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Table 6 The calculated performance indices for different models and SUA for the testing group (n = 100)

From: Development and validation of a model that includes two ultrasound parameters and the plasma D-dimer level for predicting malignancy in adnexal masses: an observational study

Model / Method Sensitivity (95% CI) Specificity (95% CI) PPV (95% CI) NPV (95% CI) AUC
ADNEX 88.0% 94.0% 93.6% 88.7% 0.972
(76.2–94.4) (83.8–97.9) (82.8–97.8) (77.4–94.7) (0.946–0.999)
LR2 72.0% 98.0% 97.3% 77.8% 0.969
(58.3–82.5) (89.5–99.9) (86.2–99.9) (66.1–86.3) (0.936–1.0)
RMI3 82.0% 88.0% 87.2% 83.0% 0.912
(69.2–90.2) (76.2–94.4) (74.8–94.0) (70.8–90.8) (0.854–0.970)
RMI4 84.0% 86.0% 85.7% 84.3% 0.932
(71.5–91.7) (73.8–93.0) (73.3–92.9) (72.0–91.8) (0.882–0.983)
SRrisk 82% 96.0% 95.3% 84.2% 0.976
(69.2–90.2) (86.5–98.9) (84.5–98.7) (72.6–91.5) (0.953–0.999)
SUA 92.0% 94.0% 93.9% 92.2% 0.930
(81.2–96.8) (83.8–97.9) (83.5–97.9) (81.5–96.9) (0.880–0.981)
Our model 96.0% 86.0% 87.3% 95.6% 0.977
(86.5–98.9) (73.8–93.0) (76.0–93.7) (85.2–98.8) (0.955–0.999)
  1. 95% CI 95% confidence intervals, ADNEX, LR2, RMI3, RMI4, SRrisk abbreviations for different models (details in the text), AUC area under the curve, NPV negative predictive value, PPV positive predictive value, RMI risk of malignancy index (model), SUA subjective ultrasound assessment