Table 2 Diagnostic performance of platelet parameters for preeclampsia based on receiver-operating characteristic analysis
|  | 12–15 weeks of gestation (n = 7034) | 16–19 weeks of gestation (n = 10,246) | ||||||
|---|---|---|---|---|---|---|---|---|
| Â | PC | MPV | PCT | PDW | PC | MPV | PCT | PDW |
Total PE | ||||||||
 AUC | 0.580 | 0.515 | 0.590 | 0.580 | 0.580 | 0.559 | 0.608 | 0.499 |
 Sensitivity | 44.0 | 48.0 | 77.3 | 60.5 | 65.5 | 54.5 | 71.7 | 75.2 |
 Specificity | 72.8 | 60.8 | 38.8 | 54.4 | 47.7 | 57.6 | 45.0 | 31.0 |
Preterm PE | ||||||||
 AUC | 0.543 | 0.596 | 0.516 | 0.597 | 0.616 | 0.612 | 0.688 | 0.552 |
 Sensitivity | 55.0 | 44.0 | 35.0 | 45.0 | 37.8 | 45.9 | 89.2 | 83.8 |
 Specificity | 67.8 | 83.8 | 76.0 | 83.0 | 82.9 | 74.3 | 44.9 | 28.1 |
Term PE | ||||||||
 AUC | 0.593 | 0.555 | 0.629 | 0.573 | 0.566 | 0.540 | 0.580 | 0.520 |
 Sensitivity | 43.6 | 30.9 | 76.4 | 56.4 | 49.1 | 65.7 | 59.3 | 95.4 |
 Specificity | 72.7 | 83.1 | 46.4 | 57.8 | 63.4 | 44.2 | 52.9 | 13.2 |