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Table 7 Univariate and multivariate Cox proportional hazard model analysis of overall mortality

From: A different entity: a population based study of characteristics and recurrence patterns in oropharyngeal squamous cell carcinomas

Variable Category Univariate Cox proportional hazards (95 % CI) p-value* Multivariate Cox proportional hazards (95 % CI) p-value*
Overall mortality
Primary site Non-oropharyngeal vs Oropharyngeal 1.128 (0.698–1.823) 0.6229 1.822 (1.025–3.238) 0.0408
COPD Yes vs. No    2.022 (1.205–3.394) 0.0077
Prior Cancer Yes vs. No    1.622 (0.980–2.683) 0.0599
Primary Treatment Surgery vs. Chemotherapy/Radiation    0.367 (0.212–0.636) 0.0004
Stage Stage 4 vs Other    2.117 (1.306–3.432) 0.0023
Age Age ≥ 55 vs <55    1.721 (0.928–3.193) 0.0850
  1. *α = 0.05, significant results in bold using Cox proportional hazard model