Demographic, clinical and pathological characteristics according to right-sided colon cancer versus left-sided colon cancer and specific colon cancer localisation among 23 487 patients, Denmark 2001–2011
| RCC | LCC | p Value | Caecum | Ascending colon | Hepatic flexure | Transverse colon | Splenic flexure | Descending colon | Sigmoid colon | p Value | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| N=10855 | N=12.632 | N=4531 | N=2745 | N=1668 | N=1911 | N=1103 | N=1005 | N=10524 | |||
| Age (median years) (First and third quartiles) | 74.3 65.9–81.1 | 71.8 63.1–79.3 | <0.0001 | 74.2 65.5–80.9 | 74.7 66.8–81.5 | 74.6 66.4–81.3 | 73.8 65.3–80.9 | 72.0 63.4–79.9 | 71.7 63.0–79.1 | 71.7 63.1–79.3 | <0.0001 |
| Sex (% women) | 56.8 | 46.0 | <0.0001 | 58.4 | 58.6 | 50.8 | 55.6 | 49.3 | 48.0 | 45.4 | <0.0001 |
| ASA score (% score ≥3) | 30.6 | 27.9 | <0.0001 | 29.0 | 29.9 | 33.0 | 33.5 | 32.6 | 31.4 | 27.1 | <0.0001 |
| UICC stage (% III+IV) | 56.6 | 54.6 | <0.0001 | 59.4 | 53.0 | 56.4 | 55.5 | 60.0 | 58.2 | 53.7 | <0.0001 |
| Distant metastases (%) | 25.3 | 25.1 | 0.69 | 27.3 | 21.7 | 25.8 | 25.5 | 28.7 | 27.4 | 24.5 | <0.0001 |
| Number of lymph nodes harvested (median, first and third quartiles) | 14 10–20 | 12 7–17 | <0.0001 | 14 11–21 | 15 11–21 | 15 10–21 | 13 8–19 | 12 6–18 | 13 8–19 | 12 6–17 | <0.0001 |
ASA, American Society of Anaesthesiologists; UICC, Union for International Cancer Control; RCC, right-sided colon cancer; LCC, left-sided colon cancer.