Table 2.

A Comparison of Serum CSE1L and CEA in Colorectal Cancer Diagnosis

Groups	Healthy donor (n = 47)	Stage I (n = 25)	Stage II (n = 26)	Stage III (n = 42)	Stage IV (n = 9)
CSE1L-positive, cases (%)	4 (8.5)	9 (36.0)*	15 (57.7)‡	30 (71.4)¶	8 (88.9)**
CEA-positive, cases (%)	Not assayed	4 (16.0)	11 (42.3)	20 (47.6)	7 (77.8)
CSE1L or CEA-positive, cases (%)	Not assayed	12 (48.0)†	17 (65.4)§	37 (88.1)∥	9 (100)††

^*P = 0.021, compared with that of CEA-positive cases in stage I group. 

^†P = 0.0025, compared with that of CEA-positive cases in stage I group. 

^‡P = 0.043, compared with that of CEA-positive cases in stage II group. 

^§P = 0.011, compared with that of CEA-positive cases in stage II group. 

^¶P = 0.0009, compared with that of CEA-positive cases in stage III group. 

^∥P = 0.000004, compared with that of CEA-positive cases in stage III group. 

^**P = 0.346, compared with that of CEA-positive cases in stage IV group. 

^††P = 0.169, compared with that of CEA-positive cases in stage IV group.