Table 1.

Demographics of healthy controls <50 years old, healthy controls ≥50 years old, and EOCRC cases.

Variable	Healthy controls <50 years (N=48)	Healthy controls ≥50 years (N=39)	EOCRC (N=27)
Age (median, range)	44 (29–49)	56 (50–77)	44 (25.9–49)
Race (n, %)
White	9 (18.8)	21 (53.8)	22 (81.5)
Black	23 (47.9)	4 (10.3)	2 (7.4)
Hispanic	15 (31.3)	7 (17.9)	0 (0.0)
Asian	1 (2.1)	5 (12.8)	1 (3.7)
Unknown	0 (0.0)	1 (2.6)	2 (7.4)
Sex (n, %)
Female	17 (35.4)	14 (35.9)	11 (40.7)
Male	31 (64.6)	25 (64.1)	16 (59.3)
mSEPT9 assay (n, %)
Positive	2 (4.2)	6 (15.4)	24 (88.9)
Negative	46 (95.8)	33 (84.6)	3 (11.1)