Table 1.

Comparison of adenoma detection rates between three different methods for screening and surveillance colonoscopy

	Historical Cohorts
	Air Method (n=50)	Water Method (n=50)	Water with indigo carmine (n=50)
Male sex, %	100	98	98
Mean Age	58 (7)	61 (8)	61 (7)
Screening	39	37	34
Surveillance	11	13	16
Body mass index	30 (6)	30 (6)	29 (5)
Overall ADR (proportion of patient with at least 1 adenoma)	36%	40%	62%a,b
Total procedure time (min)	24 (9)	28 (13)	32 (7)a,b

Data as mean (SD); ^avs. water ^bvs. air; p<0.05, Chi square or ANOVA with contrasts.