Table 1

Relation of plasma TGF-β1 levels to disease stage in patients with primary colorectal cancer

StageNo. of patientsTGF-β1 levels (ng/ml)
0–55.1–7.57.6–1515.1–3030.1–45>45
Normal454500000
Benign colonic lesion342860000
Dukes’ stage A13841000
Dukes’ stage B407914820
Dukes’ stage C640122114125