Table 4.
Comparison of areas under the curve for continuous variables predicting the acquisition of carbapenem resistance
| AUC | 95% CI | threshold | Se% | CI 95% | Sp. % | 95% CI | PPV | NPV | |
|---|---|---|---|---|---|---|---|---|---|
| Duration of treatment with carbapenem | 0.664 | 0.55–0.77 | > 7 | 75 | 47–92.7 | 54.8 | 41.7–67.5 | 30 | 89.5 |
| Duration of hospitalization in intensive care unit | 0.761 | 0.65–0.85 | > 29 | 68.7 | 41–89 | 80.6 | 69–90 | 47.8 | 90.9 |
| Duration of mechanical ventilation | 0.669 | 0.55–0.77 | > 20 | 62.5 | 35–85 | 75.8 | 63–86 | 40 | 88.7 |
AUC area under the curve, 95% CI 95% confidence interval, Se sensitivity, Sp specificity
PPV Positive predictive value (probability of resistance at 3 months when the test is positive)
NPV Negative predictive value (probability of sensitivity at 3 months when the test is negative)