• The primary goal of the study was to assess the relationship between obesity and risk of hospitalization in patients with severe cases of COVID-19.

• The study was conducted in the UK. The data was obtained from all over the UK through biobanks and the study population was 334,329.

• BMI was used as an indicator for obesity and out of the study population, 640 patients were hospitalized for COVID-19.

• For overweight, obese stage 1, and obese stage 2 patients, the incidence of getting hospitalized was much higher than the normal weight cases.

• In all of these cases, an upward linear trend for hospitalization was observed with increasing BMI.

• Overall, obesity seems to be a significant risk factor for COVID-19 hospitalization.