Table 3.

Multivariate analysis of all the patients.

Parameter	Coef	HR	Lower CI	Upper CI	p value
Age	0.008	1.008	0.998	1.018	0.133
Ann Arbor stage	0.338	1.403	1.165	1.688	<0.001
B symptoms	0.446	1.561	1.085	2.247	0.016
Chemotherapy cycles	-1.119	0.327	0.229	0.465	<0.001
Radiotherapy	-0.003	0.997	0.688	1.445	0.988
Histology subgroups	-0.048	0.953	0.797	1.139	0.596