| Early onset (n = 23) | Late onset (n = 17) |  | ||
---|---|---|---|---|---|
 | n | % | n | % | p -value |
Male | 10 | 43.5 | 9 | 52.9 | Â |
Female | 13 | 56.5 | 8 | 47.1 | 0.75# |
Average age | 43.2 | Â | 78.6 | Â | Â |
Median age | 44.0 | Â | 79.0 | Â | Â |
min, age | 28 | Â | 69 | Â | Â |
max, age | 53 |  | 87 |  | <0.01§ |
Dukes' A | 4 | 17.4 | 5 | 29.4 | Â |
Dukes' B | 5 | 21.7 | 5 | 29.4 | Â |
Dukes' C | 10 | 43.5 | 5 | 29.4 | Â |
Dukes' D | 4 | 17.4 | 2 | 11.8 0 | 0.69# |
Proximal colon | 6 | 26.1 | 3 | 17.6 | Â |
Distal colon | 17 | 73.9 | 14 | 82.4 | 0.71# |