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Table 4 Drug resistance rates to antibiotics by ESBL-producing and non-ESBL producing KP strains

From: Clinical and computed tomography features of extended-spectrum β-lactamase-producing Klebsiella pneumoniae liver abscess

Antibiotics

ESBL (+)

n = 14

ESBL (−)

n = 86

P

Amikacin

0

0

1

Gentamicin

50%

1.16%

< 0.001

Levofloxacin

21.43%

3.49%

0.009

Ciprofloxacin

42.86%

2.33%

< 0.001

Imipenem

0

0.00%

1

Meropenem

0

0.00%

1

Aztreonam

71.43%

2.33%

< 0.001

Ampicillin

100%

83.72%

0.105

Ampicillin/Sulbactam

57.14%

1.16%

< 0.001

Cefepime

50%

3.49%

< 0.001

Cefuroxime

35.71%

2.33%

< 0.001

Cefoxitin

7.14%

2.33%

0.33

Cefazolin

92.86%

6.98%

< 0.001

Ceftriaxone

71.43%

1.16%

0.001

Ceftazidime

50%

0.00%

< 0.001

Tetracycline

21.43%

5.81%

0.047

Nitrofurantoin

21.43%

5.81%

0.047

Chloramphenicol

85.71%

8.14%

< 0.001

Cefmetazole

0

0.00%

1

Trimethoprim/sulfamethoxazole

50%

6.98%

< 0.001