Research Article
Use of Near-Infrared Spectroscopic Analysis of Second Trimester Amniotic Fluid to Assess Preterm Births
Table 2
Results for the cross-validation of the calibration model and diagnostic statistics.
| Preterm pregnancies | Control term pregnancies |
| No. of group | 11 | No. of group | 216 | Prematurity index (PI) () | 0.77 ± 0.08* | Prematurity index () | 1.00 ± 0.02 | True positives | 11 | True negatives | 216 | False negatives | 0 | False positives | 0 | Sensitivity | 100% | Specificity | 100% | Positive predictive value | 100% | Negative predictive value | 100% |
|
|
value < 0.001.
|