Withdrawal time in excellent or very poor bowel preparation qualities

Table 4 Predictors of higher number of colonic segments with polyps and total number of colonic polyps during screening colonoscopy

	No. colonic segment with polyps		Total No. colonic polyps
	OR (95%CI)	P-value	OR (95%CI)	P-value
Older age	1.01 (1.00-1.03)	0.011	1.01 (1.00-1.02)	0.026
Gender of male1	1.31 (1.11-1.55)	0.002	1.18 (1.00-1.39)	0.047
Race
Asian2	0.89 (0.34-2.25)	NS	1.06 (0.41-2.73)	NS
White2	0.69 (0.33-1.45)	NS	0.70 (0.33-1.45)	NS
Black2	1.17 (0.97-1.41)	NS	1.22 (1.01-1.47)	0.041
Later time of colonoscopy	1.00 (1.00-1.00)	NS	1.00 (1.00-1.00)	0.043
Better bowel preparation quality	1.10 (1.00-1.21)	0.04	1.11 (1.01-1.22)	0.030
Longer duration of colonoscope withdrawal	1.14 (1.12-1.16)	< 0.0001	1.14 (1.12-1.16)	< 0.0001
Adenoma detection rate of endoscopist	1.03 (1.02-1.04)	< 0.0001	1.03 (1.02-1.04)	< 0.0001
Duration of colonoscopy practice of endoscopist	0.98 (0.97-0.98)	< 0.0001	0.98(0.97-0.99)	< 0.0001
Involvement of trainee during colonoscopy	0.93 (0.72-1.19)	NS	0.93(0.73-1.19)	NS

¹Compared to gender of female;

²Compared to Hispanic. NS: Not statistically significant.