Dukes’ stage
Characteristics Control CRC A B C D
N 46 89 21 28 32 8
Median age, yrs (range) 70 (50-85) 68 (44-93) 66 (44-93) 68 (47-93) 69 (46-81) 71 (46-85)
Gender, N            
Female 23 46 10 14 17 5
Male 23 43 11 14 15 3
Gender, median age, yrs (range)            
Female 70 (51-85) 67 (46-93) 67 (58-85) 68 (47-93) 71 (51-81) 62 (46-84)
Male 70 (50-84) 68 (44-93) 66 (44-93) 68 (52-85) 68 (46-79) 79 (62-85)
Table 1: Age, gender and clinical characteristics of the cohort used for the enzymelinked immunosorbent assay detection of Dkk–3 protein levels in serum samples.