The role of blood urea nitrogen to serum albumin ratio in the prediction of severity and 30-day mortality in patients with COVID-19.

The results showed that B/A ratio and SA levels are associated with mortality of COVID-19 patients. A higher B/A ratio is, additionally, associated with COVID-19 severity, except in mild cases and it can act as an independent risk factor in sepsis. However, a greater B/A ratio is not a significant predictor of COVID-19 severity, but it can predict mortality. Therefore, we suggest this marker for clinical assessment of patients with severe COVID-19.