Fig 3. Frequency of β-lactamase producing tested isolates by phenotypic analysis.
A. ESBL producers, B. AmpC producers, C. Carbapenemase producers. A statistically significant difference was detected between ESBL producers and carbapenemase producers among K. pneumoniae and similarly among E. coli without a significant difference between ESBL producers and AmpC producers in either type. Results were analyzed with Z-test for proportion with p<0.05*.