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Table 1 Patient characteristics at the time of admission

From: Impact of respiratory bacterial infections on mortality in Japanese patients with COVID-19: a retrospective cohort study

 

No Bacterial Infection (n = 1635)

Respiratory Co-infection (n = 54)

Respiratory Secondary Infection (n = 85)

P value

Age

58.0 ± 18.0

65.9 ± 15.5

70.0 ± 13.9

 < 0.0001a=**/b=**

Sex (male)

1131 (64.9%)

41 (75.9%)

71 (83.5%)

0.0006

BMI

24.5 ± 4.68

23.3 ± 4.57

24.6 ± 6.97

0.19

Smoker

260 (16.0%)

6 (13.6%)

5 (7.04%)

0.0001

Hypertension

607 (35.4%)

18 (34. 0%)

43 (51.2%)

0.02

Cardiovascular disease

167 (9.67%)

5 (9.26%)

23 (27.1%)

 < 0.0001

Cancer

114 (6.65%)

5 (9.43%)

7 (8.43%)

0.61

Diabetes

381 (22.1%)

11 (20.4%)

32 (37.7%)

0.004

Asthma

112 (6.58%)

3 (5.88%)

5 (6.02%)

0.96

Hyperuricemia

178 (10.4%)

6 (11.1%)

20 (23.8%)

0.0001

COPD

74 (4.31%)

6 (11.3%)

8 (9.52%)

0.01

Chronic liver disease

53 (3.19%)

1 (1.89%)

4 (4.71%)

0.63

Chronic kidney disease

117 (7.09%)

6 (11.1%)

19 (22.6%)

 < 0.0001

Steroid users

62 (3.60%)

7 (13.4%)

9 (10.6%)

 < 0.0001

Immunosuppressive drug users

34 (1.98%)

0 (0%)

3 (3.53%)

0.35

  1. Data are expressed as number (percentage) or mean ± standard deviation (SD)
  2. **p < 0.01 
  3.  aComparison of patients without infection versus patients with community-acquired co-infection
  4.  bComparison of patients without infection versus patients with hospital-acquired secondary infection
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BMC Pulmonary Medicine

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