Table 2 Characteristics of synchronous and metachronous liver metastases
From: Colorectal cancer liver metastases – a population-based study on incidence, management and survival
All liver metastases (n = 272) | Synchronous (n = 166) | Metachronous (n = 106) | Pa | |
|---|---|---|---|---|
Sex ratio (M: F) | 157: 115 | 93: 73 | 64: 42 | 0.478 |
Age category | ||||
< 50 | 20 (7.4) | 12 (7.2) | 8 (7.6) | 0.950 |
51–65 | 100 (36.8) | 61 (36.8) | 39 (36.8) | |
66–80 | 104 (38.2) | 62 (37.4) | 42 (39.6) | |
> 80 | 48 (17.6) | 31 (18.6) | 17 (16.0) | |
Primary tumour positionb (n = 262) | ||||
Right-sided tumours | 77 (29.4) | 53 (33.1) | 24 (23.5) | 0.096 |
Left-sided tumours | 185 (70.6) | 107 (66.9) | 78 (76.5) | |
Primary tumour positionc | ||||
Caecum/ascending colon | 64 (24.4) | 42 (26.2) | 22 (21.6) | 0.127 |
Transverse colon | 13 (5.0) | 11 (6.9) | 2 (2.0) | |
Descending /sigmoid colon | 90 (34.4) | 56 (35.0) | 34 (33.3) | |
Rectum | 95 (36.2) | 51 (31.9) | 44 (43.1) | |
Number of liver metastases | ||||
1 | 55 (20.2) | 17 (10.2) | 38 (35.8) | <0.001 |
2–3 | 69 (25.4) | 37 (22.3) | 32 (30.2) | |
≥ 4 | 148 (54.4) | 112 (67.5) | 36 (34.0) | |
No of segments involved | ||||
1–3 | 138 (50.7) | 64 (38.5) | 74 (69.1) | <0.001 |
4–6 | 54 (19.9) | 36 (21.7) | 18 (17.0) | |
7–8 | 80 (29.4) | 66 (39.8) | 14 (13.2) | |