Table 2 Univariate analysis of discharged and dead patients with Covid-19 in the derivation cohort.

From: A novel severity score to predict inpatient mortality in COVID-19 patients

Predictors

Discharged (n = 1733)

Died (n = 621)

p value

Age-years, mean (SD)

62.72 (16.1)

72.55 (13.1)

 < 0.001

Female sex, n (%)

962 (55.5)

294 (47.3)

 < 0.001

White, n (%)

188 (10.8)

81 (13)

0.139

African American, n (%)

759 (43.8)

252 (40.6)

Hispanic, n (%)

626 (36.1)

211 (34)

Asian, n (%)

27 (1.6)

17 (2.7)

Body mass index (kg/m2) (IQR)

29.1 (25–33.9)

28.2 (23.6–33.2)

0.42

Diabetes simple, n (%)

327 (18.9)

115 (18.5)

0.852

Diabetes complicated, n (%)

241 (13.9)

82 (13.2)

0.666

Congestive heart failure, n (%)

248 (14.3)

109 (17.6)

0.053

Myocardial infarction, n (%)

102 (5.9)

35 (5.6)

0.822

Chronic pulmonary disease, n (%)

120 (6.9)

61 (9.8)

0.02

Temperature (°C), (IQR)

37.06 (36.7–37.67)

37.17 (36.72–37.8)

0.001

Oxygen saturation (%), (IQR)

95 (92–98)

92 (84–96)

 < 0.001

Mean Arterial Pressure (MAP)-mmHg, (IQR)

89 (80–96.7)

72.3 (53.3–88.3)

 < 0.001

White Blood Cells per mm3, (IQR)

7 (5.2–9.5)

8.1 (5.8–11.6)

0.041

Lymphocytes per mm3, (IQR)

1 (0.7–1.4)

0.9 (0.6–1.3)

 < 0.001

Platelets k per mm3, (IQR)

217 (162–279)

192 (150–259)

 < 0.001

Alanine aminotransferase (AST) U/L , (IQR)

24 (15–39)

29 (17–44)

0.028

Aspartate aminotransferase (ALT) U/L , (IQR)

34 (23–55)

52 (31–82)

 < 0.001

Ferritin µg/L , (IQR)

675.5 (316–1476)

1119 (622–1980)

 < 0.001

International normalized ratio (INR), (IQR)

1.1 (1–1.2)

1.1 (1–1.3)

 < 0.001

D-dimer mg/ml, (IQR)

1.09 (0.36–2.51)

2.19 (0.35–7.0)

 < 0.001

Creatinine µmol/L, (IQR)

1.01 (0.8–1.52)

1.62 (1.03–3.1)

 < 0.001

Blood urea nitrogen (BUN) mg/dL, (IQR)

16 (10–28)

29 (13–58)

 < 0.001

Glucose mg/dL, (IQR)

132.5 (110–189)

155 (121–232)

0.187

Sodium mmol/L , (IQR)

137 (134–140)

138 (134–142)

 < 0.001

Interleukin-6 (IL-6) pg/ml, (IQR)

29.5 (13.7–61.1)

87 (42.3–179.4)

 < 0.001

C-Reactive protein (CRP) mg/L , (IQR)

5.5 (1.1–13.6)

13.3 (4.3–23)

 < 0.001

Procalcitonin ng/ml, (IQR)

0.2 (0.1–0.5)

0.9 (0.3–3.6)

 < 0.001

Troponin ng/ml, (IQR)

0.01 (0.01–0.01)

0.02 (0.01–0.08)

 < 0.001