Table 2 AST results with Alfred 60AST compared to direct Phoenix for Gram-negative bacteria during Period I
Antibiotic | Categorical agreement (%) | Very major errors (%) | Major errors (%) | Minor errors (%) |
|---|---|---|---|---|
Cefuroxime | 56/60 (93.3) | 4/21 (19) | 0/39 | NA |
Ceftazidime EB | 58/68 (85.3) | 0/16 | 2/46 (4.3) | 8/68 (11.8) |
Piperacillin-tazobactam EB | 56/69 (81.2) | 2/13 (15.4) | 4/51 (7.8) | 7/69 (10.1) |
Ceftazidime PA | 4/5 (80) | 0/0 | 1/5 (20) | NA |
Ciprofloxacin | 74/75 (98.7) | 0/19 | 0/56 | 1/75 (1.3) |
Total | 248/277 (89.5) | 6/69 (8.7) | 7/197 (3.6) | 16/212 (7.5) |