Clinical Study
PP13 and PAPP-A in the First and Second Trimesters: Predictive Factors for Preeclampsia?
Table 7
The validity factors of linear combinations of preeclampsia markers based on the three linear combinations.
| Linear combination | Cutoff | Sensitivity (95% CI) | Specificity % (95% CI) | Positive predictive value % (95% CI) | Negative predictive value % (95% CI) | Surface under curve (95% CI) |
| | ≤10.9 | 86.0 (77.6–91.2) | 80.0 (70.8–87.3) | 81.1 (72.4–88.1) | 85.1 (76.3–91.6) | 0.919 (0.884–0.954) | | ≤214.5 | 89.0 (81.2–94.4) | 81.0 (71.9–88.2) | 82.4 (73.9–89.1) | 88.0 (79.6–93.9) | 0.932 (0.886–0.957) | | ≤238.5 | 91.0 (83.6–95.8) | 91.0 (83.6–95.8) | 91.0 (83.6–95.8) | 91.0 (83.6–95.8) | 0.968 (0.949–0.987) |
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