Table 3.

Sensitivity^* as a Function of Different Characteristics in Colorectal Cancer.

Category	Number of Patients	Positive	Negative	Sensitivity (%)
Size (cm)
0.1–4.0	40	28	12	70
≥4.1	38	31	7	82
Dukes stage
A	8	7	1	88
B	29	25	4	86
C	37	25	12	68
D	9	8	1	89
Location
Ascending	18	13	5	72
Transverse	2	2	0	100
Descending	30	22	8	73
Rectum	35	28	7	80

^*Cutoff value is 25 ng.