Table 2 Radiographic and Laboratory Findings of COVID-19 Patients with Different BMI

 Leukocytes (×10⁹/L; normal range 4–10)

4.50(3.68–6.00)

4.95(3.91–6.04)

0.076

   > 10 × 10⁹/L

5(1.9%)

3(1.6%)

1.000

   < 4 × 10⁹/L

92(34.3%)

51(27.3%)

0.111

 Neutrophils (× 10⁹/L; normal range 2–7)

2.78(2.02–3.96)

3.10(2.41–4.10)

0.286

   > 7 × 10⁹/L

12(4.5%)

6(3.2%)

0.494

   < 2 × 10⁹/L

64(23.9%)

24(12.8%)

0.003

 Lymphocytes (×10⁹/L;normal range 0.8–4)

1.18(0.90–1. 60)

1.20(0.90–1.60)

0.880

   < 0.8 × 10⁹/L

40(14.9%)

25(13.4%)

0.641

 Hemoglobin (g/L, normal range: male 131–172, female 113–151)

133.52(16.11)

143.23(16.11)

< 0.001

 Platelet (×10⁹/L; normal range:100–300)

191.00(145.00–228.00)

181.50(154.00–218.50)

0.528

   < 100 × 10⁹/L

9(3.4%)

5(2.7%)

0.677

 International normalized ration (normal range 0.85–1.15)

1.01(0.97–1.08)

1.01(0.97–1.08)

0.951

 Albumin (g/L; normal range 40.0–55.0)

41.13(4.08)

41.61(4.12)

0.827

   < 40.0 g/L

91(34.0%)

77(41.2%)

0.116

 Alanine aminotransferase (U/L; normal range: male 9–50, female 7–40)

18.40(13.00–27.00)

27.00(18.25–42.75)

< 0.001

   > 50 (male), > 40(female) U/L

26(9.7%)

40(21.4%)

< 0.001

 Aspartate aminotransferase (U/L; normal range: male 15–40, female 15–35)

23.00(18.00–29.20)

27.00(21.00–35.38)

< 0.001

   > 40 (male), > 35(female) U/L

27(10.1%)

34(18.2%)

0.013

 Total bilirubin (umol/L; normal range 0–26.0)

8.90(6.00–12.75)

10.45(7.40–14.40)

0.019

   > 26.0 umol/L

7(2.6%)

6(3.2%)

0.707

 Serum potassium (mmol/L; normal range 3.5–5.3)

3.85(3.62–4.15)

3.80(3.60–4.08)

0.259

   < 3.5 mmol/L

42(15.7%)

35(18.7%)

0.394

 Serum sodium (mmol/L; normal range 137.0–147.0)

138.60(136.9–140.5)

137.80(135.6–139.7)

0.005

   < 137.0 mmol/L

72(26.9%)

71(38.0%)

0.012

 Blood urea nitrogen (mmol/L; normal range 3.1–8.0)

3.54(2.85–4.47)

3.75(2.99–4.60)

0.135

 Serum creatinine (umol/L; normal range male: 57–97, female 41–73)

61.00(52.00–73.00)

68.25(56.00–80.20)

< 0.001

 Creatine kinase (U/L; normal range: male40–200, female 50–130))

63.00(44.00–92.00)

76.00(51.50–99.00)

0.004

   > 200 (male), > 130(female) U/L

29(10.8%)

23(12.3%)

0.626

   Lactate dehydrogenase (U/L; normal range 120–250)

202.00(162.00–251.00)

212.50(170.50–276.00)

0.022

   > 250 U/L

64(23.9%)

58(31.0%)

0.091

 Glucose (mmol/L; normal range 3.9–6.1)

5.58(4.90–6.70)

6.29(5.36–7.85)

< 0.001

 C-reactive protein (mg/L; normal range 0–8)

6.10(1.60–14.67)

10.50(4.00–24.20)

< 0.001

Chest x-ray/CT findings

0.053

 Normal

21(7.8%)

11(5.9%)

 Unilateral pneumonia

61(22.8%)

25(13.4%)

 Bilateral pneumonia

117(43.7%)

94(50.3%)

 Multiple mottling and ground-glass opacity

69(25.7%)

57(30.5%)