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Table 3 Antimicrobial resistant rates of common pathogens in adult medical–surgical intensive care unit during 2000–2008

From: Surveillance on secular trends of incidence and mortality for device–associated infection in the intensive care unit setting at a tertiary medical center in Taiwan, 2000–2008: A retrospective observational study

Isolated pathogen

Resistant rate (%)

pvalue

 

2000

2001

2002

2003

2004

2005

2006

2007

2008

Overall

 

Staphylococcus aureus, n

74

47

38

26

18

7

20

17

9

256

 

Methicillin–R S. aureus

94.6

91.5

100

96.2

100

85.7

100

94.1

77.8

94.9

0.414

Escherichia coli, n

12

9

9

11

8

6

7

8

8

78

 

Ceftriaxone–R E. coli

50

22.2

22.2

18.2

50

33.3

28.6

62.5

50

37.2

0.314

Ceftazidime–R E. coli

25

22.2

33.3

18.2

62.5

33.3

42.9

62.5

50

37.2

0.039*

Ciprofloxacin–R E. coli

22.2

33.3

54.5

75

83.3

71.4

87.5

37.5

47.4

0.046*

ESBL E. coli

14.3

50.0

50.0

39.1

0.176

Klebsiella pneumoniae, n

9

16

9

8

17

8

14

17

11

109

 

Ceftriaxone–R K. pneumoniae

66.7

18.8

55.6

75

52.9

75

71.4

88.2

36.4

58.7

0.053

Ceftazidime–R K. pneumoniae

22.2

25.0

44.4

75

76.5

75

71.4

88.2

36.4

58.7

0.002*

Ciprofloxacin–R K. pneumoniae

43.8

33.3

37.5

70.6

50

78.6

58.8

27.3

48.6

0.507

ESBL K. pneumoniae

42.9

64.7

27.3

47.6

0.532

Pseudomonas aeruginosa, n

25

14

15

16

16

23

21

23

18

171

 

Ceftazidime–R P. aeruginosa

24

14.3

13.3

12.5

6.3

26.1

28.6

17.4

16.7

18.7

0.846

Cefepime–R P. aeruginosa

6.3

6.3

0

0

0

11.1

2.3

0.715

Imipenem–R P. aeruginosa

8

14.3

6.7

0

12.5

22

0

0

16.7

8.8

0.812

Acinetobacter baumannii, n

22

32

28

33

21

19

23

21

26

225

 

Imipenem–R A. baumannii

0

9.4

7.1

30.3

38.1

15.8

17.4

14.3

65.4

22.2

<0.001*

  1. R: resistant, ESBL: Expanded Spectrum Beta-Lactamase producing strains.
  2. *p < 0.05.
  3. –: antibiotic susceptibilities in that year were not determined using disk diffusion tests.