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Table 5 Independent prognostic survival factors for local relapse, disease failure and death in multivariate Cox regression analyses

From: Comparison of the seventh and eighth editions of the UICC/AJCC staging system for nasopharyngeal carcinoma: analysis of 1317 patients treated with intensity-modulated radiotherapy at two centers

End-point Factor Value HR 95% HR
Local failure Prevertebral muscle 0.048 1.319 1.003–1.734
Medial pterygoid muscle 0.011 1.607 1.116–2.315
Disease failure Gender (female vs. male) 0.012 1.539 1.100–2.154
Prevertebral muscle < 0.001 1.339 1.171–1.532
Cranial nerve < 0.001 1.675 1.291–2.171
8th edition N category < 0.001 1.692 1.461–1.960
Death Gender 0.007 1.715 1.162–2.530
Age (≤ 50 vs. >  50) 0.031 1.365 1.028–1.817
Prevertebral muscle 0.001 1.308 1.111–1.541
Skull base infiltration 0.011 1.582 1.113–2.248
Cranial nerve < 0.001 1.860 1.454–2.379
8th edition N category < 0.001 1.615 1.362–1.191
  1. HR hazard ratio, CI confidence interval