Figure 2From: Prognostic significance of maximum primary tumor diameter in nasopharyngeal carcinoma Overall survival, failure-free survival, distant metastasis-free survival and local relapse-free survival of 333 patients with nasopharyngeal carcinoma stratified by maximum primary tumor diameter. Hazard ratios (HRs) were calculated with the unadjusted Cox proportional hazards model; p values were calculated with the unadjusted log-rank test.Back to article page