Table 1 Number (%) of study participants according to age group, gender, presentation, tumour site, tumour histology, number of lymph nodes identified and whether or not postoperative chemotherapy was received, by Dukes' stage group
Dukes' stage | |||||
|---|---|---|---|---|---|
A | B | C | D | All | |
Age group | |||||
<65 | 118 (29) | 344 (24) | 269 (28) | 231 (30) | 962 (27) |
65–74 | 158 (39) | 483 (33) | 311 (33) | 270 (35) | 1222 (34) |
75–84 | 97 (24) | 489 (34) | 293 (31) | 214 (28) | 1093 (30) |
85+ | 30 (7) | 142 (10) | 80 (8) | 63 (8) | 315 (9) |
Gender | |||||
Male (%) | 216/403 (54) | 736/1458 (51) | 494/953 (52) | 408/778 (52) | 1854/3592 (52) |
Presentation | |||||
Elective | 390 (97) | 1255 (86) | 830 (87) | 649 (83) | 3124 (87) |
Emergency | 10 (2) | 193 (13) | 116 (12)) | 122 (16) | 441 (12) |
Incidental | 1 (0.2) | 5 (0.3) | 4 (0.4) | 4 (0.5) | 14 (0.4) |
Not known | 2 (0.5) | 4 (0.3) | 3 (0.3) | 3 (0.4) | 12 (0.3) |
Tumour site | |||||
Right colon | 55 (14) | 529 (36) | 290 (30) | 305 (39) | 1179 (33) |
Left colon | 162 (40) | 558 (38) | 344 (36) | 289 (37) | 1353 (38) |
Rectum | 186 (46) | 371 (25) | 319 (34) | 184 (24) | 1060 (30) |
Histology | |||||
AdenoCa | 374 (93) | 1314 (90) | 856 (90) | 681 (86) | 3225 (90) |
Other | 29 (7) | 144 (10) | 97 (10) | 87 (13) | 367 (190) |
Number of lymph nodes identified | |||||
0–4 | 149 (37) | 390 (27) | 286 (30) | 279 (36) | 1104 (31) |
5–10 | 187 (46) | 694 (48) | 469 (49) | 367 (47) | 1717 (48) |
>10 | 67 (17) | 374 (26) | 198 (21) | 132 (17) | 771 (21) |
Postoperative chemotherapy | |||||
Received | 6 (2) | 53 (4) | 119 (12) | 133 (17) | 311 (9) |
Not received | 397 (99) | 1405 (96) | 834 (88) | 645 (83) | 3281 (91) |
Total | 403 (11) | 1458 (41) | 953 (27) | 778 (22) | 3592 (100) |
