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Table 2 Antimicrobial resistance of ESBL and non-ESBL producing E. coli in Dar es Salaam, Tanzania (n = 138)

From: Antimicrobial resistance among producers and non-producers of extended spectrum beta-lactamases in urinary isolates at a tertiary Hospital in Tanzania

Antibiotic

Resistance

n (%)

ESBL- Producing

n = 54

Non-ESBL producing

n = 84

P-value*

Cefotaxime

70(50.7%)

50(92.6)

20(23.8)

< 0.001

Ceftazidime

68(49.3%)

51(94.4)

17(20.2)

< 0.001

Ampicillin

133(96.4%)

53(98.1)

80(95.2)

0.37

Amoxycillin/

clavulanic acid

96(69.6%)

39(72.2)

57(67.9)

0.6

Imipenem

9 (6.5%)

4(7.4)

5(0.001)

0.7

Amikacin

15(10.9%)

6(11.1)

9(10.7)

0.9

Gentamicin

53(38.4%)

26(48.1)

27(32.1)

0.06

Nalidixic acid

57(41.3%)

28(61.6)

29(34.5)

0.04

Ciprofloxacin

42(30.4%)

25(46.3)

17(20.2)

0.001

Nitrofurantoin

31(22.5%)

11(20.4)

20(23.8)

0.6

Cotrimoxazole

111(80.4%)

49(90.7)

62(73.8)

0.014

Multi drug resistance

93 (67.4%)

47(87.0)

46(54.8%)

< 0.001

  1. *P value is for a comparison of resistance among ESBL-producers with that among non-producers.