Can optical diagnosis of small colon polyps be accurate? Comparing standard scope without narrow banding to high definition scope with narrow banding

Table 1 Comparing the characteristics of patients underwent standard scope vs high definition scope with narrow band imaging n (%)

Parameters	Standard scope (1) (n = 68)	HD scope (n = 72)	P value
Female	41 (60)	48 (67)	0.40
Age (yr), median (IQR)	56 (52-61)	57 (53-64)	0.70
Education			0.40
High school and lower	31 (46)	38 (54)
> High school	37 (54)	34 (47)
H/o previous colonoscopy	25 (37)	19 (26)	0.20
H/o previous colon polyp	6 (9)	7 (10)	0.80
Family h/o colon cancer	22 (22)	12 (17)	0.40
Indication			0.20
Screening	34 (50)	45 (63)
Diagnostic	18 (26)	19 (26)
Follow up	16 (24)	8 (11)
Colon preparation			0.08
Good	63 (93)	71 (99)
Moderate	5 (7)	1 (1)
Number of patient with polyp diagnosis	41 (60)	49 (68)	0.30
Total number of polyps detected, median (IQR)	1 (1-2)1	2 (1-3)2	0.20
Adenoma detection rate	23 (34)	32 (44)	0.20
Advanced adenoma detection rate	7 (10)	8 (11)	0.90
Hyperplastic polyp detection rate	19 (28)	21 (29)	0.90
Proportion of patients with multiple polyps	17 (41)1	28 (57)2	0.10

¹n = 41;

²n = 49. HD: High definition.