Table 6.
Prevalence of the MIGs stratified by phylogeny
| Gene | No. (%) of E. coli isolatesa |
P valueb |
|||||
|---|---|---|---|---|---|---|---|
| Fecal isolates (n = 42, n = 25) |
Cystitis isolates (n = 45, n = 13) |
Pyelonephritis isolates (n = 48, n = 20) |
Urosepsis isolates (n = 45, n = 16) |
Cystitis vs fecal | Pyelonephritis vs fecal | Urosepsis vs fecal | |
| Group B2 | |||||||
| cjrABC-senB | 10 (24) | 14 (31) | 18 (38) | 71 (38) | − | − | − |
| sivH | 21 (50) | 35 (78) | 36 (75) | 30 (67) | 0.008 | 0.017 | − |
| shiA | 19 (45) | 34 (76) | 45 (94) | 39 (87) | 0.005 | <0.001 | <0.001 |
| sisA | 19 (45) | 33 (73) | 45 (94) | 39 (87) | 0.009 | <0.001 | <0.001 |
| sisB | 1(2) | 14 (31) | 12 (25) | 13 (29) | <0.001 | 0.002 | 0.001 |
| eco274 | 15(36) | 10 (22) | 12 (25) | 15 (33) | − | − | − |
| fbpB | 17 (40) | 29 (64) | 30 (63) | 32 (71) | 0.032 | − | 0.005 |
| Group D | |||||||
| cjrABC-senB | 8 (32) | 10 (77) | 14 (70) | 6 (38) | 0.016 | 0.017 | − |
| sivH | 0 (0) | 1 (8) | 1 (5) | 0 (0) | − | − | − |
| shiA | 12 (48) | 12 (92) | 17 (85) | 13 (81) | 0.012 | 0.013 | − |
| sisA | 11 (44) | 12 (92) | 16 (80) | 12 (75) | 0.005 | 0.018 | − |
| sisB | 4 (16) | 4 (31) | 4 (20) | 5 (31) | − | − | − |
| eco274 | 16 (64) | 12 (92) | 17 (85) | 15 (94) | − | − | − |
| fbpB | 1(4) | 1 (8) | 2 (10) | 0 (0) | − | − | − |
a
n, total no. of isolates for group B2 and group D, respectively.
b
Only P values of <0.05 (by Fisher's exact test) are shown. −, P value of ≥0.05.