Table 1 Characteristics of CRC for each calendar period of admission
From: Long-term trends in colorectal cancer: incidence, localization, and presentation
Year | 1980–1986 | 1987–1996 | 1997–2006 | 2007–2016 | Total | P value |
|---|---|---|---|---|---|---|
Patients | 0.53 a | |||||
Male | 136 (51) | 270 (54) | 341 (51) | 447 (54) | 1.194 | |
Female | 133 (49) | 234 (46) | 322 (49) | 385 (46) | 1.074 | |
Age | 0.004 b | |||||
< 65 | 75 (28) | 130 (26) | 189 (29) | 183 (22) | 577 | |
65–75 | 83 (31) | 179 (36) | 173 (26) | 272 (33) | 707 | |
75–80 | 50 (19) | 76 (15) | 122 (18) | 142 (17) | 390 | |
80–85 | 46 (17) | 75 (15) | 109 (16) | 128 (15) | 358 | |
> 85 | 15 (6) | 44 (9) | 70 (11) | 107 (13) | 236 | |
Localization | 0.29 c | |||||
Right colon | 99 (37) | 177 (35) | 252 (38) | 327 (39) | 855 | |
Left colon | 78 (29) | 168 (33) | 211 (32) | 239 (29) | 696 | |
Rectum | 92 (34) | 159 (32) | 200 (30) | 266 (32) | 717 | |
Acute presentation | ||||||
Colorectal obstruction | 23 (8.6) | 57 (11.3) | 63 (9.5) | 88 (10.6) | 231 | 0.69 a |
Perforation | 18 (6.7) | 17 (3.4) | 20 (3.0) | 13 (1.6) | 68 | < 0.001 a |
Stage | ||||||
I | 34 (13) | 53 (11) | 92 (14) | 173 (21) | 353 | < 0.001 d |
II | 81 (30) | 163 (32) | 243 (37) | 309 (37) | 798 | |
III | 70 (26) | 119 (24) | 133 (20) | 174 (21) | 495 | |
IV | 65 (24) | 128 (25) | 155 (23) | 174 (21) | 524 | |
Unknown | 19 (7) | 41 (8) | 40 (6) | 2 (0.2) | 103 | |