. Author manuscript; available in PMC: 2009 Dec 1.

Published in final edited form as: Cancer Prev Res (Phila). 2008 Dec;1(7):507–513. doi: 10.1158/1940-6207.CAPR-08-0096

Table 1.

Characteristics of the study participants by randomization arm

	Chromoendoscopy	Intensive Colonoscopy

Number of Patients	27	23

Mean Age (years)	57.6	59.3

Female	14 (52%)	7 (30%)

Non-White	1	0

Personal History of CRC	2 (7%)	3 (13%)
Family History of CRC	9 (33.3%)	5 (22%)

Number of Polyps on Previous Colonoscopies:

1–2	13 (48%)	12 (52%)

3–5	4 (15%)	3 (13%)

> 5	6 (22%)	5 (22%)

Number of Previous Colonoscopies:

1	7 (26%)	7 (30.5%)

2	6 (22%)	4 (17.5%)

3+	13 (48%)	12 (52%)

Mean Time Since Last Colonoscopy (months*):	18.8	26.3

Range	0–73	0–72

History of Partial Colon Resection	8(30 %)	3(13%)

History of ever Smoking	12 (44%)	14 (61 %)
Current Smoking	2 (7%)	4 (17%)

Average number of alcoholic drinks/wk – (range)	4.35 (0–42)	5.48 (0–28)

(There were no statistically significant (p<0.05) differences between arms in any of the listed variables.)