Table 3.
Nonsusceptibility of Outpatient Urine E. coli Isolates to Individual Antibiotics at KPSC and Sutter Health, 2015–2017
| KPSC (n = 325 344) | Sutter Health (n = 99 691) | |||
|---|---|---|---|---|
| Antibiotic | Tested, No. (%) | Nonsusceptible of Tested, No. (%) | Tested, No. (%) | Nonsusceptible of Tested, No. (%) |
| Ampicillin | 226 134 (69.5) | 100 977 (44.7) | 97 906 (98.2) | 40 431 (40.6) |
| TMP-SMZ | 226 079 (69.5) | 58 322 (25.8) | 97 875 (98.2) | 22 419 (22.5) |
| Cefazolin | 226 128 (69.5) | 20 681 (9.1) | 97 710 (98.0) | 1981 (8.1) |
| Ciprofloxacin | 226 135 (69.5) | 38 660 (17.1) | 97 909 (98.2) | 15 238 (15.6) |
| Gentamicin | 226 129 (69.5) | 18 187 (8.0) | 97 910 (98.0) | 6724 (6.9) |
| Nitrofurantoin | 226 108 (69.5) | 1684 (0.7) | 97 739 (98.0) | 937 (1.0) |
| Piperacillin/tazobactam | 226 032 (69.5) | 4436 (2.0) | 93 797 (94.1) | 911 (1.0) |
Abbreviations: KPSC, Kaiser Permanente Southern California; TMP-SMZ, trimethoprim/sulfamethoxazole.