Table 1.

Characteristics of subjects in each clinical group.

	Healthy	Adenoma	Cancer	P-value
Age, years (mean, SD)	55.3 (9.2)	61.3 (11.1)	59.4 (11.0)	0.080
Gender (n, %):
Men	11 (37%)	18 (60%)	21 (70%)
Women	19 (63%)	12 (40%)	9 (30%)	0.029
Race/Ethnicity:
Non-Hispanic White	21 (70%)	27 (90%)	28 (93%)
Other	9 (30%)	3 (10%)	2 (7%)	0.026
Body mass index (mean, SD)	26.6 (5.2)	27.4 (4.4)	30.7 (7.2)	0.022
Current medication use (n, %)	23 (77%)	21 (70%)	26 (87%)	0.295
Positive FOBT (n, %)	0 (0%)	4 (13%)	22 (73%)	0.001