Table 2.

Demographics of the adenoma and non-adenoma groups

Adenoma (n = 233)Non-adenoma (n = 547)P
Age (mean, SD)66.5–6.966.5–6.90.60
Sex (n, %)
 Female100 (42.9)237 (43.3)0.98
 Male133 (57.1)310 (56.7)
Race (n, %)
 White223 (95.7)503 (92)0.30
 Black3 (1.3)14 (2.6)
 Hispanic4 (1.7)14 (2.6)
 Asian0 (0)8 (1.5)
 Native American0 (0)2 (0.5)
 Other/Unknown3 (1.3)5 (0.9)
Ever smoker (n, %)138 (59.2)310 (56.7)0.56
History of cancer, any type (n, %)44 (18.9)116 (21.2)0.52
First-degree relative with colorectal cancer (n, %)35 (15)89 (16.3)0.74
First-degree relative with polyps (n, %)25 (10.7)47 (8.6)0.82