Table 2.
Characteristics of colorectal cancer patients by socioeconomic deprivation quintile.
| Deprivation quintile | |||||||
|---|---|---|---|---|---|---|---|
| Factor | Total | Least deprived (Q1) | Q2 | Q3 | Q4 | Most deprived (Q5) | P-valuef |
| N = 38,130 | N = 7,453 (19.5%) | N = 8,123 (21.3%) | N = 7,710 (20.2%) | N = 7,223 (18.9%) | N = 7,622 (20.0%) | ||
| Registrya | |||||||
| Dresden | 11,284 (29.6) | 925 (12.4) | 3,346 (41.2) | 2,854 (37.0) | 1,289 (17.8) | 2,870 (37.7) | <0.0001 |
| Erfurt | 6,783 (17.8) | 215 (2.9) | 438 (5.4) | 1,717 (22.3) | 2,178 (30.2) | 2,235 (29.3) | |
| Regensburg | 20,063 (52.6) | 6,312 (84.7) | 4,339 (53.4) | 3,139 (40.7) | 3,756 (52.0) | 2,517 (33.0) | |
| Sex | |||||||
| Male | 22,214 (58.3) | 4,522 (60.7) | 4,646 (57.2) | 4,465 (57.9) | 4,213 (58.3) | 4,368 (57.3) | <0.0001 |
| Female | 15,916 (41.7) | 2,931 (39.3) | 3,477 (42.8) | 3,245 (42.1) | 3,010 (41.7) | 3,254 (42.7) | |
| Age at diagnosis | |||||||
| 15–54 | 4,262 (11.2) | 1,006 (13.5) | 864 (10.6) | 821 (10.6) | 799 (11.1) | 772 (10.1) | <0.0001 |
| 55–64 | 7,854 (20.6) | 1,574 (21.1) | 1,683 (20.7) | 1,500 (19.5) | 1,513 (20.9) | 1,584 (20.8) | |
| 65–69 | 6,051 (15.9) | 1,119 (15.0) | 1,292 (15.9) | 1,244 (16.1) | 1,145 (15.9) | 1,251 (16.4) | |
| 70–74 | 6,816 (17.9) | 1,273 (17.1) | 1,446 (17.8) | 1,398 (18.1) | 1,251 (17.3) | 1,448 (19.0) | |
| 75–79 | 6,198 (16.3) | 1,234 (16.6) | 1,286 (15.8) | 1,246 (16.2) | 1,195 (16.5) | 1,237 (16.2) | |
| 80+ | 6,949 (18.2) | 1,246 (16.7) | 1,552 (19.1) | 1,501 (19.5) | 1,320 (18.3) | 1,330 (17.4) | |
| Mean (std) | 69.0 (11.5) | 68.2 (11.8) | 69.2 (11.6) | 69.5 (11.5) | 69.1 (11.4) | 69.1 (11.1) | |
| Year of diagnosis | |||||||
| 2000–2007 | 18,394 (48.3) | 3,330 (44.7) | 3,904 (48.0) | 3,602 (46.8) | 3,650 (50.6) | 3,908 (51.3) | <0.0001 |
| 2008–2015 | 19,736 (51.8) | 4,122 (55.3) | 4,219 (51.9) | 4,108 (53.2) | 3,573 (49.5) | 3,714 (48.7) | |
| Tumor location | |||||||
| Colon | 22,946 (60.2) | 4,418 (59.3) | 5,000 (61.6) | 4,753 (61.6) | 4,278 (59.2) | 4,497 (59.0) | <0.0001 |
| Rectumb | 14,392 (37.6) | 2,868 (38.5) | 2,969 (36.6) | 2,765 (35.9) | 2,799 (38.8) | 2,962 (38.9) | |
| Both | 821 (2.2) | 166 (2.2) | 154 (1.9) | 192 (2.5) | 146 (2.0) | 163 (2.1) | |
| Stagec | |||||||
| I | 7,073 (21.6) | 1,244 (19.9) | 1,607 (22.4) | 1,501 (22.2) | 1,257 (21.0) | 1,464 (22.1) | <0.0001 |
| II | 8,898 (27.1) | 1,610 (25.7) | 1,933 (26.9) | 1,878 (27.7) | 1,679 (28.1) | 1,798 (27.1) | |
| III | 9,182 (28.0) | 1,898 (30.3) | 2,013 (28.1) | 1,787 (26.4) | 1,641 (27.4) | 1,843 (27.8) | |
| IV | 7,663 (23.4) | 1,511 (24.1) | 1,621 (22.6) | 1,609 (23.7) | 1,404 (23.5) | 1,518 (22.9) | |
| Gradingd | |||||||
| Low | 26,689 (73.8) | 5,636 (80.0) | 5,637 (73.4) | 5,195 (71.4) | 5,034 (72.5) | 5,187 (71.8) | <0.0001 |
| High | 9,482 (26.2) | 1,408 (20.0) | 2,047 (26.6) | 2,083 (28.6) | 1,911 (27.5) | 2,033 (28.2) | |
| Surgery | |||||||
| No | 3,548 (9.3) | 692 (9.3) | 720 (8.9) | 711 (9.2) | 690 (9.6) | 735 (9.6) | <0.0001 |
| Yes | 34,582 (90.7) | 6,760 (90.7) | 7,403 (91.1) | 6,999 (90.8) | 6,533 (90.4) | 6,887 (90.4) | |
| R classificatione | |||||||
| R0 | 29,418 (91.9) | 5,849 (94.7) | 6,440 (92.4) | 5,924 (90.8) | 5,481 (91.3) | 5,724 (90.3) | <0.0001 |
| R1/2 | 2,592 (8.1) | 330 (5.3) | 533 (7.6) | 597 (9.1) | 520 (8.6) | 612 (9.7) | |
Q, Quintile; std, standard deviation.
a
included regions: Upper Palatinate, Lower Bavaria, and the districts of Erfurt, Eisenach, Wartburg, Unstrut-Hainich, Gotha, Sömmerda, Ilm, Weimarer Land, Meisen, Saxon Switzerland-East Ore Mountains, and Bautzen.
b
including rectal (ICD-10 C20) and rectosigmoid (C19) tumors.
c
missing stage at diagnosis: n = 5,314 (13.9%).
d
missing grading: n = 1,959 (5.1%).
e
missing R classification among patients with surgery: n = 2,572 (7.4%).
f
p-value from Chi-square test comparing the distribution of the factor across deprivation quintiles.