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Table 1 blaKPC and virulence-associated factors of the 285 K. pneumoniae isolated from BSIs

From: Bloodstream infections caused by Klebsiella pneumoniae: prevalence of blaKPC, virulence factors and their impacts on clinical outcome

Characteristics

Total (n = 285)

bla KPC +

bla KPC

P valuea

HMKP

cKP

P valueb

(n = 95)

(n = 190)

(n = 69)

(n = 216)

bla KPC

95 (33.3)

3 (4.3)

92 (42.6)

< 0.001

Virulence factors

 HM phenotype

69 (24.2)

3 (3.2)

66 (34.7)

< 0.001

 K1

28 (9.8)

1 (1.1)

27 (14.2)

< 0.001

18 (26.1)

10 (4.6)

< 0.001

 K2

22 (7.7)

0

22 (11.6)

0.001

21 (30.4)

1 (0.5)

< 0.001

 K5

3 (1.1)

0

3 (1.6)

0.55

2 (2.9)

1 (0.5)

0.15

 K20

3 (1.1)

1 (1.1)

2 (1.1)

0.99

2 (2.9)

1 (0.5)

0.15

 K54

6 (2.1)

0

6 (3.2)

0.18

4 (5.8)

2 (0.9)

0.03

 K57

3 (1.1)

0

3 (1.6)

0.55

3 (4.3)

N

0.01

 K-nontypable

220 (77.2)

93 (97.9)

127 (66.8)

< 0.001

19 (27.5)

201 (93.1)

< 0.001

magA

24 (8.4)

0

24 (12.6)

< 0.001

17 (24.6)

7 (3.2)

< 0.001

rmpA

90 (31.6)

2 (2.1)

88 (46.3)

< 0.001

62 (89.9)

28 (13.0)

< 0.001

  1. Data are presented as No. (%) unless otherwise specified
  2. Abbreviations: HM hypermucoviscous, HMKP hypermucoviscous K. pneumoniae, cKP classic K. pneumoniae
  3. ablaKPC+ vs blaKPC
  4. bHMKP vs cKP