Table 1 Characteristics of patients with severe COVID-19 (n = 23)

Age(range)

53.52 ± 13.19 (30–75)

Gender

 Male

14(60.87%)

 Female

9(39.13%)

Comorbidity

 Hypertension

3(13.04%)

 Coronary heart disease

1(4.34%)

 Diabetes

3(13.04%)

 Carcinoma

2(8.70%)

Symptoms

 Fever(temperature ≥ 37.3 °C)

19(82.61%)

 Cough

20(86.96%)

 Haemoptysis

1(4.34%)

 Sputum

15(65.22%)

 Dyspnoea

12(52.17%)

 Nausea or vomiting

3(13.04%)

 Diarrhea

4(17.39%)

 Myalgia

9(39.13%)

PSI Score

 III (General)

1(4.34%)

 IV (Severe)

21(91.30%)

 V (Critical)

1(4.34%)

Laboratory main findings

 White blood cell count, × 10⁹ per L

   < 4

3(13.04%)

  4–10

19(82.61%)

   > 10

1(4.34%)

 Lymphocyte count, × 10⁹ per L

   < 0.8

12(52.17%)

  Haemoglobin, g/L

138.43 ± 17.85

  Platelet, × 10⁹ per L

197.30 ± 65.93