TABLE 5.
Area Under the Receiver Operator Characteristic Curve for Guideline-Defined and Cohort-Developed Regression Models
| Model | Outcome Variable | Predictive Variables | aROC | (95% CI) | Model Comparison | aROC Difference | (95% CI) | P Value |
|---|---|---|---|---|---|---|---|---|
| 1 | CAP-resistance | Guideline-defined | 0.630 | (0.570, 0.691) | 2–1 | 0.079 | (0.018, 0.139) | 0.011 |
| 2 | CAP-resistance | Cohort-developed | 0.709 | (0.650, 0.768) | ||||
| 3 | MRSA | Guideline-defined | 0.638 | (0.560, 0.712) | 4–3 | 0.135 | (0.057, 0.213) | <0.001 |
| 4 | MRSA | Cohort-developed | 0.773 | (0.703, 0.844) | ||||
| 5 | Pseudomonas aeruginosa | Guideline-defined | 0.680 | (0.593, 0.768) | 6–5 | 0.090 | (−0.193, 0.193) | 0.090 |
| 6 | Pseudomonas aeruginosa | Cohort-developed | 0.770 | (0.683, 0.857) | ||||
| 7 | MRSA | Cohort-developed from CAP-resistance model | 0.755 | (0.682, 0.828) | 7–4 | −0.018 | (−0.067, 0.031) | 0.467 |
| 8 | Pseudomonas aeruginosa | Cohort-developed from CAP-resistance model | 0.755 | (0.665, 0.845) | 8–6 | −0.015 | (−0.079, 0.049) | 0.650 |
Abbreviations: aROC, area under the receiver operator characteristic; CAP, community acquired pneumonia; CI, confidence interval; MRSA, methicillin-resistant Staphylococcus aureus.