AmpC β-Lactamase Variable Expression in Common Multidrug-Resistant Nosocomial Bacterial Pathogens from a Tertiary Hospital in Cairo, Egypt

Table 3

Mean fold change of AmpC expression among the isolates of bacterial species isolated from urine, sputum, or wound swab samples and included in this study.

Bacterial species and mean fold of AmpC expression		Clinical specimen			value
		Urine	Sputum	Wound swab
P. aeruginosa	Mean fold change of AmpC expression ± SE	0.799 ± 0.194	1.57 ± 0.821	0.538 ± 0.44	0.3278
	Number (%)	13 (54.17%)	3 (12.50%)	8 (33.33%)
K. pneumoniae	Mean fold change of AmpC expression ± SE	1.12 ± 0.3	1.17 ± 0.232	1.39 ± 0.531	0.9004
	Number (%)	18 (40.91%)	21(47.73%)	5 (11.36%)
E. faecium	Mean fold change of AmpC expression ± SE	1.03 ± 0.908	1.09 ± 0.461	0.835 ± 0.787	0.9869
	Number (%)	25 (58.14%)	4 (9.30%)	14 (32.56%)
Total		56 (50.45%)	28 (25.23%)	27 (24.32%)