Table 5.

The association between phenotypic and genotypic antibiotic resistance profiles of gulls and pigeon origin E. coli isolates

Drug group and resistance genes		Number of isolates carrying the resistance gene		χ²	P-value
Drug group and resistance genes		Resistant^a	Non-resistant^b	χ²	P-value
Tetracycline	tet(A)	44 (84.61%)	19 (39.5%)	21.71	< 0.001
Tetracycline	tet(B)	40 (76.92%)	26 (54.16%)	5.76	0.016
Streptomycin	strA/strB	16 (43.24%)	8 (12.69%)	11.92	0.001
Kanamycin	aphA1	31 (83.73%)	17 (27.42%)	27.68	< 0.001

^aIsolates that are phenotypically resistant to the indicated antibiotic and carry the resistance gene(s)

^bIsolates phenotypically susceptible or intermediately resistant to the indicated antibiotic but carry the resistance gene(s)