Table 5.

Mean number of polyps per patient

	Linked Colour imaging (N=160)	High-definition white light endoscopy (N=172)	Incidence rate ratio (two-sided 95% CI)	P value (two-sided)
Polyps†	0.94 (1.40)	0.62 (1.14)	1.51 (1.05 to 2.16)	0.03*
Adenomas	0.65 (1.11)	0.42 (0.92)	1.55 (1.02 to 2.35)	0.04*
Advanced adenomas	0.06 (0.28)	0.05 (0.25)	1.07 (0.37 to 3.15)	0.89
Flat adenomas‡	0.28 (0.75)	0.19 (0.63)	1.47 (0.76 to 2.84)	0.26
≤5 mm adenomas	0.54 (1.00)	0.34 (0.76)	1.58 (1.02 to 2.46)	0.04*
>5 mm adenomas	0.10 (0.40)	0.07 (0.29)	1.41 (0.60 to 3.30)	0.43
Proximal adenomas§	0.46 (0.92)	0.26 (0.63)	1.78 (1.10 to 2.88)	0.02*
Serrated polyps	0.29 (0.76)	0.17 (0.49)	1.64 (0.90 to 3.00)	0.10
Sessile serrated lesions	0.09 (0.39)	0.08 (0.29)	1.24 (0.52 to 2.95)	0.63
Proximal serrated polyps§	0.17 (0.55)	0.10 (0.33)	1.61 (0.79 to 3.29)	0.19
Hyperplastic polyps	0.17 (0.60)	0.10 (0.34)	1.71 (0.79 to 3.69)	0.17

Data are mean (SD).

*p<0.05, ^**p<0.01.

†1–5 mm hyperplastic polyps in the rectosigmoid, normal mucosa or other non-neoplastic lesions (eg, inflammatory polyps) and lesions not retrieved for pathology were excluded.

‡Morphology 0-IIa, 0-IIb, or IIc according to Paris classification.

§Proximal to splenic flexure.