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Table 4 Univariate predictors of 30-day mortality among patients with bloodstream infections

From: Clinical characteristics in blood stream infections caused by Klebsiella pneumoniae, Klebsiella variicola, and Klebsiella quasipneumoniae: a comparative study, Japan, 2014–2017

Characteristics of patients

Total = 100

Fatal = 11

Survivors = 89

p-value

n

%

N

%

n

%

Age, median, years

75.0

 

77.0

 

75.0

   

Male sex

70

(70.0)

6

(54.5)

64

(71.9)

0.30

 

Age > 80 years

27

(27.0)

4

(36.4)

23

(25.8)

0.48

 

Comorbidities

 Diabetes mellitus

29

(29.0)

5

(45.5)

24

(27.0)

0.29

 

 Malignancy

41

(41.0)

3

(27.3)

38

(42.7)

0.52

 

 Liver cirrhosis

10

(10.0)

3

(27.3)

7

(7.9)

0.08

 

 Collagen disease

8

(8.0)

1

(9.1)

7

(7.9)

1.00

 

 Chronic kidney disease

3

(3.0)

1

(9.1)

2

(2.2)

0.30

 

 Pulmonary disease

4

(4.0)

1

(9.1)

3

(3.4)

0.38

 

 Mental disorder

7

(7.0)

3

(27.3)

4

(4.5)

< 0.05

*

 Immunosuppressive drug

12

(12.0)

1

(9.1)

11

(12.4)

1.00

 

 Neutropenia

7

(7.0)

0

(0)

7

(7.9)

1.00

 

Source of infection

 Pneumonia

6

(6.0)

0

(0)

6

(6.7)

1.00

 

 Skin and soft-tissue

4

(4.0)

2

(18.2)

2

(2.2)

< 0.05

*

 Abdominal

37

(37.0)

3

(27.3)

34

(38.2)

0.74

 

 Urinary tract

27

(27.0)

2

(18.2)

25

(28.1)

0.72

 

Other

 Hospital-acquired infection

52

(52.0)

6

(54.5)

46

(51.7)

1.00

 

 Appropriate antibiotic therapy within 24 h

96

(96.0)

11

(100.0)

85

(95.5)

1.00

 

Bacterial characteristics

K. pneumoniae

73

(73.0)

8

(72.7)

65

(73.0)

1.00

 

K. variicola

19

(19.0)

2

(18.2)

17

(19.1)

1.00

 

K. quasipneumoniae

8

(8.0)

1

(9.1)

7

(7.9)

1.00

 

 K1 serotype

14

(14.0)

3

(27.3)

11

(12.4)

0.18

 

 K2 serotype

13

(13.0)

0

(0)

13

(14.6)

0.35

 

 Hypermucoviscous phenotype

23

(23.0)

3

(27.3)

20

(22.5)

0.71

 
  1. CRBSI Catheter-related bloodstream infection
  2. *Asterisk indicates a statistical significant difference among the groups