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Table 1 Performance of Carba 5 assay using isolates from the retrospective analysis

From: Application of a multiplex immunochromatographic assay for rapid identification of carbapenemases in a clinical microbiology laboratory: performance and turn-around-time evaluation of NG-test Carba 5

Target carbapenemase Organism group No. of positive tests / total no. of isolates Sensitivity
(95% CI)
Specificity
(95% CI)
Enterobacteriaceae Pseudomonas
species
KPC    30/30 100 (88.43–100) 100 (94.94–100)
 KPC-2 30  
NDM    26/26 100 (86.77–100) 100 (95.20–100)
 NDM-1 24  
 NDM-5 1  
 NDM-7 1  
VIM    12/13 92.31 (63.97–99.81) 100 (95.89–100)
 VIM-1 11  
 VIM-2 1 1
OXA-48-like    5/5 100 (47.82–100) 100 (96.23–100)
 OXA-48 4  
 OXA-181 1  
IMP    3/3 100 (29.24–100) 100 (96.31–100)
 IMP-1 1  
 IMP-6   2
NDM + OXA-48-like    1/1 100 (2.50–100) 100 (96.38–100)
 NDM-5 + OXA-181  1  
Overall 76 2 77/78 98.72 (93.06–99.97) 100 (85.18–100)
Non-carbapenemase producers 21 2 23