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. 2011 Feb;49(2):704–706. doi: 10.1128/JCM.01622-10

Table 2.

Evaluation of the performance of the Trek Sensititre broth microdilution panel for S. pneumoniae ASTc

Drug No. of isolates
% EA (no. of isolates that agree/total no. of isolates)a % CA (no. of isolates that agree) % error rate (no. of isolates that disagree)
Total S I R VME ME MiE
Ceftriaxone
    Meningitis 131 59 28 44 98.8 (81/82) 88.5 (116) 0 0 11.5 (15)
    Nonmeningitis 131 86 39 6 98.8 (80/81) 87.0 (114) 0 0 13.0 (17)
Clindamycin 130 81 2 47 N/Ab 98.5 (128) 0 0 1.5 (2)
Erythromycin 129 48 0 81 N/A 99.2 (128) 0 0 0.8 (1)
Levofloxacin 131 104 6 21 99.0 (98/99) 98.5 (129) 0 0 1.5 (2)
Meropenem 131 60 26 45 100 (71/71) 90.8 (119) 0 0 9.2 (12)
Penicillin
    Oral penicillin V 130 38 25 67 98.9 (90/91) 90.0 (117) 0 0 10.0 (13)
    Parenteral
        Meningitis 130 38 N/A 92 98.9 (90/91) 98.5 (128) 0 5.3 (2) N/A
        Nonmeningitis 130 97 32 1 98.9 (90/91) 82.3 (107) 0 0 17.7 (23)
Chloramphenicol 131 120 N/A 11 94.4 (117/124) 99.2 (130) 0 0.8 (1) N/A
Tetracycline 130 61 2 67 N/A 97.7 (127) 0 0 2.3 (3)
Telithromycin 131 130 1 0 N/A 99.2 (130) N/A 0 0.8 (1)
TMP-SMX 131 32 20 79 91.7 (22/24) 97.7 (128) 0 0 2.3 (3)
Vancomycin 131 131 N/A N/A N/A 100 (131) N/A 0 N/A
Linezolid 132 131 N/A N/A 92.2 (118/128) 100 (131) N/A 0 N/A
Cefuroxime (sodium) 130 49 3 78 N/A 97.7 (127) 0 0 2.3 (3)
Moxifloxacin 131 111 5 15 N/A 96.2 (126) 0 0 3.8 (5)
a

The denominators of the essential agreement (EA) were less than the total number of the isolates tested because MIC results of some isolates were out of the drug concentration ranges, and thus, the EA cannot be determined.

b

The EA cannot be determined because the MIC results were out of the drug concentration ranges.

c

S, susceptible; I, intermediate, R, resistant; EA, essential agreement, CA, category agreement; VME, very major error, ME, major error, MiE, minor error; N/A, not available; TMP-SMX, trimethoprim-sulfamethoxazole.