From: Efficiency of non-invasive prenatal screening in pregnant women at advanced maternal age
Trisomy | Sensitivity | Specificity | PPV (95% CI) | NPV (95% CI) | Rate of TP |
---|---|---|---|---|---|
T21 | 99.11 (94.62–99.99) | 99.96 (99.93–99.98) | 90.98 (84.08–95.19) | 100 (99.98–100) | 0.382 |
T18 | 100 (88.53–100) | 99.94 (99.91–99.97) | 67.92 (53.55–79.70) | 100 (99.98–100) | 0.123 |
T13 | 100 (51.09–100) | 99.96 (99.92–99.98) | 27.78 (12.17–51.20) | 100 (99.98–100) | 0.017 |