The study looked at hundreds of people with obesity and COVID, some of whom had had weight loss surgery and some who hadn't.
To find out, the Cleveland Clinic researchers observed a total of 20,212 adult patients with obesity, 5,053 of whom had had weight-loss surgery between 2004 and 2017. Compared with the non-surgical group, those who had had weight-loss surgery had lost 19 percent more of their body weight prior to March 1, 2020.
Between March 1, 2020, and March 1, 2021, 206 patients in the surgical group and 578 patients in the control group caught COVID. At the time of their positive COVID test, the average body weight of patients was 108.4 kg in the surgical group and 128.4 kg in the control group, for an average difference of 20 kg.
Therefore, according to the study, the crude rates in the surgical vs control group were 15.5% vs 28.2% for hospitalization, 9.2% vs 22.3% for the need for supplemental oxygen, 3.9% vs 9.3% for severe COVID infection and 1% vs 3.6% for death.Since the number of infections was relatively small, the study notes that its findings should be considered"hypothesis-generating and not conclusive.
Dr Steven Dissen, Chief Academic Officer of the Heart, Vascular and Thoracic Institute at Cleveland Clinic, said in a press release:"Striking findings from the current study support the reversibility of the health consequences of obesity in the patients with COVID-19.
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