Table 1. Demographic and clinical characteristics of the study subjects.

Characteristic	CRC diagnosed at ≤ 35 years	CRC diagnosed at > 35 years
Total patients	140 (5.9)	2,231 (94.1)
Age
Median age of onset (range)	31 (15–35)	60 (36–93)
Mean age of onset	29.9	60.1
Gender
Male (%)	84 (60.0)	1,312 (61.6)
Female (%)	56 (40.0)	819 (38.4)
Diagnosis
Colon adenoma (%)1	8 (5.7)	33 (1.5)
Colon cancer (%)2	65 (46.4)	1,005 (45.1)
Rectal adenoma (%)1	2 (1.4)	14 (0.6)
Rectal cancer (%)2	65 (46.4)	1,179 (52.8)

¹At least three adenomas detected; ²In the absence of (multiple) adenomas.