Table 4.

Distribution of patients according to risk groups

P < 0.0001 HR 1.98	N = 134	OS Median months [95 % CI]
Risk 0	29	13.2 [9.6 – NR]
Risk 1	50	9.9 [6.7 – 11.8]
Risk 2	34	3.5 [2.7– 6.5]
Risk 3	13	2.4 [1.1 – 6.17]
Missinga	8

Patients group Risk 0, 1, 2 or 3: patients having 0, 1, 2 or 3 adverse factor respectively

Prognostic factors: PS ≥ 1, haemoglobin ≤10 g/dl, presence of liver metastasis at baseline

^a Patients with at least one missing prognostic factor