Table 1.

Comparison of adenoma detection rates and miss rates of caecum to ascending colon between white light first and NBI first group

	White light first n=385	NBI first n=358	p Value*
ADR, % (no.)
1st	10 (39)	6.1 (22)	0.048
1st+2nd	12 (47)	11 (38)	0.50
1st+2nd+3rd	18 (70)	19 (67)	0.85
Adenomas, no.	93	97
First inspection	44	25
Second inspection	9	29
Third inspection	40	43
Miss rate 2nd/1st+2nd	0.17	0.54	0.000072
Miss rate 3rd/1st+2nd+3rd	0.43	0.44	0.85
All polyps, no.	227	207
First inspection	104	58
Second inspection	28	51
Third inspection	95	98
Miss rate 2nd/1st+2nd	0.21	0.47	0.000026
Miss rate 3rd/1st+2nd+3rd	0.42	0.47	0.25

*P values are calculated by chi-squared test.

ADR, adenoma detection rate; NBI, narrow band imaging.