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. Author manuscript; available in PMC: 2015 Oct 8.
Published in final edited form as: Otolaryngol Head Neck Surg. 2014 Aug 18;151(4):627–633. doi: 10.1177/0194599814545747

Table 2.

Hazard Ratios for Cause-Specific Mortality Obtained by Multivariate Regression, Adult Cohort.

Covariate (reference group) Hazard Ratio (95% confidence interval) P Value
Gender (female)
 Male 1.39 (1.27, 1.51) <.001
Decade of diagnosis (2000s)
 1990s 2.00 (1.83, 2.18) <.001
 1980s 1.90 (1.71, 2.12) <.001
 1970s 1.51 (1.28, 1.80) <.001
Radiation status (not given)
 Given 1.83 (1.70, 1.97) <.001
Stage (I)
 II 1.94 (1.17, 3.22) .01
 III 2.76 (1.54, 4.96) .001
 IV 8.16 (5.12, 12.99) <.001