scholarly journals Abdominal Obesity Phenotype Predicts COVID-19 Chest X-Ray Severity Score better than General Obesity

Author(s):  
Alexis Elias Malavazos ◽  
Francesco Secchi ◽  
Sara Basilico ◽  
Gloria Capitanio ◽  
Sara Boveri ◽  
...  

Abstract PurposeChest x-ray (CXR) severity score and general obesity are predictive risk factors for COVID-19 hospital admission. However, the relationship between abdominal obesity and CXR severity score has not yet been fully explored.MethodsThis retrospective cohort study analyzed the association of different adiposity indexes, including waist circumference and body mass index (BMI), with CXR severity score in 215 hospitalized patients with COVID-19.ResultsPatients with abdominal obesity had significantly higher CXR severity scores and higher rates of these scores than those without abdominal obesity (P<0.001; P=0.001, respectively). While, there were no significant differences between BMI classes (P=0.104; P=0.271, respectively). Waist circumference and waist-to-height ratio (WHtR) correlated more closely with CXR severity score than BMI (r=0.43, P<0.001; r=0.41, P<0.001; r=0.17, P=0.012, respectively). The area under the curves (AUCs) for waist circumference and WHtR were significantly higher than those for BMI for distinguishing a high CXR severity score (≥8) (0.68 [0.60-0.75] and 0.67 [0.60-0.74] vs 0.58 [0.51-0.66], P=0.001). Multivariable analysis indicated abdominal obesity (risk ratio: 1.75, 95% CI: 1.25-2.45, P<0.001), bronchial asthma (risk ratio: 1.73, 95% CI: 1.07-2.81, P=0.026) and oxygen saturation at admission (risk ratio: 0.96, 95% CI: 0.94-0.97, P<0.001) as the only independent predictors of a high CXR severity score. ConclusionAbdominal obesity might predict a high CXR severity score better than general obesity in hospitalized patients with COVID-19. Therefore, when performing clinical hospital practices, waist circumference should be assessed, and patients with abdominal obesity should be monitored closely when hospitalized.

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Jin-liang Liu ◽  
Feng Xu ◽  
Hui Zhou ◽  
Xue-jie Wu ◽  
Ling-xian Shi ◽  
...  

Abstract Aim of this study was to develop a new simpler and more effective severity score for community-acquired pneumonia (CAP) patients. A total of 1640 consecutive hospitalized CAP patients in Second Affiliated Hospital of Zhejiang University were included. The effectiveness of different pneumonia severity scores to predict mortality was compared, and the performance of the new score was validated on an external cohort of 1164 patients with pneumonia admitted to a teaching hospital in Italy. Using age ≥ 65 years, LDH > 230 u/L, albumin < 3.5 g/dL, platelet count < 100 × 109/L, confusion, urea > 7 mmol/L, respiratory rate ≥ 30/min, low blood pressure, we assembled a new severity score named as expanded-CURB-65. The 30-day mortality and length of stay were increased along with increased risk score. The AUCs in the prediction of 30-day mortality in the main cohort were 0.826 (95% CI, 0.807–0.844), 0.801 (95% CI, 0.781–0.820), 0.756 (95% CI, 0.735–0.777), 0.793 (95% CI, 0.773–0.813) and 0.759 (95% CI, 0.737–0.779) for the expanded-CURB-65, PSI, CURB-65, SMART-COP and A-DROP, respectively. The performance of this bedside score was confirmed in CAP patients of the validation cohort although calibration was not successful in patients with health care-associated pneumonia (HCAP). The expanded CURB-65 is objective, simpler and more accurate scoring system for evaluation of CAP severity, and the predictive efficiency was better than other score systems.


2020 ◽  
Author(s):  
Ygor Hermenegildo-López ◽  
Helena Sandoval-Insausti ◽  
Carolina Donat-Vargas ◽  
Jose Ramón Banegas ◽  
Fernando Rodríguez-Artalejo ◽  
...  

