TABLE 1

Comparison of culture and real-time PCR results of swab surveillance samplesa

Real-time PCR resultNo. of swabs with indicated culture resultAccuracy (%)Sensitivity (95% CI)Specificity (95% CI)PPV (%)NPV (%)
PositiveNegative
Positive4639889999498
Negative6310(77–96)(97–100)
  • a CI, confidence interval; PPV, positive predictive value; NPV, negative predictive value.