Table 5.
ROC curve analysis of related indicators in diagnosing the intrauterine residues after medical abortion.
| Indicator | AUC | 95% CI | Specificity | Sensitivity | P |
|---|---|---|---|---|---|
| β-HCG | 0.62 | 0.545–0.732 | 64.26% | 77.59% | .01 |
| P | 0.64 | 0.551–0.750 | 65.38% | 79.41% | .01 |
| FSH | 0.66 | 0.559–0.764 | 67.82% | 80.15% | .01 |
| β-HCG/ET | 0.78 | 0.663–0.821 | 73.18% | 86.33% | .01 |
| β-HCG/PSV | 0.72 | 0.641–0.786 | 71.49% | 81.52% | .01 |
| β-HCG/RI | 0.71 | 0.634–0.782 | 69.52% | 80.47% | .01 |
AUC, area under the curve, CI = confidence interval, ET = endometrial thickness, FSH = follicle stimulating estrogen, P = progesterone, PSV = peak systolic velocity, RI = resistance index, ROC = receiver operating characteristic, β-HCG = β-human chorionic gonadotropin.