Univariate and multivariate analysis of the categorical and continuous LNR with cause-specific survival (CSS) and overall survival (OS) of SEER hypopharyngeal cancer patients with lymph node metastasis.

†The P value for Log-rank χ2 tests of cause specific survival was less than 0.001.‡Being calculated using the multivariates Cox regression model for cause specific survival with either continuous or categorical LNR and variates listed at Table 2 as covariates.#The P value for Log-rank χ2 tests of overall survival was less than 0.001.*Being calculated using the multivariates Cox regression model for overall survival with either continuous or categorical LNR and variates listed at Table 2 as covariates.