Table 10 Sensitivity analysis showing the predictability of elastography findings of the second visit to preterm labor
From: Value of cervical strain in ultrasound elastography as a predictor of spontaneous preterm delivery
Test result variable(s) | AUC | p value | Cutoff | Sensitivity (%) | Specificity (%) | 95% confidence interval | |
|---|---|---|---|---|---|---|---|
Cervix length second visit | 0.075 | 0.0001 | < 2.9 | 96.7 | 50 | 0.017 | 0.133 |
Strain T1 second visit | 0.937 | 0.0001 | > 0.18 | 96.7 | 50 | 0.882 | 0.992 |
Strain T2 second visit | 0.695 | 0.005 | > 0.14 | 100 | 43.2 | 0.576 | 0.813 |
Ratio T1 second visit | 0.302 | 0.004 | > 0.65 | 66.7 | 9.1 | 0.177 | 0.426 |
Ratio T2 second visit | 0.511 | 0.869 | > 0.46 | 90 | 13.6 | 0.379 | 0.644 |