Research Article

Prevalence of Multidrug Resistance and Extended-Spectrum β-Lactamase Carriage of Clinical Uropathogenic Escherichia coli Isolates in Riyadh, Saudi Arabia

Table 4

Antibiotic resistance rates of E. coli isolates tested in this study.

AntibioticNumber (%) of resistant isolates
ESBL producing ()Non-ESBL producing ()Total ()

Ampicillin33 (100%)59 (88%)92 (92%)
Amoxicillin-clavulanic acid29 (88%)26 (39%)55 (55%)
Gentamicin9 (27%)3 (4.5%)12 (12%)
Ceftazidime28 (85%)1 (1.5%)29 (29%)
Cefoxitin6 (18%)7 (10.5%)13 (13%)
Tetracycline23 (70%)26 (39%)49 (49%)
Trimethoprim-sulfamethoxazole27 (82%)27 (40%)54 (54%)
Imipenem0 (0%)0 (0%)0 (0%)
Ciprofloxacin25 (76%)15 (22%)40 (40%)
Nitrofurantoin7 (21%)8 (12%)15 (15%)