Table 1 Baseline clinical characteristics of patients according to SARS-CoV-2 RNA detection in blood by Roche technique.

From: Detection of SARS-CoV-2 RNA in serum is associated with increased mortality risk in hospitalized COVID-19 patients

 

Study population

(n = 193)

Viremia

Absent

(n = 100)

Present

(n = 93)

P

Value

Age

63 (55–71)

61 (54–68)

67 (59–73)

0.001

Male sex

134 (69)

68 (68)

66 (71)

0.655

Comorbidities

137 (71)

67 (67)

70 (75)

0.206

Duration of symptoms at admission (days)

6 (4–8)

7 (5–9)

6 (4–8)

0.120

Baseline PaO2/FiO2

188 (100–282)

250 (145–348)

146 (90–214)

 < 0.001

Treatment during hospitalization

 Hydroxychloroquine

186 (96)

97(97)

89(96)

0.629

 Lopinavir/ritonavir

168 (87)

83 (83)

85 (91)

0.083

 Azithromycin

133 (69)

69 (69)

64 (69)

0.978

 Interferon-β

8 (4)

2 (2)

6 (6)

0.121

Glucocorticoids

134 (69)

62 (62)

72 (77)

0.020

Methylprednisolone bolus

101 (63)

42 (53)

59 (72)

0.014

Tocilizumab

91 (47)

36 (36)

55 (59)

0.001

Laboratory findings

 WBC (103/mm3)

NR: 4.00–10.00

7.18 (4.82–9.61)

6.89 (4.66–9.35)

7.47 (5.00–10.36)

0.374

Lymphocytes/mm3

NR: 1.00–4.00

790 (590–1165)

950 (720–1270)

660 (510–860)

 < 0.001

Creatinine (mg/dl)

NR:0.70–1.20

0.86 (0.67–1.09)

0.85 (0.69–1.03)

0.90 (0.63–1.16)

0.563

LDH (U/L)

NR: 135–225

390 (278–512)

314 (246–428)

461 (371–565)

 < 0.001

CK (U/L)

NR: 20–180

100 (49–270)

94 (49–155)

110 (56–336)

0.315

Serum IL-6 (pg/ml)

NR: < 30 pg/ml

20.7 (7.9–52.1)

16.4 (7.5–41.3)

27.0 (7.9–70.3)

0.031

Ferritin (ng/ml)

NR: 30–400

1542 (871–2617)

1418 (717–2068)

1637 (944–3088)

0.267

CRP (mg/dL)

NR: 0.00–0.50

12.2 (5.5–23.0)

10.3 (5.1–19.2)

14.7 (7.5–25.7)

0.026

PCT (ng/ml)

NR: 0.05–0.09

0.19 (0.11–0.41)

0.13 (0.08–0.31)

0.26 (0.14–0.56)

0.002

d-dimer (µg/ml)

NR:0.14–0.50

0.78 (0.52–1.47)

0.7 (0.45–1.22)

0.87 (0.67–1.75)

0.030

  1. Bold values express significant differences between groups.
  2. All categorical variables are expressed as number (%) and quantitative variables as median (p25-75). PaO2/FiO2: arterial oxygen tension–fraction of inspired oxygen ratio; WBC: white blood count; NR: normal range; LDH: lactate dehydrogenase; CK: creatin kinase; IL6: interleukin-6; CRP: C-reactive protein; PCT: procalcitonin.