Abstract Objectives to examine the association of general and abdominal obesity with falls, falls requiring medical care and falls with fractures in older women. Design a population-based prospective cohort of 1,185 women aged ≥60 in Spain, followed up from 2008 to 2010 through 2012. Measures weight, height and waist circumference were measured at baseline using standardised techniques. Participants were classified according to body mass index as normal weight (&lt;25), overweight (25–29.9) and general obesity (≥30). Abdominal obesity was defined as waist circumference &gt;88 cm. In 2012, participants reported the falls experienced in the previous year. Logistic regression models were mutually adjusted for general and abdominal obesity and for main confounders. Results in this cohort of older women, a total of 336 women experienced falls, 168 of them had falls requiring medical care and 64 falls with fractures. For falls, no association was found with general obesity nor abdominal obesity. However, compared with normal weight, overweight women had a decreased risk for falls requiring medical care [odds ratio (OR) 0.57; 95% confidence interval (CI) 0.34–0.94] and for falls with fractures (OR 0.27; 95% CI 0.12–0.63). The corresponding values for general obesity were 0.44 (0.24–0.81) and 0.30 (0.11–0.82). Abdominal obesity was positively associated with falls requiring medical care (OR 1.82; 95% CI 1.12–2.94) and falls with fractures (OR 2.75; 95% CI 1.18–6.44). Conclusions in older women, general obesity may protect from falls requiring medical care and falls with fractures. On the contrary, abdominal obesity increased the risk of suffering from types of falls.


2021 ◽  
Vol 9 (1) ◽  
pp. 211-221
Author(s):  
Astha Astha ◽  
Bindu Krishnan ◽  
Anup Kharde

Over the past few decades there has been an increase in the central or abdominal obesity. Endothelial dysfunction, insulin resistance with metabolic syndrome and a higher cardiometabolic risk are directly linked to abdominal obesity. A better understanding of the epidemiology of obesity would provide insights to its mitigation. This cross sectional study was designed to identify Central obesity, General obesity and Normal Weight central obesity among young adults using the following surrogate markers Waist circumference (WC), Waist hip ratio (WHR), Waist height ratio (WtHR) and BMI. After due informed written consent, 300 young adults with equal representation of both sexes (150 each) studying MBBS, Dentistry and Physiotherapy stream in a private university were selected. Various anthropometric measures like weight, hip circumference and waist circumference and height were measured according to WHO STEPS instrument. BMI based on Asia- Pacific cut -off values was used to define general obesity. Central obesity was defined by a Waist Circumference of  80 cm in females and  90 cm in male’s .For waist to height ratio a value of  0.5 in both genders was used. For waist to hip ratio the cut off value used was 0.85 in females and 0.90 in males. An individual with normal weight according to BMI but having central obesity fits into Normal Weight Central obesity category. Average age of the participants was 20.6 1.31 years. General Obesity was more among males with 46% prevalence as compared to 25.33%among females. In contrast, the prevalence of central obesity was more among females. The prevalence of Normal weight central obesity was more among females, varying from 4% to 17% using different types of anthropometric measures for central obesity. A high positive correlation was observed between BMI with WC, WtHR and WHR. (p=0.0001) Current practice of taking only BMI into consideration for defining obesity in our country needs serious re-evaluation considering the increasing prevalence of abdominal obesity and its long term impact.


2021 ◽  
Author(s):  
Farzaneh Asoudeh ◽  
Asma Salari-Moghaddam ◽  
Ammar Hassanzadeh Keshteli ◽  
Ahmad Esmaillzadeh ◽  
Peyman Adibi

Abstract Purpose: Despite the huge evidence on the link between dietary protein intake and obesity, limited studies have examined the role of individual amino acids in this regard. This study aimed to investigate the association between dietary total and individual BCAAs intake and odds of general and abdominal obesity in a large group of adults.Methods: This cross-sectional study was conducted among 8691 adults aged 18-55 years in Isfahan, Iran. Dietary BCAAs were assessed using a validated dish-based 106-item semi-quantitative food frequency questionnaire (DS-FFQ). Information about weight and waist circumference were collected through a self-reported validated questionnaire. General obesity was defined as body mass index (BMI) ≥30 kg/m2, and abdominal obesity was defined as waist circumference (WC) ≥88 cm for women and ≥102 cm for men.Results: Mean age of study participants was 36.8±8.1 years. Prevalence of general obesity was 9.2% in men and 9.7% in women and that of abdominal obesity was 13.3% and 36.2% in men and women, respectively. We found that participants in the top tertile of total BCAAs intake had higher odds of general obesity compared with those in the bottom tertile (OR: 1.42; 95% CI: 1.09-1.84). Such significant association was seen in men (OR: 1.57; 95% CI: 1.05-2.34), but not in women (OR: 1.33; 95% CI: 0.94-1.89) in our stratified analysis. We found no significant association between total BCAAs intake and odds of abdominal obesity. Stratified by sex, no significant association was observed between total BCAAs intake and odds of abdominal obesity [for men: (OR: 1.10; 95% CI: 0.74-1.65) and for women: (OR: 1.08; 95% CI: 0.84-1.38)]. Assessing the association with individual BCAAs, a significant positive association was observed between dietary intake of valine (OR: 1.42; 95% CI: 1.10-1.84), leucine (OR: 1.43; 95% CI: 1.10-1.86), and isoleucine (OR: 1.42; 95% CI: 1.09-1.84) with general obesity. We observed no significant association between dietary intake of individual BCAAs intake and odds of abdominal obesity.Conclusion: Dietary BCAAs intake was associated with an increased odds of general obesity, in particular among men. No significant association was observed between dietary BCAAs and abdominal obesity.Level of evidence: Level V, descriptive cross-sectional study.


