The researchers fed the system health data from almost 4,000 COVID-19 patients in Denmark to train it to find patterns in their medical histories. The tool determined whether an uninfected person who later catches the virus will die from the disease with up to 90% certainty. [Read: How much does it cost to buy, own, and run an EV? It’s not as much as you think] It also predicted whether someone who’s admitted to hospital with COVID-19 will need a respirator with 80% accuracy. Professor Mads Nielsen of the University of Copenhagen said the tool could help identify who to prioritize for vaccines and how many respirators a hospital will need: The system also analyzed which health factors would likely lead a COVID-19 patient to die or need a respirator. Unsurprisingly, BMI and age were the most decisive indicators. But the study also showed that males and people with high blood pressure or a neurological disease had an elevated risk. The next most influential health factors were having chronic obstructive pulmonary disease (COPD), asthma, diabetes, and heart disease. “For those affected by one or more of these parameters, we have found that it may make sense to move them up in the vaccine queue, to avoid any risk of them becoming infected and eventually ending up on a respirator,” said Nielsen. You can read the study paper in the journal Nature.