TABLE 1.

Distribution of phylogenetic groups, O antigens, and papA alleles (P fimbriae structural subunit) by source group among 329 Escherichia coli isolates from women with cystitis or pyelonephritis and uninfected women

TraitaPrevalence of trait (no. [%]) among isolate group (n):P valueb
Total (329)Fecal (76)Cystitis (83)Pyeloc (170)Fecal vs cystitis isolatesFecal vs pyelo isolatesCystitis vs pyelo isolates
Group A37 (11)9 (12)15 (18)13 (8)0.02
Group B123 (7)9 (12)12 (14)2 (1)0.001<0.001
Group B2197 (60)40 (53)37 (45)120 (71)0.009<0.001
Group D72 (22)18 (24)19 (23)35 (21)
O262 (19)14 (18)8 (10)40 (24)0.01
O1610 (3)1 (1)09 (5)0.03
O7522 (7)2 (3)2 (2)18 (11)0.040.03
O-UTI185 (56)35 (46)35 (42)115 (67)0.002<0.001
F7-1 papA allele17 (5)2 (3)015 (9)0.003
F7-2 papA allele16 (5)02 (2)14 (8)0.006
F10 papA allele51 (16)7 (9)7 (8)37 (21)0.020.008
F14 papA allele26 (8)2 (3)4 (9)20 (12)0.03
F16 papA allele31 (9)2 (3)10 (12)19 (11)0.030.03
  • a Only those O antigens and papA alleles are shown that yielded a P value of <0.05 in both the initial screen for heterogeneity among groups and at least one pairwise comparison.

  • b P values (by Fisher's exact test) are shown where P is <0.05.

  • c Pyelo, pyelonephritis.