Characterization of Escherichia coli isolated from urinary tract infection and association between virulence expression and antimicrobial susceptibility

Table 3 Distribution of virulence genes according to antibiotic susceptibility among 120 Escherichia coli isolated from urinary tract infection

Antibiotics	Prevalence of pap (%) in		Prevalence of hlyA (%) in		Prevalence of cnf (%) in
Antibiotics	^bSus. isolates	Res. isolates	Sus. isolates	Res. isolates	Sus. isolates	Res. isolates
CIP (n^a = 40)	35	31.2	35	15*	22.5	15
TS (n = 34)	29.4	33.7	26.5	19.8	11.8	19.8
GM (n = 62)	32.3	32.8	17.7	25.9	16.1	19
Cax (n = 66)	33.3	31.5	28.8	13*	19.7	14.8
TE (n = 49)	30.6	33.8	28.6	16.9	18.4	16.9
NX (n = 74)	32.4	32.6	24.3	17.4	16.2	19.6
Caz (n = 77)	35.1	27.9	27.3	11.6*	22.1	9.3
NA (n = 53)	32.1	32.8	26.4	17.9	22.6	13.4
AK (n = 89)	29.2	41.9	22.5	19.4	13.5	29
Cpe (n = 55)	34.5	30.8	30.9	13.8*	23.6	12.3
Azt (n = 74)	33.8	30.4	25.7	15.2	20.3	13

Abbreviation: CIP Ciprofloxacin, TS Trimethoprim-sulfamethoxazole, GM Gentamicin, Cax Ceftriaxone, TE Tetracycline, NX Norfloxacin, Caz Ceftazidime, NA Nalidixic acid, AK Amikacin, Cpe Cefepime, Azt Aztreonam
^an = Number of susceptible isolates to the antibiotic
^bSus. Susceptible, Res. Resistant
^*Comparison yielded a P value of < 0.05

ISSN: 1471-2180