Establishment and validation of a computer-assisted colonic polyp localization system based on deep learning

Table 3 Polyp detection between colonoscopists and colonoscopists + computer-assisted detection

	Colonoscopists		Colonoscopists + CADe		P value
PDR, %	45.9		48.3		0.06
SSR, %	3.83		4.78		0.50
CRSR, %	9.09		11.5		0.06
Number of polyps, mean ± SD	0.82 ± 1.20		0.90 ± 1.25		< 0.001
Pathology
Non-adenomatous	0.52 ± 0.94		0.58 ± 1.00		0.01
Adenomatous	0.30 ± 0.62		0.32 ± 0.64		0.025
Age
< 50	0.45 ± 0.70		0.51 ± 0.77		0.03
≥ 50	1.12 ± 1.42		1.22 ± 1.47		0.002
Sex
Male	0.96 ± 1.28		1.05 ± 1.36		0.005
Female	0.66 ± 1.07		0.72 ± 1.11		0.01
Location
Proximal	0.35 ± 0.69		0.39 ± 0.76		0.01
Distal	0.46 ± 0.89		0.51 ± 0.90		0.003
Size
≥ 10 mm	0.06 ± 0.28		0.06 ± 0.28		1
6-9 mm	0.18 ± 0.52		0.19 ± 0.52		0.32
≤ 5 mm	0.57 ± 0.95		0.65 ± 1.00		< 0.001
Morphology
Flat	0.67 ± 1.03		0.74 ± 1.08		0.001
Subpedunculated	0.11 ± 0.42		0.12 ± 0.42		0.16
Pedunculated	0.03 ± 0.21		0.03 ± 0.21		1
Indications
Screening	0.76 ± 1.15		0.85 ± 1.21		0.03
Surveillance	1.19 ± 1.42		1.33 ± 1.53		0.03
Diagnosis	0.70 ± 1.10		0.75 ± 1.13		0.03
Colonoscopes
CF-Q290	0.78 ± 1.09		0.87 ± 1.17		< 0.001
CF-Q260	1.04 ± 1.58		1.15 ± 1.56		0.08
CF-Q240	0.83 ± 1.64		0.83 ± 1.64		1
Experience
> 3000	1.24 ± 1.48		1.24 ± 1.48		1
1000-3000	0.79 ± 1.16		0.91 ± 1.26		0.003
< 1000	0.54 ± 0.92		0.62 ± 0.99		0.03
BBPS
< 6	0.59 ± 1.19		0.62 ± 1.19		0.32
≥ 6	0.87 ± 1.19		0.96 ± 1.26		< 0.001
Withdrawal time
< 6 min	0.52 ± 0.97		0.54 ± 0.98		0.16
≥ 6 min	1.13 ± 1.33		1.27 ± 1.39		0.001

CADe: Computer-assisted detection; BBPS: Boston bowel preparation score; PDR: Polyp detection rate; SSR: Sessile serrated adenoma/polyp detection rate; CRSR: Clinical serrated polyp detection rate.