight (adjusted odds ratio = 2.05; 95% confidence interval [CI] = 1.54–2.73) and mild/moderate underweight (1.26; 95% CI = 1.01–1.57) were significantly associated with higher mortality compared with normal weight, while no significant association was noted with obesity. A nonlinear association between continuous BMI and mortality was observed, with mortality increasing when BMI decreased <20.0 kg/m2 but nearly plateauing in BMI >20.0 kg/m2. Conclusions: The present nationwide analysis demonstrated a nonlinear association between BMI and in-hospital mortality of TTS. BMI is an easily available and clinically relevant marker for the risk stratification of TTS.