Table 3 Number of colorectal lesions at the first and second colonoscopic examinations

	Narrow band imaging			White light imaging
	No. lesions on first examination	No. lesions on second examination	Miss rate, % (95% CI)	No. lesions on first examination	No. lesions on second examination	Miss rate, % (95% CI)
Any adenoma	144	20	12.2% (7.6 to 18.2)	115	17	12.9% (7.7 to 19.8)
⩽5 mm	85	16	15.8% (9.3 to 24.4)	60	13	17.8% (9.8 to 28.5)
6–9 mm	43	3	6.5% (1.4 to 17.9)	38	4	9.5% (2.7 to 22.6)
⩾10 mm	16	1	5.7% (0.1 to 28.7)	17	0	0% (0 to 16.2)
Non-adenoma	107	12	10.1% (5.3 to 17.0)	125	18	12.6% (7.6 to 19.2)