Table 4. Proportion of selected organisms that are sensitive to representative antibacterial agents at two hospitals: antimicrobial stewardship teams with and without a dedicated infectious disease (ID) pharmacist.
| ID Pharmacist Hospital | Geographic Model Hospital | P* | |
| Escherichia coli | (N = 199) | (N = 350) | |
| Cefepime | 88% | 99% | <.0001 |
| Fluoroquinolones | 65% | 79% | .0005 |
| Imipenem-cilastin | 100% | 100% | NA |
| Klebsiella pneumoniae | (N = 123) | (N = 132) | |
| Cefepime | 80% | 99% | <.0001 |
| Fluoroquinolones | 80% | 97% | <.0001 |
| Imipenem-cilastin | 97% | 99% | .2 |
| Pseudomonas aeruginosa | (N = 254) | (N = 91) | |
| Cefepime | 64% | 80% | <.01 |
| Fluoroquinolones | 53% | 76% | <.0001 |
| Imipenem-cilastin | 71% | 84% | .02 |
Note: The ID Pharmacist Hospital has an antimicrobial stewardship program staffed by a full-time infectious diseases pharmacist. At the Geographic Model Hospital, ward pharmacists provide support for antimicrobial stewardship. Differences in categorical variables were assessed using chi-square analysis.
*
P < .05 was considered significant.