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. Author manuscript; available in PMC: 2016 Apr 5.
Published in final edited form as: Laryngoscope. 2014 Oct 4;124(12):2707–2713. doi: 10.1002/lary.24658

Table 4. Association between initial treatment modality and risk of death from any cause.

Model All Patients
HR (95% CI)		 Excluding patients with T4 disease
HR (95% CI)
Unadjusted 0.97 (0.82 - 1.15) 1.13 (0.89 - 1.42)
Adjusted
 Multivariable model without propensity score 0.78 (0.64 - 0.95) 0.94 (0.72 - 1.23)
 Propensity score as a continuous variable 0.82 (0.68 - 0.99) 0.99 (0.77 - 1.28)
 Stratified by propensity score quintile 0.82 (0.68 - 0.99) 1.03 (0.80 - 1.32)

Abbreviations: HR, hazard ratio; CI, confidence interval

Adjusted HR for impact of TL (compared with CTRT) on risk of death, adjusted for propensity to receive TL. Propensity score estimated as function of age, sex, race, census tract median income, marital status, urban-rural residence, geographic region, tumor site, clinical T stage, lymph node involvement, comorbidity score and year of diagnosis.