A Chinese study showed that there is a specific case that doubles the risk of death from Covid-19 disease caused by the emerging SARS Cove 2 virus.
The study - whose results were published today in the journal "Diabetologia" - indicates that patients with high blood sugar levels are at double risk of dying from Covid-19.
This is the first time that scientists have confirmed that patients who record high levels of blood sugar without being diagnosed with diabetes face a greater death risk than Covid-19.
The researchers analyzed death rates for 605 Covid-19 patients in two hospitals in Wuhan, China.
They wrote that high blood sugar levels were "linked" in isolation from all other factors with an increased risk of death and complications from Covid-19.
The authors of the study were based on previous research conducted on diabetes patients.
In France, one out of every 10 people with Covid-19 suffering from diabetes died, which is higher than that recorded in people without HIV without diabetes, according to a study published by the same magazine in May.
The cause of increased death rates for Covid-19 patients as a result of diabetes remains uncertain.
The researchers said that blood clotting and excessive reaction of the immune system may have a role in this topic.
The study authors called on hospitals to conduct tests for all Covid-19 patients to know their blood sugar levels, contrary to recommendations to limit this to patients with proven diabetes.
However, researchers not participating in the study warned of the limits of this study, said Navid Starr, professor of metabolism at the University of Glasgow, "It is a good report, but it is completely in line with expectations."
"What researchers cannot confirm is whether the varying targeting of blood sugar levels in patients leads to differences in results," he added.