Virulence genes Prevalence of gene, no. (Column %) P value
A(N=8) B1(N=7) B2(N=19) D(N=30) D vs B2 D vs A& B1
iutA 3(37.5) 2(28.6) 15(78.9) 21(70.0) 0.719 0.043
ompT 0(0.0) 2(28.6) 14(73.7) 12(40.0) 0.021 0.139
fyuA 1(12.5) 1(14.3) 16(84.2) 24(80.0) 1.000 0.000
fdeC 6(75.0) 6(85.7) 17(89.5) 16(53.3) 0.021 0.158
fimH 6(75.0) 6(85.7) 18(94.7) 27(90.0) 0.956 0.642
traT 4(50.0) 4(57.1) 12(63.2) 27(90.0) 0.056 0.016
cvaC 0(0.0) 0(0.0) 1(5.3) 1(3.3) 1.000 1.000
kpsMT 0(0.0) 1(14.3) 12(63.2) 21(70.0) 0.619 0.000
pap 0(0.0) 1(14.3) 7(36.8) 6(20.0) 0.913 0.647
PAI 0(0.0) 0(0.0) 7(36.8) 1(3.3) 0.007 1.000
usp 0(0.0) 0(0.0) 15(78.9) 0(0.0) 0.000 1.000
chuA 0(0.0) 0(0.0) 19(100.0) 30(100.0) ND ND
ND: not determined.
Table 2: Phylogenetic group distribution of virulence-associated genes among 64 Escherichia coli isolates associated with acute pyelonephritis.