Table 2.
Results for Staphylococci tested with the MICPOS1 standard turbidity inoculum method and visual reading versus AST reference methods.
| No. of Isolates AST Reference a |
No. of Isolates MICPOS1 b | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Antimicrobial | Total | R | I | S | R | I | S | CA c (no. [%]) |
mE d (no. [%]) |
ME e (no. [%]) |
VME f (no. [%]) |
| Penicillin | 63 | 59 | 0 | 4 | 59 | 0 | 4 | 63 (100) | 0 (0) | 0 (0) | 0 (0) |
| Ciprofloxacin | 74 | 37 | 0 | 37 | 39 | 0 | 35 | 72 (97) | 0 (0) | 2 (3) | 0 (0) |
| Amikacin | 74 | 17 | 4 | 53 | 16 | 8 | 50 | 69 (93) | 4 (5) | 1 (1) | 0 (0) |
| Gentamicin | 74 | 28 | 0 | 46 | 30 | 0 | 44 | 72 (97) | 0 (0) | 2 (3) | 0 (0) |
| Teicoplanin | 74 | 3 | 0 | 71 | 1 | 0 | 73 | 72 (97) | 0 (0) | 0 (0) | 2 (3) |
| Vancomycin | 74 | 2 | 0 | 72 | 2 | 0 | 72 | 74 (100) | 0 (0) | 0 (0) | 0 (0) |
| Quinupristin-dalfopristin | 74 | 0 | 7 | 67 | 0 | 7 | 67 | 74 (100) | 0 (0) | 0 (0) | 0 (0) |
| Erythromycin | 74 | 30 | 0 | 44 | 30 | 1 | 43 | 71 (96) | 1 (1) | 1 (1) | 1 (1) |
| Clindamycin | 74 | 14 | 0 | 60 | 12 | 1 | 61 | 72 (97) | 1 (1) | 0 (0) | 1 (1) |
| Daptomycin | 74 | 1 | 0 | 73 | 1 | 0 | 73 | 74 (100) | 0 (0) | 0 (0) | 0 (0) |
| Fosfomycin | 74 | 29 | 0 | 45 | 30 | 0 | 44 | 73 (99) | 0 (0) | 1 (1) | 0 (0) |
| Trimethoprim/Sulfamethoxazole | 74 | 18 | 0 | 56 | 19 | 3 | 52 | 70 (95) | 3 (4) | 1 (1) | 0 (0) |
| Linezolid | 74 | 5 | 0 | 69 | 5 | 0 | 69 | 74 (100) | 0 (0) | 0 (0) | 0 (0) |
| Tetracycline | 74 | 37 | 0 | 37 | 39 | 0 | 35 | 72 (97) | 0 (0) | 2 (3) | 0 (0) |
| Tigecycline | 74 | 0 | 0 | 74 | 1 | 0 | 73 | 73 (99) | 0 (0) | 1 (1) | 0 (0) |
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.