Skip to main content

Table 4 Comparison of virulence gene prevalence and phylogroup between weak and moderate-strong biofilm producers.

From: Biofilm formation as a novel phenotypic feature of adherent-invasive Escherichia coli(AIEC)

    Biofilm formation category  
  Total
(N = 65)
Moderate-Strong
(N = 26)
Weak
(N = 39)
P
Virulence gene N (%) N (%) N (%)  
Adhesin-encoding genes
papC 32 (49.2) 11 (42.3) 21 (53.8) 0.255
sfa/focDE 13 (20.0) 10 (38.5) 3 (7.7) 0.003
afa/draBC 8 (12.3) 2 (7.7) 6 (15.4) 0.301
fimH 62 (95.4) 26 (100) 36 (92.3) 0.209
fimAv MT78 14 (21.5) 6 (23.1) 8 (20.5) 0.520
Protectin/invasion-encoding genes
ibeA 9 (13.8) 7 (26.9) 2 (5.1) 0.017
K1 neuC 9 (13.8) 3 (11.5) 6 (15.4) 0.478
Siderophore-related genes
iucD 37 (56.9) 13 (50.0) 24 (61.5) 0.253
Toxin-encoding genes
hlyA 15 (23.1) 9 (34.6) 6 (15.4) 0.067
cnf1 15 (23.1) 9 (34.6) 6 (15.4) 0.067
cdtB 5 (7.7) 3 (11.5) 2 (5.1) 0.312
Phylogroup
A 9 (13.8) 1 (3.8) 8 (21.1) 0.052
B1 8 (12.3) 3 (11.5) 5 (13.2) 0.583
B2 34 (52.3) 21 (80.8) 13 (34.2) < 0.001
D 13 (20.0) 1 (3.8) 12 (31.6) 0.006