Table 4 Diagnostic performance of potential dichotomous tests based on meeting the cut-off criteria determined on ROC curves.
Parameter | OR | 95% CI | Sensitivity (95%CI) | Specificity | PPV | NPV | Accuracy |
|---|---|---|---|---|---|---|---|
PTB < 35 weeks of gestation | |||||||
PAPP-A MoM < 1.18 | 4.27 | 1.48–12.34 | 86.67% | 39.70% | 3.65% | 99.12% | 40.90°% |
PTB < 37 weeks of gestation | |||||||
PAPP-A < 3.39 | 2.8 | 1.74–4.49 | 65.85% | 59.22% | 10.90% | 95.82% | 59.69% |
PAPP-A MoM < 0.71 | 3.11 | 1.97–4.92 | 46.34% | 78.30% | 13.92% | 95.07% | 76.05% |
Free bHCG < 41.16 | 2.57 | 1.55–4.26 | 73.17% | 50.00% | 9.98% | 96.10% | 40.31% |
Free bHCG MoM < 1.31 | 2.12 | 1.24–3.64 | 78.05% | 37.45% | 8.63% | 95.75% | 40.31% |
pPROM | |||||||
bHCG < 40.06 | 3.69 | 1.87–7.26 | 78.85% | 49.77% | 6.83% | 98.05% | 51.07% |
bHCG MoM < 1.3 | 2.58 | 1.28–5.20 | 80.77% | 38.10% | 5.74% | 97.70% | 40.01% |
PAPP-A < 3.96 | 2.409 | 1.30–4.44 | 71.15% | 49.41% | 6.16% | 97.35% | 50.38% |
PAPP-A MoM < 0.67 | 2.76 | 1.55–4.9 | 40.38% | 80.33% | 8.75% | 96.65% | 78.55% |
Spontaneus preterm labour | |||||||
PTB < 37 weeks of gestation | |||||||
Free bHCG < 26.65 | 8.0364 | 4.36–14.81 | 27.80% | 75.60% | 5.40% | 95.40% | 24.40% |
bHCG MoM < 1.302 | 2.1611 | 1.12–4.15 | 79.60% | 38.20% | 6.10% | 97.40% | 40.20% |
PAPP-A < 3.38 | 1.968 | 1.13–3.42 | 59.30% | 59.20% | 6.80% | 96.70% | 59.20% |
PAPP-A MoM < 0.688 | 2.6567 | 1.51–4.66 | 38.90% | 81.10% | 9.40% | 96.40% | 79.10% |
