Table 1 Demographics and clinical characteristics
Colon | Rectum | Total | ||||
|---|---|---|---|---|---|---|
(N) | (N) | (N) | ||||
Age (years (%)) | ||||||
≤75 | 7107 | (55.8) | 3352 | (69.9) | 10459 | (59.7) |
>75 | 5616 | (44.1) | 1443 | (30.1) | 7059 | (40.3) |
Missing data | 3 | (0.0) | - | 3 | (0.0) | |
Gender (%) | ||||||
Male | 6179 | (48.6) | 2854 | (59.5) | 9033 | (51.6) |
Female | 6547 | (51.4) | 1941 | (40.5) | 8488 | (48.4) |
Elective surgery (%) | ||||||
Yes | 10306 | (81.0) | 4731 | (98.7) | 15037 | (85.8) |
No | 2419 | (19.0) | 60 | (1.3) | 2479 | (14.1) |
Missing data | 1 | (0.0) | 4 | (0.1) | 5 | (0.0) |
Stage* (%) | ||||||
II (T3, T4, N0) | 6842 | (53.8) | 2211 | (46.1) | 9053 | (51.7) |
III (Any T, N1, N2) | 5884 | (46.2) | 2584 | (53.9) | 8468 | (48.3) |
Mucinous (%) | ||||||
Yes | 2583 | (20.3) | 651 | (13.6) | 3234 | (18.5) |
No | 8863 | (69.6) | 3593 | (74.9) | 12456 | (71.1) |
Missing data | 1280 | (10.0) | 551 | (11.5) | 1831 | (10.0) |
Examined lymph nodes (%) | ||||||
<12 | 1936 | (15.2) | 1171 | (24.4) | 3107 | (17.7) |
≥12 | 10644 | (83.6) | 3571 | (74.5) | 14215 | (81.1) |
Missing data | 146 | (1.1) | 53 | (1.1) | 199 | (1.1) |
Tumor differentiation* (%) | ||||||
Low grade (G1, G2) | 9268 | (72.8) | 3830 | (79.9) | 13098 | (74.8) |
High grade (G3, G4) | 3004 | (23.6) | 746 | (15.6) | 3750 | (21.4) |
Not indicated | 390 | (3.1) | 193 | (4.0) | 583 | (3.3) |
Missing data | 64 | (0.5) | 26 | (0.5) | 90 | (0.5) |
ASA† (%) | ||||||
1 | 1842 | (14.5) | 1002 | (20.9) | 2844 | (16.2) |
2 | 6443 | (50.6) | 2620 | (54.6) | 9063 | (51.7) |
3 | 3719 | (29.2) | 1010 | (21.1) | 4729 | (27.0) |
4 | 362 | (2.8) | 66 | (1.4) | 428 | (2.4) |
5 | 4 | (0.0) | 0 | (0.0) | 4 | (0.0) |
Missing data | 356 | (2.8) | 97 | (2.0) | 453 | (2.6) |
Region of treatment (%) | ||||||
Northern | 1164 | (9.1) | 444 | (9.3) | 1608 | (9.2) |
Uppsala/Örebro | 2873 | (22.6) | 1110 | (23.1) | 3983 | (22.7) |
Stockholm/Gotland | 2380 | (18.7) | 868 | (18.1) | 3248 | (18.5) |
Western | 2311 | (18.2) | 909 | (19.0) | 3220 | (18.4) |
South-eastern | 1533 | (12.0) | 558 | (11.6) | 2091 | (11.9) |
Southern | 2464 | (19.4) | 906 | (18.9) | 3370 | (19.2) |
Missing data | 1 | (0.0) | - | 1 | (0.0) | |