Table 4.

Positive rate by stage of our CRC diagnostic model for CRC with a different location

Group	n	Positive rate (%)
Clean healthy individuals	317	10.7 (7.3–14.2)
CRC patients
Stage 0
Proximal colon	32	9.4 (0.0–21.9)
Distal colon	13	30.8 (7.7–53.8)
Rectum	23	26.1 (8.7–43.5)
		p = 0.148
Stage I
Proximal colon	36	38.9 (22.2–55.6)
Distal colon	24	45.8 (25.0–66.7)
Rectum	47	51.1 (36.2–66.0)
		p = 0.544
Stage II
Proximal colon	32	62.5 (46.9–78.1)
Distal colon	22	59.1 (36.4–77.3)
Rectum	23	78.3 (60.9–95.7)
		p = 0.335
Stage III/IV
Proximal colon	45	57.8 (42.2–71.1)
Distal colon	43	58.1 (44.2–72.1)
Rectum	86	70.9 (61.6–80.2)
		p = 0.203

Ranges in parentheses are 95% confidence intervals with 10,000 bootstrap replicates. Statistical significance was determined with the chi‐squared test. p values < 0.05 were considered significant.