TABLE 5.
Prevalence of single-drug and multidrug resistance among 38,835 E. coli urinary tract isolates tested against all five antimicrobials by geographic region (as reported to TSN 1 January to 30 September 2000)
| Region | % Single-drug resistance | % Multidrug resistance | Most prevalent MDR phenotype |
|---|---|---|---|
| East North Central | 22.7 | 5.8 | Ampicillin, cephalothin, SXT |
| East South Central | 23.5 | 6.0 | Ampicillin, cephalothin, SXT |
| Mid-Atlantic | 19.4 | 7.8 | Ampicillin, cephalothin, SXT |
| Mountain | 19.1 | 6.6 | Ampicillin, cephalothin, SXT |
| New England | –a | – | – |
| Pacific | 19.9 | 8.4 | Ampicillin, cephalothin, SXT |
| South Atlantic | 19.9 | 6.7 | Ampicillin, cephalothin, SXT |
| West North Central | 21.4 | 4.3 | Ampicillin, cephalothin, SXT |
| West South Central | 18.3 | 9.2 | Ampicillin, cephalothin, SXT |
| All regions | 20.0 | 7.2 | Ampicillin, cephalothin, SXT |
a
Cephalothin results were not reported by laboratories in the New England region participating in TSN; thus, no phenotype comparisons were possible for this region.