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Table 2 The distribution of resistance determinants among the carbapenem resistance enterobacteraceae isolates

From: Epidemiological characteristics of carbapenem-resistant Enterobacteriaceae collected from 17 hospitals in Nanjing district of China

Resistant determinants

K. pneumoniae (n = 77)

K. oxytoca (n = 2)

E. coli (n = 11)

S. marcescens (n = 1)

C. freundii (n = 4)

E. cloacae (n = 2)

Enterobacter (n = 20)

P value (K. pneumoniae Vs E. coli)

P value (K. pneumoniae Vs Enterobacter)

blaKPC-2 (n = 77)

70

0

3

1

2

1

7

0.000

0.000

blaNDM (n = 19)

5

1

11

0

1

1

14

0.000

0.000

blaCTX-M (n = 74)

59

0

10

1

4

0

15

0.493

0.879

blaCTX-M-15 (n = 18)

16

0

2

0

0

0

2

1.000

0.434

blaCTX-M-65 (n = 34)

32

0

1

0

1

0

2

0.081

0.018

blaSHV (n = 59)

49

0

5

0

3

2

10

0.247

0.266

blaSHV-11(n = 23)

18

0

3

0

1

1

5

1.000

0.879

blaTEM (n = 73)

60

1

8

0

2

2

13

1.000

0.233

blaTEM-1B(n = 71)

60

1

7

0

1

2

11

0.508

0.039

blaOXA (n = 16)

8

1

4

0

3

0

8

0.060

0.001

blaOXA-1 (n = 14)

8

1

4

0

1

0

6

0.060

0.026

pAmpCs (n = 22)

9

3

3

1

5

1

13

0.348

0.000

blaDHA-1 (n = 10)

7

1

0

0

2

0

3

0.000

0.718

oqxAB (n = 68)

62

0

2

1

2

1

6

0.000

0.000

Qnr (n = 62)

37

3

16

1

5

0

25

0.021

0.000

qnrB4 (n = 10)

7

1

0

0

2

0

3

0.339

0.718

qnrS1 (n = 34)

27

1

4

1

1

0

7

0.309

0.996

aac(6′)Ib-cr (n = 22)

14

0

4

0

3

1

8

1.000

0.038

rmtB (n = 46)

41

0

2

0

2

1

5

0.001

0.024

fosA (n = 74)

71

0

0

0

1

2

3

0.000

0.000

fosA3 (n = 36)

31

1

3

0

1

0

5

0.065

0.208