Table 5.
Results for non-fermenting Gram-neg bacilli tested with the MICNEG1 standard turbidity inoculum method and visual reading versus AST reference methods.
| No. of Isolates AST Reference a |
No. of Isolates MICPNEG1 b | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Antimicrobial | Total | R | I | S | R | I | S | CA c (no. [%]) |
mE d (no. [%]) |
ME e (no. [%]) |
VME f (no. [%]) |
| Ceftazidime | 15 | 8 | 3 | 4 | 8 | 2 | 5 | 14 (96) | 1 (4) | 0 (0) | 0 (0) |
| Piperacillin/Tazobactam | 15 | 4 | 0 | 11 | 4 | 0 | 11 | 15 (100) | 0 (0) | 0 (0) | 0 (0) |
| Ciprofloxacin | 29 | 12 | 6 | 11 | 12 | 6 | 11 | 29 (100) | 0 (0) | 0 (0) | 0 (0) |
| Amikacin | 29 | 7 | 2 | 20 | 7 | 2 | 20 | 29 (100) | 0 (0) | 0 (0) | 0 (0) |
| Gentamicin | 29 | 15 | 0 | 14 | 15 | 0 | 14 | 29 (100) | 0 (0) | 0 (0) | 0 (0) |
| Trimethoprim/Sulfamethoxazole | 29 | 10 | 0 | 20 | 9 | 1 | 20 | 28 (99) | 1 (1) | 0 (0) | 0 (0) |
| Chloramphenicol | 9 | 4 | 3 | 2 | 4 | 3 | 2 | 9 (100) | 0 (0) | 0 (0) | 0 (0) |
| Colistin | 15 | 3 | 0 | 12 | 3 | 0 | 12 | 15 (100) | 0 (0) | 0 (0) | 0 (0) |
| Meropenem | 45 | 14 | 6 | 25 | 14 | 6 | 25 | 43 (96) | 2 (4) | 0 (0) | 0 (0) |
| Imipenem | 29 | 12 | 0 | 17 | 10 | 1 | 18 | 27 (94) | 1 (3) | 0 (0) | 1 (3) |
a Number of isolates tested with the reference method and classified as R resistant; I, susceptible, increased exposure; S, susceptible; b number of isolates tested with the evaluated method and classified as R resistant; I, susceptible, increased exposure; S, susceptible; c CA, categorical agreement; d mE, minor error; e ME, major error; f VME, very major error.