Table 2.

Hazard of death: multivariable analysis

Patient characteristics	Unadjusted HR	95% CI	P value	Fully adjusted HR	95% CI	P value
Female	1			1
Male	1.13	0.65 to 1.96	p=0.656	1.17	0.66 to 2.10	p=0.574
PS 0	1			1
PS≥1	2.00	1.14 to 3.53	p=0.016	2.11	1.12 to 3.97	p=0.020
Stage I	1			1
Stage II	2.07	0.49 to 8.79	p=0.326	1.55	0.35 to 6.79	p=0.563
Stage III	4.31	1.01 to 18.35	p=0.050	3.18	0.72 to 14.00	p=0.126
Radiotherapy	1			1
Chemoradiotherapy	0.92	0.50 to 1.71	p=0.793	0.88	0.45 to 1.72	p=0.708
GTV<6 cm	1			1
GTV≥6 cm	1.96	11.0 to 3.47	p=0.021	1.86	1.03 to 3.37	p=0.041

HRs by patient characteristics, treatment modality and gross tumour volume lengths.

GTV, gross tumour volume; PS, performance status.