| Organism | CSGS | CSGR | CRGS | CRGR (%) | Total |
| Acinetobacter species | 6 | 4 | 7 | 3 (15) | 20 |
| Escherichia coli | 14 | 1 | 5 | 5 (20) | 25 |
| Enterobacter species | 11 | 2 | 12 | 3 (11) | 28 |
| Klebsiella species | 35 | 2 | 2 | 31 (44) | 70 |
| Proteus species | 0 | 0 | 2 | 1 (33) | 3 |
| Pseudomonas species | 3 | 1 | 6 | 6 (37) | 16 |
| Serratia species | 9 | 0 | 1 | 3 (23) | 13 |
| Other Gram-negative bacilli | 1 | 0 | 2 | 2 (40) | 5 |
| Total | 79 (44%) | 10 (6%) | 37 (21%) | 54 (30) | 180 |
C, third-generation cephalosporin (cefotaxime or ceftazidime for Pseudomonas); G, gentamicin; S, sensitive; R, resistant.