Table 4 Features of colorectal cancer In Chinese HNPCC and sporadic CRC patients
| Â | Amsterdam criteria cases (%) | Japanese criteria cases (%) | Chinese/Korean criteria cases (%) | Sporadic CRC cases (%) |
|---|---|---|---|---|
1. Gender | Â | Â | Â | Â |
   male | 166 (55) | 53 (48) | 14 (33) | 437 (47) |
   female | 136 (45) | 57 (52) | 28 (67) | 50 (53) |
2. Location | Â | Â | Â | Â |
   right colon | 85 (40) | 33 (26) | 144 (10) |  |
   other colon | 155 (73) | 65 (52) | 26 (62) | 540 (39) |
   rectum | 57 (27) | 60 (48) | 16 (38) | 853 (61) |
3. Duke's stage | Â | Â | Â | Â |
   A&B | 67 (63) | 42 (46) | 34 (81) | 387 (49) |
   C&D | 40 (37) | 49 (54) | 8 (19) | 400 (51) |
4. Differentiation | Â | Â | Â | Â |
   low grade | 17 (40) | 24 (39) | 5 (13) | 108 (14) |
   high grade | 25 (50) | 38 (61) | 34 (87) | 664 (86) |
5. Multiple malignancy | Â | Â | Â | Â |
   total | 25 (9) | 19 (15) | 6 (14) | 25 (3) |
   synchronous | 5 (2) | 11 (9) |  |  |
   metachronous | 20 (7) | 8 (6) |  |  |
   not multiple | 260 (91) | 110 (85) | 36 (86) | 867 (97) |
6. Adenomas | Â | Â | Â | Â |
   with adenomas | 13 (18) | 6 (21) | 98 (18) |  |
   without adenomas | 58 (82) | 23 (79) | 450 (82) |  |