Skip to main content

Table 2 Sensitivity and specificity of M-ECC and chromID CARBA to detect bla IMP-positive CPE in stool specimens

From: Development of selective medium for IMP-type carbapenemase-producing Enterobacteriaceae in stool specimens

Method   bla IMP Sensitivity (%) (95% CI) Specificity (%) (95% CI) PPV (%) (95% CI) NPV (%) (95% CI) PLR
Positive
(n = 144)
Negative
(n = 891)
M-ECC Positive 143 6 99.3 (96.2–100.0) 99.3 (98.5–99.8) 96.0 (91.4–98.5) 99.9 (99.3–100.0) 147.5
Negative 1 885
ChromID
CARBA
Positive 20 0 13.9 (8.7–20.6) 100.0 (99.6–100.0) 100.0 (83.2–100.0) 87.8 (85.6–89.7) NA
Negative 124 891
  1. CI confidential interval, PPV positive predictive value, NPV negative predictive value, PLR positive likelihood ratio, NA not applicable