Extended-Spectrum β-Lactamase (ESBL) Genotypes among Multidrug-Resistant Uropathogenic Escherichia coli Clinical Isolates from a Teaching Hospital of Nepal

Table 3

Antibiotic susceptibilities of ESBL-producing and nonproducing uropathogenic E. coli isolates.

Antimicrobials	Escherichia coli urinary isolates
	Total	ESBL producers (n = 62)	ESBL nonproducers (n = 92)
	Susceptible (%)	Susceptible (%)	Susceptible (%)
Ampicillin	18 (11.7)	0 (0.0)	16 (17.3)	0.005
Piperacillin	48 (31.1)	8 (12.9)	40 (43.4)	≤0.001
Cefixime	78 (50.6)	0 (0.0)	78 (84.8)	≤0.001
Cefotaxime	82 (53.2)	4 (6.4)	78 (84.8)	≤0.001
Ceftazidime	84 (54.5)	4 (6.4))	80 (86.9)	≤0.001
Gentamycin	118 (76.6)	50 (80.6)	68 (73.9)	0.220
Cotrimoxazole	80 (51.9)	32 (51.6)	48 (52.1)	0.538
Nitrofurantoin	142 (92.2)	56 (90.3)	86 (93.4)	0.336
Ofloxacin	90 (58.4)	22 (35.4)	68 (73.1)	≤0.001
Imipenem	146 (94.8)	56 (90.3)	90 (97.8)	0.047
Meropenem	136 (88.3)	52 (83.8)	84 (91.3)	0.018