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Table 2 Univariate and multivariate Cox Regression Models for estimating the overall survival

From: Parathyroid hormone-related protein serves as a prognostic indicator in oral squamous cell carcinoma

Characteristics HR 95% CI P
Univariate analysis    
Overall survival    
Age (<60 y vs ≥60 y) 0.558 0.254 to 1.225 1.146
Gender (male vs female) 0.935 0.880 to 4.252 0.100
Alcohol history (nonsmoker vs smoker) 1.543 0.683 to 3.484 0.297
Smoking history (nonsmoker vs smoker) 1.481 0.699 to 3.137 0.305
Disease site 1.025 0.763 to 1.377 0.872
TNM stage 1.715 1.179 to 2.492 0.005
Lymph node metastasis (pN0 vs pN1 to pN2) 2.596 1.238 to 5.445 0.012
Pathological differentiation 2.294 1.448 to 3.634 0.001
PTHLH expression (low vs high) 0.022 0.003 to 0.159 <0.001
Multivariate analysis    
Overall survival    
PTHLH expression (low vs high) 0.024 0.003 to 0.180 <0.001
Pathological differentiation 2.156 1.268 to 3.666 0.005
Lymph node metastasis (pN0 vs pN1 to pN2) 1.100 0.423 to 2.861 0.845
TNM stage 1.193 0.730 to 1.949 0.482
  1. Abbreviations: HR hazard ration, CI confidence interval, N lymphnode, TNM tumor-lymph node-metastasis classification.