Table 2.

ompA prevalence in E. coli strains isolated from difference sources.

Source of E. coli Isolate	No. of Strains	ompA	* p-Value
		No. (%)
Human feces	23	10 (43)	-
Cattle	45	26 (58)	0.3108
STEC, EAEC & DEC strains from human patients	10	7 (70)	0.2587
E. coli strains associated with UTIs	70	38 (54)	0.4720
Total	148	81 (55)	0.2617

* p-value of two-tailed Fisher’s exact test comparing human feces isolates.