Table 2.

Results of antibiotic resistance pattern of E. coli isolates by ESBL

Class	Antibiotics	Total E. coli N = 263		Non-ESBL-producing E. coli N = 142		ESBL-producing E. coli N = 121
		No.	%	No.	%	No.	%	P value
β-lactam/β-lactamase inhibitor	Amoxicillin/clavulanat	154	58.6	58	40.8	96	79.3	<0.001
β-lactam	Ampicilin	220	83.7	99	69.7	121	100	<0.001
Monobactams	Aztreonam	137	52.1	19	13.4	118	97.5	<0.001
Cephalosporins II	Cefoxitin	36	13.7	12	8.5	24	19.8	0.006
Cephalosporins III	Ceftazidime	145	55.1	30	21.1	115	95	<0.001
Cephalosporins III	Ceftriaxone	148	56.3	28	19.7	120	99.2	<0.001
Cephalosporins IV	Cefepime	104	39.5	12	8.5	92	76	<0.001
Carbapenem	Meropenem	2	0.8	1	0.7	1	0.8	0.709
Carbapenem	Imipenem	11	4.2	4	2.8	7	5.8	0.187
Aminoglycosides	Amikacin	37	14.1	20	14.1	17	14	0.569
Aminoglycosides	Gentamicin	54	20.5	11	7.7	43	35.5	<0.001
Quinolones	Norofloxacin	135	51.3	42	29.6	93	76.9	<0.001
Quinolones	Levofloxacin	134	51	41	28.9	93	76.9	<0.001
Quinolones	Ciprofloxacin	148	56.3	50	35.2	98	81	<0.001
Quinolones	Nalidixic acid	203	77.2	90	63.4	113	93.4	<0.001