TABLE 4.
Distribution of papA alleles according to the presence or absence of iha and iroNE. coli
| Associated papA allelea | No. (% of total) | Prevalence (no. [%]) of associated papA allele
|
|||||
|---|---|---|---|---|---|---|---|
|
iha
|
P valueb |
iroNE. coli
|
P value | ||||
| Present (n = 37) | Absent (n = 30) | Present (n = 26) | Absent (n = 41) | ||||
| F7-1 | 2 (3) | 2 (5) | 0 | 0 | 2 (5) | ||
| F7-2 | 11 (16) | 10 (27) | 1 (3) | 0.017 | 6 (23) | 5 (12) | |
| F8 | 2 (3) | 2 (5) | 0 | 1 (4) | 1 (2) | ||
| F9 | 1 (1) | 1 (3) | 0 | 0 | 1 (2) | ||
| F10 | 18 (27) | 15 (41) | 3 (10) | 0.006 | 9 (35) | 9 (22) | |
| F11 | 15 (22) | 1 (3) | 14 (47) | (<0.001)c | 5 (19) | 10 (24) | |
| F12 | 3 (4) | 3 (8) | 0 | 0 | 3 (7) | ||
| F13 | 2 (3) | 2 (5) | 0 | 2 (8) | 0 | ||
| F14 | 6 (9) | 4 (11) | 2 (7) | 5 (19) | 1 (2) | 0.029 | |
| F15 | 1 (1) | 1 (3) | 0 | 0 | 1 (2) | ||
| F16 | 8 (12) | 8 (22) | 0 | 0.007 | 1 (4) | 7 (17) | |
| F48 | 4 (6) | 3 (8) | 1 (3) | 1 (4) | 3 (7) | ||
a
As determined by PCR (16). papA alleles F7-1 through F16 correspond with the traditionally recognized P fimbrial F serotypes. F48 is a recently described novel papA allele.
b
P values (by Fisher's exact test) shown only where <0.10.
c
Parentheses indicate a negative association of iha with F11.