Table 1.
Phylogenetic analysis of E. coli isolates from community-acquired ABU or health care-associated patients
| Phylogenetic group | Prevalence (%) relative to total no. of isolates |
Statistical significance of prevalencea |
||||
|---|---|---|---|---|---|---|
| Community-acquired ABU (n = 87) | Health care-associated ABU (n = 25) | Commensal (n = 39) | Community-acquired ABU vs health care-associated ABU | Community-acquired ABU vs commensal | Health care-associated ABU vs commensal | |
| A | 13.79 | 20.00 | 20.51 | — | — | — |
| A×B1 | 3. 45 | 12.00 | 30.77 | — | *** | — |
| B1 | 18.39 | 4.00 | 7.69 | — | — | — |
| ABD | 12.64 | 8.00 | 15.38 | — | — | — |
| D | 2.30 | 8.00 | 5.13 | — | — | — |
| B2 | 49.43 | 48.00 | 20.51 | — | ** | * |
a
Two-way comparisons were performed for each phylogenetic lineage between the different groups examined using Fisher's exact test. For each comparison, a P value of <0.05 (*), a P value of <0.005 (**), and a P value of <0.001 (***) were considered statistically significant, while a P value of >0.05 (—) was considered not statistically significant.