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This study evaluated whether obesity was a risk factor for hospitalization due to COVID-19 in older patients compared with younger patients. Patients younger than 50 years of age without diabetes or hypertension who were hospitalized for COVID-19 had greater BMI than those who were older than 50 years of age (P = .02). BMI inversely correlated with increasing age among patients hospitalized with COVID-19 but not among patients hospitalized for other reasons.
Younger patients had greater BMI than older patients hospitalized for COVID-19, with or without diabetes and hypertension.
This abstract is available on the publisher's site.
Obesity has been found to be a risk factor for hospitalization with COVID-19. We were interested in understanding whether patients hospitalized with COVID-19 differed in BMI at older versus younger ages, and if trends were independent of diabetes and hypertension.
We performed a cross-sectional analysis of patients hospitalized with moderate to severe COVID-19 at Northwestern Memorial Hospital from March 19th , 2020 until April 4th , 2020. We compared patients hospitalized with COVID-19 above and below the age of 50, and to those hospitalized without COVID-19.
We found patients younger than 50 years of age hospitalized with COVID-19 without diabetes or hypertension had mean BMI greater than those older than 50 years of age, with BMI 43.1 (95%CI 34.5 - 51.7) kg/m2 vs 30.1 (95%CI 27.7 - 32.5) kg/m2 (p=0.02). Furthermore, BMI appears to inversely correlate with increasing age amongst patients hospitalized with COVID-19. We did not detect the same difference or trend for patients hospitalized without COVID-19.
We found younger patients (age <50 years) with COVID-19 had higher mean BMI than older patients with COVID-19, with and without diabetes and hypertension. This trend did not exist in patients without COVID-19 hospitalized during the same time-period.