Table 2.

Comparison of results for identifying colon polyps using the STFT model and endoscopists with different years of experience

	Accuracy	Sensitivity	Specificity	PPV	NPV
STFT Model	0.902	0.904	0.898	0.947	0.824
Experts	0.937	0.926	0.959	0.946	0.866
X 2	2314.609	78.885	0.590
P -value	< 0.001	< 0.001	0.443
Seniors	0.895	0.874	0.938	0.966	0.788
X 2	2184.841	51.166	0.791
P -value	< 0.001	< 0.001	0.374
Juniors	0.819	0.800	0.856	0.917	0.682
X 2	1227.530	22.693	0.383
P -value	< 0.001	< 0.001	0.536