Table 4.

Multivariate analysis: Cox’s hazard ratio and p value for treatment in three stratified groups

Group	Treatment	Hazard ratio	95% CI	p value
Male/squamous	IT	0.75	0.51, 1.04	0.088
	CT	0.75	0.52, 1.13	0.16
	RT	0.71	0.55, 0.92	0.009
Male/adenocarcinoma	IT	0.386	0.32, 1.03	0.102
	CT	0.63	0.48, 0.85	0.003
	RT	0.79	0.63, 0.98	0.032
Female/adeno.	IT	0.73	0.55, 0.94	0.016
	CT	0.76	0.48, 1.40	0.339