Table 1 Evaluation of essential and categorical agreement between the BMD method and Etest or disk diffusion method for analysis of ceftazidime-avibactam antimicrobial susceptibility
Organism | No. of isolates tested | No. of resistant isolates by BMD | E-test | Disk diffusion | |||||
|---|---|---|---|---|---|---|---|---|---|
No. (%) of CA | No. (%) of EA | No. (%) of VME | No. (%) of ME | No. (%) of CA | No. (%) of VME | No. (%) of ME | |||
Enterobacterales | |||||||||
Random selection group | 140 | 7 | 140 (100) | 137 (97.9) | 0 (0) | 0 (0) | 140 (100) | 0 (0) | 0 (0) |
Stock group | 54 | 40 | 53 (98.1) | 49 (90.7) | 0 (0) | 1 (7.1) | 51 (94.4) | 2 (5.0) | 1 (7.1) |
Total in Enterobacterales | 194 | 47 | 193 (99.5) | 186 (95.9) | 0 (0) | 1 (0.7) | 191 (98.5) | 2 (4.3) | 1 (0.7) |
P. aeruginosa | |||||||||
Random selection group | 46 | 6 | 46 (100) | 45 (97.8) | 0 (0) | 0 (0) | 43 (93.5) | 0 (0) | 3 (7.5) |
Stock group | 31 | 15 | 28 (90.3) | 28 (90.3) | 0 (0) | 3 (18.7) | 29 (93.5) | 1 (6.7) | 1 (6.3) |
Total in P. aeruginosa | 77 | 21 | 74 (96.1) | 73 (94.8) | 0 (0) | 3 (5.4) | 72 (93.5) | 1 (4.8) | 4 (7.1) |
Total in all tested isolates | 271 | 68 | 267 (98.5) | 259 (95.6) | 0 (0) | 4 (2.0) | 263 (97.0) | 3 (1.5) | 5 (2.5) |