U.K., Sept. 11 -- A new tool could help doctors identify the risk of death in a patient with COVID-19 in seconds, new research has found.

The 4C tool has been built by a group of researchers from the universities of Edinburgh, Glasgow, Liverpool and Imperial College London, using data from 35,000 patients who were admitted to hospitals in England, Wales and Scotland between February and May this year.

Using data from tests carried out upon their arrival at the hospitals, the researchers identified four distincts groups of people according to risk of death, ranging from low to very high. This included looking at their age, sex, number of pre-existing conditions, respiratory rate on admission, and the results of two blood tests.

One in ...