TABLE 4.
Reveal AST results for E. coli by antimicrobial against Sensititre (for 66 strains) and Vitek 2 (for 67 strains) reference comparators
| Antimicrobial | Avg TTR (h) | Sensititre as reference |
Vitek 2 as reference |
||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of strains |
% Agreement (no./66) |
No. of errors |
No. of strains |
% Agreement (no./67) |
No. of errors |
||||||||||||
| S | I | R | EA | CA | mE | ME | VME | S | I | R | EA | CA | mE | ME | VME | ||
| Ampicillin | 3.6 | 24 | 0 | 42 | 100 (66) | 90.9 (60) | 6 | 0 | 0 | 23 | 1 | 43 | 94.0 (63) | 89.6 (60) | 7 | 0 | 0 |
| Piperacillin | 4.4 | 35 | 14 | 17 | 95.5 (63) | 90.9 (60) | 5 | 0 | 1 | ||||||||
| Ampicillin-sulbactam | 5.0 | 35 | 20 | 11 | 100 (66) | 62.1 (41) | 25 | 0 | 0 | 30 | 12 | 25 | 94.0 (63) | 83.6 (56) | 11 | 0 | 0 |
| Piperacillin-tazobactam | 4.5 | 65 | 1 | 0 | 98.5 (65) | 98.5 (65) | 1 | 0 | 66 | 0 | 1 | 100 (67) | 100 (67) | 0 | 0 | 0 | |
| Cefazolin | 4.2 | 54 | 0 | 12 | 93.9 (62) | 100 (66) | 0 | 0 | 0 | 53 | 2 | 12 | 100 (67) | 97.0 (65) | 2 | 0 | 0 |
| Cefepime | 5.2 | 54 | 1 | 11 | 89.4 (59) | 100 (66) | 0 | 0 | 0 | 55 | 1 | 11 | 89.6 (59) | 100 (67) | 0 | 0 | 0 |
| Cefotaxime | 4.0 | 54 | 0 | 12 | 100 (66) | 100 (66) | 0 | 0 | 0 | ||||||||
| Cefoxitin | 4.1 | 63 | 2 | 1 | 98.5 (65) | 90.9 (60) | 6 | 0 | 0 | ||||||||
| Ceftazidime | 4.9 | 58 | 4 | 4 | 100 (66) | 95.5 (63) | 3 | 0 | 0 | ||||||||
| Ceftriaxone | 4.1 | 54 | 0 | 12 | 100 (66) | 100 (66) | 0 | 0 | 0 | 55 | 0 | 12 | 98.5 (66) | 100 (67) | 0 | 0 | 0 |
| Aztreonam | 5.3 | 54 | 0 | 12 | 97.0 (64) | 100 (66) | 0 | 0 | 0 | 55 | 0 | 12 | 100 (67) | 100 (67) | 0 | 0 | 0 |
| ESBL screen | 4.1 | 54 | 0 | 12 | NA | 100 (66) | 0 | 0 | 0 | 55 | 0 | 12 | NA | 100 (67) | 0 | 0 | 0 |
| Ertapenem | 6.2 | 66 | 0 | 0 | 100 (66) | 100 (66) | 0 | 0 | 66 | 0 | 1 | 98.5 (66) | 98.5 (66) | 0 | 0 | 1 | |
| Imipenem | 5.0 | 66 | 0 | 0 | 98.5 (65) | 98.5 (65) | 1 | 0 | |||||||||
| Meropenem | 6.6 | 66 | 0 | 0 | 92.4 (61) | 92,4 (61) | 4 | 1 | 66 | 0 | 1 | 92.4 (61) | 91.0 (61) | 4 | 1 | 1 | |
| Amikacin | 4.1 | 66 | 0 | 0 | 100 (66) | 100 (66) | 0 | 0 | 67 | 0 | 0 | 100 (67) | 100 (67) | 0 | 0 | ||
| Gentamicin | 4.1 | 60 | 0 | 6 | 100 (66) | 100 (66) | 0 | 0 | 0 | 61 | 0 | 6 | 100 (67) | 100 (67) | 0 | 0 | 0 |
| Tobramycin | 4.5 | 61 | 0 | 5 | 100 (66) | 96.9 (64) | 2 | 0 | 0 | 60 | 3 | 4 | 100 (67) | 98.5 (66) | 1 | 0 | 0 |
| Ciprofloxacin | 3.8 | 47 | 0 | 19 | 98.5 (65) | 98.5 (65) | 0 | 1 | 0 | 47 | 0 | 20 | 97.0 (65) | 98.5 (66) | 0 | 1 | 0 |
| Levofloxacin | 3.8 | 47 | 0 | 19 | 98.5 (65) | 98.5 (65) | 1 | 0 | 0 | ||||||||
| Tetracycline | 4.0 | 45 | 0 | 21 | 98.5 (65) | 98.5 (65) | 0 | 1 | 0 | ||||||||
| Tigecycline | 4.1 | 66 | 0 | 0 | 100 (66) | 100 (66) | 0 | 0 | 67 | 0 | 0 | 100 (67) | 100 (67) | 0 | 0 | ||
| Nitrofurantoin | 4.2 | 64 | 2 | 0 | 100 (66) | 96.9 (64) | 2 | 0 | 65 | 1 | 1 | 100 (67) | 98.5 (66) | 1 | 0 | 0 | |
| Trimethoprim-sulfa | 3.7 | 42 | 0 | 24 | 100 (66) | 100 (66) | 0 | 0 | 0 | 44 | 0 | 23 | 98.5 (66) | 98.5 (66) | 0 | 1 | 0 |