Table 5.

Univariate and multivariate analysis for Progression Free Survival

	Univariate Analysis		Multivariate Analysis
Variable	HR (95% CI)	p-value	HR (95%CI)	p-value
Age > 65	1.04 (0.39–1.70)	0.82	NA	NA
Male sex	1.17 (0.44–1.90)	0.52	NA	NA
G3 vs G1 G2 vs G1	1.87 (0.90–3.88) 1.76 (0.51–6.10)	0.92 0.38	NA NA	NA NA
T3-T4 vs T1-T2	1.73 (0.89–3.33)	0.11	NA	NA
N + ve vs N -ve	2.16 (1.18–3.96)	0.012	1.98 (1.01–3.88)	0.046
RT total dose	1.12 (0.79–1.58)	0.52	NA	NA
Boost: yes vs no	0.84 (0.32–2.18)	0.72	NA	NA
OTT > 42 days	1.18 (0.53–1.85)	0.38	NA	NA
Hb	0.57 (0.39–0.85)	0.005	0.78 (0.53–1.15)	0.12
Response	5.39 (2.79–10.4)	< 0.0001	5.43 (2.75–10.70)	< 0.0001

RT Radiotherapy, Hb Basal haemoglobin levels (gr/dl), Boost Radiotherapy boost: given vs not, Response Incomplete response vs complete response, OTT Total legth of chemo-radiation treatment, N node, +ve positive, −ve negative, HR hazard ratio, CI confidence interval, NA not available