Table 3 Characteristics of large intestinal microbiota, bacteriocins and E . coli phylogroups in each investigated group of patients/controls

Number of biopsies with ≥1 strain belonging to Enterobacteriaceae family per all biopsies taken in each group

89/90 (99%)

89/90 (99%)

60/60 (100%)

Bacteriocinogeny

58/89 (65%)

61/89 (69%)

39/60 (65%)

Colicinogeny

31/89 (35%)

40/89 (45%)

24/60 (40%)

Microcinogeny

46/89 (52%)

53/89 (60%)

36/60 (60%)

Simultaneous colicinogeny and microcinogeny

19/89 (21%)

32/89 (36%)

21/60 (35%)

Frequency of E. coli from Enterobacteriaceae strains

77/89 (87%)

87/89 (98%)

48/60 (80%)

E. coli - phylogroup A

31/77 (40%)

30/87 (34%)

21/48 (44%)

E. coli - phylogroup B1

19/77 (25%)

18/87 (21%)

12/48 (25%)

E. coli - phylogroup B2

35/77 (45%)

41/87 (47%)

24/48 (50%)

E. coli - phylogroup D

16/77 (21%)

24/87 (28%)

6/48 (13%)