Positive

SARS-CoV-2 rt-PCR (n = 23)

Negative

SARS-CoV-2 rt-PCR (n = 122)

p-value

Typical chest CT features, n (%)

20 (87.0)

37 (30.3)

<0.0001

Lymphopenia (<1200/uL), n (%)

12 (52.2)

65 (53.3)

0.922

Exposure to a positive SARS-CoV-2 patient, n (%)

6 (26.1)

3 (2.5)

<0.0001

Fever and dry cough, n (%)

8 (34.8)

22 (18.0)

0.069

Male gender, n (%)

12 (52.2)

69 (56.6)

0.698

Comorbidities*, n (%)

22 (95.7)

115 (94.3)

0.789

Negative respiratory viruses test (other than SARS-CoV-2) and negative urinary antigen tests+, n (%)

21 (91.3)

114 (93.4)

0.710

C-reactive protein > 5.0 mg/dL, n (%)

14 (60.9)

84 (68.9)

0.453

Procalcitonin < 0.5 ng/mL, n (%)

19 (82.6)

74 (60.7)

0.044

LDH > 250 U/L, n (%)

15 (65.2)

59 (48.4)

0.138

Total PSIC score, mean ± SD

13.17 ± 3.72

8.39 ± 3.67

<0.0001