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Table 2 Univariate and multivariate analysis for locoregional recurrence in patients undergoing marginal mandibulectomy

From: Oncologic outcome of marginal mandibulectomy in squamous cell carcinoma of the lower gingiva

Variables Univariate Cox model
  Log-rank test HR(95% CI) p
Age (<62 vs ≥62) 0.268   
Sex 0.456   
Dentate 0.378   
Node stage (N0 vs N+) < 0.001 2.123(0.936–5.287) 0.099
NLR* (<2.8 vs ≥2.8) 0.046 1.875(1.456–3.512) 0.021
Bone invasion 0.004   
 None    
 Cortical invasion   1.831 (1.087–3.653) 0.018
 Medullary invasion   2.375(1.566–5.997) 0.005
Perineural invasion 0.008 2.872(0.813–8.633) 0.329
Lymphovascular invasion 0.111   
Extracapsular spread 0.010 3.157(0.846–13.662) 0.123
Differentiation (Well vs moderate +poor) 0.039 2.003(1.174–5.088) 0.008
Radiotherapy 0.163   
  1. *: NLR neutrophil lymphocyte ratio