Table 1. Baseline characteristics at registration for the whole group.

Characteristics	Number of patients
Total number of patients	339
Median age (years)	62
Range	29–80
<70 years old	267 (78.8%)
⩾70 years old	72 (21.2%)
Gender
Male	201 (59.3%)
Female	138 (40.7%)
Performance status
0	90 (26.6%)
1	205 (60.5%)
2	40 (11.8%)
3	1 (0.3%)
Unknown	3 (0.9%)
Primary tumour sites
Colon	209 (61.7%)
Rectum	88 (26%)
Rectosigmoid junction	20 (5.9%)
Synchrounous	13 (3.8%)
Others	4 (1.2%)
Unknown	5 (1.5%)
Involved disease sites
Liver	246 (72.6%)
Lung	143 (42.2%)
Peritoneum	55 (16.2%)
Primary tumour in situ or local recurrence	107 (31.6%)
Previous radical pelvic radiotherapy
Yes	51 (15%)
No	288 (85%)