Table IV.

Multivariate analysis of the clinicopathological factors associated with OS in recurrent laryngeal carcinoma patients.

	OS
Variables	Odds ratio	95% CI	P-values
Model Aa
Grade	1.295	0.997–1.682	0.053
Smoking index	1.152	0.804–1.649	0.441
Age, years	1.247	0.882–1.763	0.211
Initial T stage	1.755	1.217–2.529	0.003
Nodal status	1.496	0.998–2.243	0.051
Primary site	1.134	0.849–1.516	0.395
Chemotherapy or no chemotherapy for the initial tumor	1.130	0.964–1.326	0.132
Radiotherapy or no radiotherapy for the initial tumor	1.149	0.965–1.370	0.120
Mode of recurrence	1.145	0.885–1.481	0.303
Eligibility for surgery	0.460	0.323–0.655	<0.001
Disease-free interval	0.454	0.319–0.646	<0.001
Model Ba
Age, years	1.355	0.963–1.905	0.081
Smoking index	1.342	0.944–1.907	0.101
Grade	1.207	0.935–1.559	0.149
Primary site	1.190	0.892–1.588	0.236
Initial T stage	2.126	1.501–3.013	<0.001
Nodal status	1.893	1.261–2.841	0.002
Chemotherapy or no chemotherapy for the initial tumor	1.063	0.904–1.250	0.460
Radiotherapy or no radiotherapy for the initial tumor	1.167	0.980–1.389	0.083
Model Ca
Disease-free interval	0.439	0.308–0.613	<0.001
Eligibility for surgery	0.407	0.291–0.579	<0.001
Mode of recurrence	1.556	1.223–1.977	<0.001

OS, overall survival; CI, confidence interval.