Figure 1. Multivariate Cox regression analyses of recurrence-free survival and overall survival in OHSCC patients.
Clinical variables, DCE-MRI and DWI parameters, as well as PET/CT parameters were included as covariates in the multivariate model. The results indicated that tumor subsite, alcohol drinking, Ktrans, and Kep were independent predictors of recurrence-free survival, whereas smoking, Ktrans, Kep, and uniformity independently predicted overall survival. CI, confidence interval; HR, hazard ratio; N/A, not applicable.