Author(s):  
Sandeep Soam Singh ◽  
Sonali Chaturvedi

Aim: To assess whether serum Vitamin D levels are associated with general and abdominal obesity in young adults. Materials & Methods: A total of 113 MBBS students of the same batch aged 17–21 years (59 boys and 54 girls) were included in this case-control study. Height and body weight were measured to calculate Body Mass Index (BMI) for General obesity and waist circumference was measured for central obesity. Plasma vitamin D levels were measured. Participants were grouped according to Asian criteria for BMI and abdominal circumference in normal and obese group. Results: Mean age of students, who participated in study, was 18.2± 0.95 years. In the general obesity group the mean plasma Vitamin D level was 18.77±13.31ng/ml and in its normal reference group(with normal BMI) the mean plasma Vitamin D level was 19.02±16.21ng/ml. In the central obesity group the mean plasma Vitamin D level for males was 21.10±13.30ng/ml and in females 13.52±10.5 ng/ml and in its normal reference group(with normal waist circumference) the mean plasma Vitamin D level in males was 20.16±11.89ng/ml and in females it was 12.66±9.40 ng/ml. Conclusion: Comparison between obese group and normal group revealed that general obesity and central obesity has no correlation with plasma Vitamin D levels. Plasma Vitamin D deficiency was prevalent even in apparently healthy young individuals and it is more common in females. Key words: Plasma Vitamin D, Obese, Asian criteria of BMI, MBBS students


2002 ◽  
Vol 18 (3) ◽  
pp. 765-771 ◽  
Author(s):  
Gustavo Velásquez-Meléndez ◽  
Gilberto Kac ◽  
Joaquim Gonçalves Valente ◽  
Roberta Tavares ◽  
Cibele Queiroz da Silva ◽  
...  

This study examined the capacity of waist circumference (WC) to identify subjects with overweight (BMI ³ 25) and obesity (BMI ³ 30), in agreement with internationally recommended levels of action. Data were obtained from 791 women, 15-59 years old. After identifying overweight and obesity according to WC values, sensitivity and specificity were calculated to verify whether WC could be a good risk predictor for hypertension. Associations were tested by linear regression and logistic regression, controlling for confounding. WC cut-off points of 80cm and 88cm correctly identified 89.8% and 88.5% of women with overweight and obesity, respectively. Abdominal obesity (WC ³ 88cm) was statistically associated with hypertension in the multivariate analysis (OR = 2.88; 95% CI: 1.77-4.67). Hypertension was identified with a sensitivity of 63.8% and 42.8%, and with a specificity of 68.0% and 83.3%, for WC ³ 80 and ³ 88, respectively. The proposed cut-off points for abdominal obesity can potentially distinguish individuals at risk for future obesity, but has only moderate power to predict individuals with high blood pressure.


BMJ Open ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. e038465
Author(s):  
Ola Løvsletten ◽  
Bjarne K Jacobsen ◽  
Sameline Grimsgaard ◽  
Inger Njølstad ◽  
Tom Wilsgaard ◽  
...  

