COVID-GRAM Critical Illness Risk ScoreLoading...X-ray abnormalityNo0Yes+1HemoptysisNo0Yes+1DyspneaNo0Yes+1UnconsciousnessNo0Yes+1Cancer historyNo0Yes+1Lactate dehydrogenaseU/LNumber of comorbiditiesAgeyearsDirect bilirubinumol/LNeutrophil to lymphocyte ratio适用指征洞见与注意事项