Randomised controlled trial comparing modified Sano’s and narrow band imaging international colorectal endoscopic classifications for colorectal lesions

Table 3 Characteristics of colon polyps

Classification	Modified Sano’s	NICE	P value
Confidence level n (%)
High	309 (96.3)	254 (78)	<0.0001
Low	12 (3.7)	72 (22)
Total	321	326
Distribution based on size
≤ 5 mm	151	127	NS
6-9 mm	63	42
≥ 10 mm	95	85
Size (mean ± SD, mm)	10.17 ± 11.30	14.48 ± 19.47	0.0036
Polyp distribution n (%)
Right colon	95 (31)	101 (40)	NS
Transverse colon	60 (19)	52 (20)
Descending colon	34 (11)	27 (11)
Rectosigmoid colon	120 (39)	74 (29)
Total	309	254
Paris n (%)
1p	28 (9)	18 (7)	NS
1s	190 (61)	156 (61)
2a	81 (26)	71 (28)
2b	4 (1)	1 (1)
2c	5 (2)	6 (2)
3	1 (1)	2 (1)
Others	12	15
Total	309	254

NICE: Narrow band imaging international colorectal endoscopic; NS: Non-significant.