ObjectivesTo describe the prevalence of general (body mass index (BMI) ≥30 kg/m2) and abdominal (waist circumference women >88 cm, men >102 cm) obesity in Tromsø 7 (2015–2016), and the secular change from Tromsø 6 (2007–2008). Furthermore, to study longitudinal changes in body weight and waist circumference from Tromsø 6 to Tromsø 7.SettingA population study in Tromsø, Norway.ParticipantsThe cross-sectional analyses included 20 855 participants in Tromsø 7 (aged ≥40 years) and 12 868 in Tromsø 6 (aged ≥30 years). The longitudinal analyses included 8592 participants with repeated measurements, aged 35–79 in Tromsø 6.Outcome measuresMean age-specific and sex-specific BMI, waist circumference, prevalence of general and abdominal overweight and obesity, as well as longitudinal changes in body weight and waist circumference according to sex and birth cohort.ResultsOver 8 years, the age-adjusted prevalence of general obesity increased (p<0.0001) from 20.1% to 23.0% in women and from 20.7% to 25.2% in men. The age-adjusted prevalence of abdominal obesity did not increase in women (from 54.7% to 53.4%), and the increase in men was modest (from 36.8% to 38.6%, p=0.003). Longitudinal analyses showed an increase in body weight, by 1.1 kg (95% CI 0.9 to 1.2) in women and 0.7 kg (95% CI 0.6 to 0.9) in men, and also waist circumference, by 1.3 cm (95% CI 1.0 to 1.5) in women and 1.4 cm (95% CI 1.2 to 1.6) in men. There were inverse relationships (p<0.001) between age at baseline and change in weight and waist circumference.ConclusionsRepeated cross-sectional analyses showed that the prevalence of general obesity increased, whereas the increase in abdominal obesity was less marked. Longitudinal analyses showed increases in both body weight and waist circumference. The youngest age groups have the largest increase.


2017 ◽  
Vol 126 (10) ◽  
pp. 619-627 ◽  
Author(s):  
Runa Zazai ◽  
Britta Wilms ◽  
Barbara Ernst ◽  
Rahel Keppler ◽  
Martin Thurnheer ◽  
...  

Abstract Background Recently, we showed that in subjects with a body mass index (BMI) >35 kg/m2 waist circumference (WC) is associated with metabolic traits but associations were weaker in men than in women. Aims To confirm our previous observation that anthropometric measures of abdominal obesity are closer linked to metabolic traits in obese women than obese men. To test whether sagittal abdominal diameter (SAD) provides a better prediction of metabolic traits in obese subjects than WC related measures. Methods SAD and WC along with metabolic traits were assessed in 204 women and 69 men (BMI 30.1–64.0 kg/m2). Results In women, abdominal obesity measures were associated with glycated hemoglobin levels (HbA1c), fasting serum glucose, insulin, triglycerides (TG), total cholesterol (Chol), high-density lipoprotein (HDL), and uric acid levels as well as Chol/HDL ratio and homeostatic model assessment of insulin resistance (HOMA-IR) independently of age and BMI. SAD predicted serum insulin and Chol better than WC, whereas WC was superior to SAD in predicting HbA1c, glucose, HOMA-IR, TG, HDL, Chol/HDL, and uric acid. Of note, the combination of SAD and WC provided a better prediction of insulin, HOMA-IR, TG, and uric acid than each of these anthropometric alone. In men, only fasting glucose, Chol, and uric acid levels were associated with abdominal obesity markers. Conclusion Data show various associations between anthropometric measures of abdominal obesity and metabolic traits in obese women but overall much less in obese men. Most metabolic traits are better predicted by WC than by SAD.


2015 ◽  
Vol 85 (3-4) ◽  
pp. 145-155 ◽  
Author(s):  
Marjan Ghane Basiri ◽  
Gity Sotoudeh ◽  
Mahmood Djalali ◽  
Mohammad Reza Eshraghian ◽  
Neda Noorshahi ◽  
...  

Abstract. Background: The aim of this study was to identify dietary patterns associated with general and abdominal obesity in type 2 diabetic patients. Methods: We included 728 patients (35 - 65 years) with type 2 diabetes mellitus in this cross-sectional study. The usual dietary intake of individuals over 1 year was collected using a validated semi-quantitative food frequency questionnaire. Weight, height, and waist circumference were measured according to standard protocol. Results: The two major dietary patterns identified by factor analysis were healthy and unhealthy dietary patterns. After adjustment for potential confounders, subjects in the highest quintile of the healthy dietary pattern scores had a lower odds ratio for the general obesity when compared to the lowest quintile (OR = 0.45, 95 % CI = 0.26 - 0.79, P for trend = 0.02), while patients in the highest quintile of the unhealthy dietary pattern scores had greater odds for the general obesity (OR = 3.2, 95 % CI = 1.8 - 5.9, P for trend < 0.001). There were no significant associations between major dietary patterns and abdominal obesity, even after adjusting for confounding factors. Conclusion: This study shows that in patients with type 2 diabetes mellitus, a healthy dietary pattern is inversely associated and an unhealthy dietary pattern is directly associated with general obesity.


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