Table 1. Patient characteristics.
|
Patient characteristics |
||||
|---|---|---|---|---|
| Total N=121 628 | Mucinous carcinoma N=12 863 | Non-mucinous carcinoma N=108 765 | Pa | |
|
Location | ||||
| Caecum | 29 987 (24.7%) | 4053 (31.5%) | 25 934 (23.8%) | <0.001 |
| Ascending colon | 25 240 (20.8%) | 3371 (26.2%) | 21 869 (20.1%) | |
| Hepatic flexure | 6471 (5.3%) | 876 (6.8%) | 5595 (5.1%) | |
| Transverse colon | 11 826 (9.7%) | 1375 (10.7%) | 10 451 (9.6%) | |
| Splenic flexure | 4695 (3.9%) | 485 (3.8%) | 4210 (3.9%) | |
| Descending colon | 7642 (6.3%) | 657 (5.1%) | 6985 (6.4%) | |
| Sigmoid colon | 35 767 (29.4%) | 2046 (15.9%) | 33 721 (31.0%) | |
|
Tumour stage (AJCC 6th ed.) | ||||
| I | 28 541 (23.5%) | 1628 (12.7%) | 26 913 (24.7%) | <0.001 |
| IIA | 33 934 (27.9%) | 4074 (31.7%) | 29 860 (27.5%) | |
| IIB | 4895 (4.0%) | 812 (6.3%) | 4083 (3.8%) | |
| IIIA | 3999 (3.3%) | 304 (2.4%) | 3695 (3.4%) | |
| IIIB | 20 396 (16.8%) | 2320 (18.0%) | 18 076 (16.6%) | |
| IIIC | 12 291 (10.1%) | 1641 (12.8%) | 10 650 (9.8%) | |
| IV | 17 572 (14.4%) | 2084 (16.2%) | 15 488 (14.2%) | |
|
T-stage | ||||
| T1 | 15 992 (13.1%) | 501 (3.9%) | 15 491 (14.2%) | <0.001 |
| T2 | 17 833 (14.7%) | 1555 (12.1%) | 16 278 (15.0%) | |
| T3 | 70 060 (57.6%) | 8005 (62.2%) | 62 055 (57.1%) | |
| T4 | 17 743 (14.6%) | 2802 (21.8%) | 14 941 (13.7%) | |
|
Retrieved regional lymph nodes | ||||
| <12 | 36 965 (30.4%) | 3584 (27.9%) | 33 381 (30.7%) | <0.001 |
| 12+ | 84 663 (69.6%) | 9279 (72.1%) | 75 384 (69.3%) | |
|
Grade | ||||
| G1 | 10 522 (8.7%) | 1338 (10.4%) | 9184 (8.4%) | <0.001 |
| G2 | 83 425 (68.6%) | 7887 (61.3%) | 75 538 (69.5%) | |
| G3 | 21 647 (17.8%) | 2533 (19.7%) | 19 114 (17.6%) | |
| G4 | 2098 (1.7%) | 304 (2.4%) | 1794 (1.6%) | |
| Unknown | 3936 (3.2%) | 801 (6.2%) | 3135 (2.9%) | |
|
Carcinoembryonic antigen | ||||
| Normal | 39 907 (32.8%) | 3823 (29.7%) | 36 084 (33.2%) | <0.001 |
| Elevated | 29 035 (23.9%) | 3674 (28.6%) | 25 361 (23.3%) | |
| Unknown/borderline | 52 686 (43.3%) | 5366 (41.7%) | 47 320 (43.5%) | |
|
Year of diagnosis | ||||
| 2004–2005 | 31 935 (26.3%) | 4028 (31.3%) | 27 907 (25.7%) | <0.001 |
| 2006–2008 | 46 578 (38.3%) | 4807 (37.4%) | 41 771 (38.4%) | |
| 2009–2011 | 43 115 (35.4%) | 4028 (31.3%) | 39 087 (35.9%) | |
|
Age (years) | ||||
| <50 | 11 503 (9.5%) | 1360 (10.6%) | 10 143 (9.3%) | <0.001 |
| 50–64 | 35 540 (29.2%) | 3203 (24.9%) | 32 337 (29.7%) | |
| 65–79 | 47 118 (38.7%) | 4998 (38.9%) | 42 120 (38.7%) | |
| 80+ | 27 467 (22.6%) | 3302 (25.7%) | 24 165 (22.2%) | |
|
Gender | ||||
| Male | 59 065 (48.6%) | 5915 (46.0%) | 53 150 (48.9%) | <0.001 |
| Female | 62 563 (51.4%) | 6948 (54.0%) | 55 615 (51.1%) | |
|
Ethnicity | ||||
| Caucasian | 96 594 (79.4%) | 10 566 (82.1%) | 86 028 (79.1%) | <0.001 |
| African-American | 14 773 (12.1%) | 1511 (11.7%) | 13 262 (12.2%) | |
| Other/unknown | 10 261 (8.4%) | 786 (6.1%) | 9475 (8.7%) | |
|
Marital status | ||||
| Married | 66 463 (54.6%) | 6702 (52.1%) | 59 761 (54.9%) | <0.001 |
| Single | 15 581 (12.8%) | 1662 (12.9%) | 13 919 (12.8%) | |
| Widowed | 23 446 (19.3%) | 2894 (22.5%) | 20 552 (18.9%) | |
| Other/unknown | 16 138 (13.3%) | 1605 (12.5%) | 14 533 (13.4%) | |
n (%).
a
Chi-square test.