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Table 3 Distribution of antibiotic resistant UPEC isolates according to ESBL production

From: Distribution of virulence genes and their association with antimicrobial resistance among uropathogenic Escherichia coli isolates from Iranian patients

Antibiotic

ESBL-negative

ESBL-positive

P value

Resistant No. (%)

Resistant No. (%)

Co-trimoxazole

36 (63.2)

55 (79.7)

0.039

Ampicillin

43 (75.4)

69 (100)

< 0.001

Nalidixic acid

35 (61.4)

67 (97.1)

< 0.001

Amikacin

2 (3.5)

8 (11.6)

0.095

Nitrofurantoin

2 (3.5)

4 (5.8)

0.54

Ceftazidime

13 (22.8)

69 (100)

< 0.001

Imipenem

0

1 (1.4)

0.36

Gentamicin

5 (8.8)

20 (29)

0.005

Ciprofloxacin

25 (43.9)

45 (65.2)

0.016

Cefoxitin

17 (29.8)

9 (13)

0.021

  1. Abbreviations: UPEC = Uropathogenic Escherichia coli, ESBL = extended-spectrum β- lactamase