Table 3 Diagnostic performance of optical diagnosis of colorectal neoplastic polyps by three modalities for the expert group.

From: The value of three narrow-band imaging model in the diagnosis of small colorectal polyps

Modality

NBI (95% CI)

NBIME (95% CI )

AA-NBIME (95% CI)

\(P_{{NBI vs AA{ - }NBIME}}\)

\(P_{NBI vs NBIME }\)

\(P_{{NBIME vs AA{ - }NBIME}}\)

Sensitivity

89.7% (85.1–94.3)

92.1% (88.0–96.2)

94.5% (91.1–98.0)

0.117

0.045

0.394

Specificity

84.4% (77.1–91.6)

90.6% (84.8–96.5)

94.8% (90.3–99.2)

0.008

0.014

0.285

Accuracy

87.7% (83.2–91.2)

91.6% (87.5–94.4)

94.6% (91.1–96.9)

 0.009

0.196

0.227

PPV

90.8% (86.4–95.2)

94.4% (90.9–98.0)

96.9% (94.2–99.6)

0.006

0.011

0.266

NPV

82.7% (75.2–90.1)

87.0% (80.4–93.6)

91.0% (85.4–96.6)

0.069

0.017

0.342

  1. PPV positive predictive value, NPV negative predictive value.