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Table 1 Clinical characteristics of patients with COVID-19 on admission

From: Risk factors for disease progression in Japanese patients with COVID-19 with no or mild symptoms on admission

Characteristics

Total (n = 210)

Worsened (n = 49)

Stable (n = 161)

P value

Age, years

52.14 ± 20.14

63.47 ± 13.39

48.69 ± 20.58

 < 0.001

Sex, n (%)

   

0.013

 Male

126 (60.0)

37 (75.5)

89 (55.3)

 Female

84 (40.0)

12 (24.5)

72 (44.7)

BMI, n (%)

   

 < 0.001

  < 25 kg/m2

139 (66.2)

20 (40.8)

119 (73.9)

  ≥ 25 kg/m2

71 (33.8)

29 (59.2)

42 (26.1)

Comorbidities, n (%)

    

 Hypertension

52 (24.8)

25 (51.0)

27 (16.8)

 < 0.001

 Asthma

26 (12.4)

6 (12.2)

20 (12.4)

 > 0.99

 Diabetes mellitus

23 (11.0)

11 (22.5)

12 (7.5)

0.0071

 Cardiovascular disease

23 (11.0)

10 (20.4)

13 (8.1)

0.033

 Interstitial lung disease

5 (2.4)

0 (0.0)

5 (3.1)

0.59

Laboratory data

    

 WBC, 109/L

5.19 ± 2.07

5.33 ± 2.36

5.15 ± 1.94

0.58

 NLR

4.21 ± 8.26

4.45 ± 4.18

4.32 ± 5.35

0.21

 Hemoglobin, g/dL

14.07 ± 6.22

13.88 ± 1.93

14.13 ± 1.70

0.37

 CRP, mg/dL

1.78 ± 7.41

3.55 ± 3.89

1.24 ± 2.30

 < 0.001

 LDH, U/L

206.19 ± 68.81

245.35 ± 3.89

194.27 ± 62.54

 < 0.001

 Ferritin, ng/mL

282.74 ± 303.02

507.24 ± 437.22

214.41 ± 204.81

 < 0.001

 D-dimer, µg/mL

1.31 ± 7.87

1.43 ± 2.98

1.28 ± 4.14

0.81

  1. Categorical data are presented as numbers (percentages) and were analyzed using Fisher’s exact test. Continuous data are presented as mean ± standard deviation and were analyzed using Student’s t-test. P < 0.05 was considered statistically significant
  2. BMI body mass index, WBC white blood cell, NLR neutrophil-to-lymphocyte ratio, CRP C-reactive protein, LDH lactate dehydrogenase