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Table 2 The association between virulence factors and C3-dependent internalisation in urine isolates.

From: Synergy between type 1 fimbriae expression and C3 opsonisation increases internalisation of E. coli by human tubular epithelial cells

Bacterial virulence factors Strains demonstrating C3-dependent internalisation Strains not demonstrating C3-dependent internalisation Fischer's exact test
Type 1 fimbriae 7/7 (100%) 2/9 (22.2%) P = 0.0032*
P fimbriae 1/7 (14.3%) 1/9 (11.1%) nsd
CNF1 3/7 (42.9%) 3/9 (33.3%) nsd
Serum resistance 7/7 (100%) 7/9 (77.8%) nsd
Haemolysin 2/7 (28.6%) 3/9 (33.3%) nsd
  1. The strength of association between virulence factors and C3-dependent internalisation was determined using Fischer's exact test.