Table 3 Classification metrics of endoscopists versus CRCNet.

From: Diagnostic evaluation of a deep learning model for optical diagnosis of colorectal cancer

 

The performance of endoscopists and CRCNet

 

Tianjin Cancer Hospital (n = 363)

Tianjin First Central Hospital (n = 290)

Tianjin General Hospital (n = 271)

Performance metrics

Endoscopista

CRCNet

Endoscopista

CRCNet

Endoscopista

CRCNet

Accuracy (95% CI)

0.824 (0.781–0.861)

0.873 (0.835–0.906)

0.928 (0.891–0.955)

0.903 (0.863–0.935)

0.934 (0.897–0.960)

0.963 (0.933–0.982)

Recall rate (95% CI)

0.849 (0.781–0.903)

0.904 (0.844–0.947)

0.867 (0.779–0.929)

0.933 (0.861–0.975)

0.900 (0.805–0.959)

0.914 (0.823–0.968)

Specificity (95% CI)

0.912 (0.867–0.946)

0.853 (0.798–0.897)

0.920 (0.873–0.954)

0.890 (0.838–0.930)

0.940 (0.898–0.969)

0.980 (0.950–0.995)

Precision (95% CI)

0.842 (0.764–0.902)

0.805 (0.736–0.863)

0.838 (0.751–0.905)

0.792 (0.703–0.865)

0.844 (0.744–0.917)

0.941 (0.856–0.984)

Negative predicted value (95% CI)

0.880 (0.825–0.924)

0.930 (0.885–0.961)

0.941 (0.899–0.969)

0.967 (0.930–0.988)

0.964 (0.928–0.986)

0.970 (0.937–0.989)

Kappab

0.622

0.742

0.82

0.785

0.828

0.903

F1c

0.768

0.852

0.878

0.857

0.873

0.928

  1. aThe median value of five endoscopists.
  2. bMeasures the agreement between predicted classification with pathological report.
  3. cHarmonic average of the precision and recall rate.