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Table 3 Specificity, sensitivity, PPV, NPV and Az value of the imaging features in the diagnosis of SCNs

From: A prospective study on endoscopic ultrasound for the differential diagnosis of serous cystic neoplasms and mucinous cystic neoplasms

Imaging features Sensitivity (95% CI) Specificity (95% CI) PPV (95% CI) NPV (95% CI) Az value (95% CI)
Head/neck location 47.4% (31.3–64.0%) 83.9% (65.5–93.9%) 78.3% (55.8–91.7%) 56.5% (41.2–70.8%) 0.656 (52.7–78.6%)
Lobulated shape 55.3% (38.5–71.0%) 87.1% (69.2–95.8%) 84.0% (63.1–94.7%) 61.3% (45.5–75.3%) 0.712 (58.9–83.5%)
Thin wall 76.3% (59.3–88.0%) 67.7% (48.5–82.7%) 74.4% (57.6–96.4%) 70.0% (50.4–84.6%) 0.720 (59.6–84.5%)
> 2 septa 71.1% (53.9–84.0%) 64.5% (45.4–80.2%) 71.1% (53.9–84.0%) 64.5% (45.3–80.2%) 0.678 (54.9–80.7%)
Two features 84.2% (68.1–93.4%) 80.6% (61.9–91.9%) 84.2% (68.1–93.4%) 80.6% (61.9–91.9%) 0.824 (71.9–93.0%)
Three features 55.3% (38.5–71.0%) 93.5% (77.2–98.9%) 91.3% (70.5–98.5%) 63.0% (47.5–76.4%) 0.744 (62.7–86.1%)
Four features 15.8% (6.6–31.9%) 100% (86.2–100%) 100% (51.7–100%) 49.2% (36.5–62.0%) 0.579 (44.5–71.3%)
  1. SCNs serous cystic neoplasms, PPV positive predictive value, NPV negative predictive value, CI confidence interval