By univariable analysis, we found that age, co-morbidities, leukocyte count, lymphocyte count, neutrophil count, procalcitonin, aspartate transaminase, lactate dehydrogenase, albumin, creatinine, lesion size and number of involved lung segments were related to the severity of COVID-19, which also had been reported before [4,6,27]. Here, ALB is linked to COVID-19.