Baseline characteristics of eligible patients
| Variable | Accrual method; no. (%) of patients* | ||
|---|---|---|---|
| Population-based method alone n = 18 | Traditional methods alone n = 14 | Total n = 26† | |
| Age, median (range), yr | 64 (35–91) | 57 (35–76) | 61 (35–91) |
| Female sex | 9 (50) | 4 (29) | 10 (38) |
| Distance from hepatobiliary cancer centre,‡ median (range), km | 20 (0–53) | 0 (0–53) | 3 (0–53) |
| Primary tumour site | |||
| Right sided | 5 (28) | 4 (29) | 9 (35) |
| Left sided | 9 (50) | 4 (29) | 10 (38) |
| Rectum | 4 (22) | 6 (43) | 7 (27) |
| Imaging | |||
| CT | 9 (50) | 4 (29) | 11 (42) |
| MRI | 2 (11) | 3 (21) | 3 (12) |
| CT and MRI | 7 (39) | 7 (50) | 12 (46) |
| No. of liver metastases, median (range) | 2 (1–8) | 2 (1–9) | 2 (1–9) |
| Bilobar liver metastases | 10 (56) | 7 (50) | 12 (46) |
| Major liver resection | 11 (61) | 10 (71) | 18 (69) |
| Additional organ§ | 3 (17) | 2 (14) | 3 (12) |
| Size of metastases, median (range), mm | 23 (6–70) | 36 (7–82) | 26 (6–82) |