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Table 2 General demographics and laboratory parameters of the original and revalidation cohort

From: Revalidating the prognostic COVID-19 severity assessment (COSA) score for variants of concern

 

Non-severe (N = 758)

Severe (N = 512)

Original

(N = 457)

Revalidation

(N = 301)

P value

Original

(N = 171)

Revalidation

(N = 208)

P value

Demographics

 Age (years)

  Median

(IQR)

64.00 (49.00, 76.00)

72.00 (59.00, 82.00)

 < 0.002

68.00 (57.00, 78.00)

72.00 (59.75, 82.25)

0.058

 Sex

  Female, n (%)

188 (41.05)

125 (41.81)

0.895

45 (26.32)

63 (30.29)

0.460

 Hospitalization

  Inpatients, n (%)

319 (69.58)

299 (100.00)

 < 0.002

163 (95.27)

208 (100.00)

0.005

 Deaths

  Deceased, n (%)

0 (0.00)

0 (0.00)

51 (29.82)

120 (57.69)

 < 0.002

 Weight (kg)

  Median

(IQR)

77.90 (66.23, 88.00)

76.30 (65.62, 88.00)

0.526

81.00 (70.40, 93.70)

75.20 (65.20, 90.00)

0.026

 Height (cm)

  Median

(IQR)

170.00 (165.00, 176.00)

170.00 (163.00, 177.00)

0.241

170.00 (165.00, 176.00)

170.00 (165.00, 176.75)

0.883

 Body Mass Index (BMI, kg/m2)

  Median

(IQR)

25.98 (23.38, 29.74)

26.20 (23.29, 30.32)

0.489

28.07 (25.20, 31.20)

26.87 (23.28, 29.81)

0.018

Laboratory parameters

 Maximum C-reactive protein (CRP) levels

  Median (IQR)

37.00 (10.00, 78.00)

60.00 (21.00, 107.50)

 < 0.002

106.00 (59.00, 175.00)

125.50 (62.00, 202.50)

0.300

 Maximum sodium levels

  Median (IQR)

139.00 (137.00, 141.00)

139.00 (137.00, 142.00)

0.262

142.00 (139.00, 145.00)

142.00 (138.00, 146.00)

0.901

 Minimum hemoglobin levels

  Median (IQR)

132.00 (118.00, 144.00)

126.00 (111.00, 142.00)

0.004

113.00 (89.50, 125.00)

107.50 (84.75, 124.25)

0.372

 Minimum glomerular filtration rate (GFR) values

  Median (IQR)

82.00 (61.00, 97.00)

75.00 (52.00, 93.00)

0.007

64.00 (39.50, 87.00)

56.00 (31.75, 84.25)

0.158

 Minimum glucose values

  Median (IQR)

6.40 (5.67, 7.90)

6.90 (6.00, 8.46)

0.002

9.50 (7.46, 12.55)

9.45 (7.18, 11.80)

0.393

 Minimum leukocytes values

  Median (IQR)

6.32 (4.70, 8.61)

6.41 (4.91, 9.09)

0.235

8.92 (6.65, 13.70)

10.90 (7.03, 15.12)

0.072

  1. Laboratory parameters were considered from three day prior to until 1 day after the first positive SARS-CoV-2 PCR test result
  2. IQR interquartile range
  3. Bold numbers indicate significant differences (p < 0.05) between severe and non-severe cases.