Table 3.

Prognostic factors of PFS and OS.

	PFS
			95% CL of hazard ratio
Prognostic factors of PFS	p-values	Hazard ratio	CL inf	CL sup
NIV dosing time	0.001	0.258	0.115	0.580
2nd line NIV	0.009	0.324	0.140	0.752
	OS
			95% CL of hazard ratio
Prognostic factors of OS	p-value	Hazard ratio	CL inf	CL sup
NIV dosing time	<0.001	0.174	0.082	0.370
2nd line NIV	0.004	0.390	0.204	0.746
Adenocarcinoma	<0.014	0.460	0.248	0.854
Bone not involved	0.005	0.420	0.230	0.765
Liver not involved	<0.001	0.300	0.153	0.588
WHO PS 0	0.048	2.005	1.007	3.993