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. 2021 Aug 19;3(8):e0515. doi: 10.1097/CCE.0000000000000515

TABLE 1.

Study of the Treatment and Outcomes in Critically Ill Patients With Coronavirus Disease 2019 Mortality Index—A Simple Scoring System for Predicting 28-Day Mortality

Risk Factor Points
Age (yr)
 18–69 0
 70–79 2
 ≥ 80 5
Altered mental status
 Yes 5
 No 0
Number of ICU beds
 ≤ 50 6
> 50 0
Arterial pH
 ≤ 7.2 6
> 7.2 0
Creatinine (mg/dL)
< 2 0
 ≥ 2 or renal replacement therapy 2
Lactate (mmol/L)
 ≤ 2.0 0
> 2.0 2
Pao2/Fio2 ratio (mm Hg)
 ≤ 100 1
> 100 0
Sodium (mEq/L)
 ≤ 145 0
> 145 1
Urine output (mL)
 ≤ 200 1
> 200 0
Cardiovascular comorbidity
 None 0
 Any 2