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Association of Body Mass Index and Age With Morbidity and Mortality in Patients Hospitalized With COVID-19: Results From the American Heart Association COVID-19 Cardiovascular Disease Registry

Circulation (New York, N.Y.), 2021-01, Vol.143 (2), p.135-144 [Peer Reviewed Journal]

2020 by the American College of Cardiology Foundation and the American Heart Association, Inc. ;ISSN: 0009-7322 ;EISSN: 1524-4539 ;DOI: 10.1161/CIRCULATIONAHA.120.051936 ;PMID: 33200947

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  • Title:
    Association of Body Mass Index and Age With Morbidity and Mortality in Patients Hospitalized With COVID-19: Results From the American Heart Association COVID-19 Cardiovascular Disease Registry
  • Author: Hendren, Nicholas S ; de Lemos, James A ; Ayers, Colby ; Das, Sandeep R ; Rao, Anjali ; Carter, Spencer ; Rosenblatt, Anna ; Walchok, Jason ; Omar, Wally ; Khera, Rohan ; Hegde, Anita A ; Drazner, Mark H ; Neeland, Ian J ; Grodin, Justin L
  • Subjects: Age Factors ; Aged ; American Heart Association ; Body Mass Index ; COVID-19 - mortality ; COVID-19 - therapy ; Female ; Hospitalization ; Humans ; Male ; Middle Aged ; Obesity - classification ; Obesity - mortality ; Obesity - therapy ; Registries ; SARS-CoV-2 ; United States - epidemiology
  • Is Part Of: Circulation (New York, N.Y.), 2021-01, Vol.143 (2), p.135-144
  • Description: BACKGROUND:Obesity may contribute to adverse outcomes in coronavirus disease 2019 (COVID-19). However, studies of large, broadly generalizable patient populations are lacking, and the effect of body mass index (BMI) on COVID-19 outcomes— particularly in younger adults—remains uncertain. METHODS:We analyzed data from patients hospitalized with COVID-19 at 88 US hospitals enrolled in the American Heart Association’s COVID-19 Cardiovascular Disease Registry with data collection through July 22, 2020. BMI was stratified by World Health Organization obesity class, with normal weight prespecified as the reference group. RESULTS:Obesity, and, in particular, class III obesity, was overrepresented in the registry in comparison with the US population, with the largest differences among adults ≤50 years. Among 7606 patients, in-hospital death or mechanical ventilation occurred in 2109 (27.7%), in-hospital death in 1302 (17.1%), and mechanical ventilation in 1602 (21.1%). After multivariable adjustment, classes I to III obesity were associated with higher risks of in-hospital death or mechanical ventilation (odds ratio, 1.28 [95% CI, 1.09–1.51], 1.57 [1.29–1.91], 1.80 [1.47–2.20], respectively), and class III obesity was associated with a higher risk of in-hospital death (hazard ratio, 1.26 [95% CI, 1.00–1.58]). Overweight and class I to III obese individuals were at higher risk for mechanical ventilation (odds ratio, 1.28 [95% CI, 1.09–1.51], 1.54 [1.29–1.84], 1.88 [1.52–2.32], and 2.08 [1.68–2.58], respectively). Significant BMI by age interactions were seen for all primary end points (P-interaction<0.05 for each), such that the association of BMI with death or mechanical ventilation was strongest in adults ≤50 years, intermediate in adults 51 to 70 years, and weakest in adults >70 years. Severe obesity (BMI ≥40 kg/m) was associated with an increased risk of in-hospital death only in those ≤50 years (hazard ratio, 1.36 [1.01–1.84]). In adjusted analyses, higher BMI was associated with dialysis initiation and with venous thromboembolism but not with major adverse cardiac events. CONCLUSIONS:Obese patients are more likely to be hospitalized with COVID-19, and are at higher risk of in-hospital death or mechanical ventilation, in particular, if young (age ≤50 years). Obese patients are also at higher risk for venous thromboembolism and dialysis. These observations support clear public health messaging and rigorous adherence to COVID-19 prevention strategies in all obese individuals regardless of age.
  • Publisher: United States: by the American College of Cardiology Foundation and the American Heart Association, Inc
  • Language: English
  • Identifier: ISSN: 0009-7322
    EISSN: 1524-4539
    DOI: 10.1161/CIRCULATIONAHA.120.051936
    PMID: 33200947
  • Source: GFMER Free Medical Journals
    MEDLINE

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