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Table 4 Summary of univariate and multivariate Cox regression analysis of overall survival duration

From: Increased expression of MMP9 is correlated with poor prognosis of nasopharyngeal carcinoma

  Univariate analysis Multivariate analysis
Parameter P HR 95%CI P HR 95%CI
Age       
   ≥50 vs. <50 years 0.110 0.664 0.402-1.097 0.038 0.556 0.320-0.967
Gender       
   Male vs. female 0.812 1.068 0.621-1.836 0.868 1.050 0.588-1.875
Smoking       
   Yes vs. No 0.538 0.836 0.473-1.477 0.915 0.966 0.511-1.826
T classification       
   T1-T2 vs. T3-T4 0.034 1.739 1.042-2.901 0.191 1.519 0.812-2.840
N classification       
   N0-N1 vs. N2--N3 0.000 2.943 1.664-5.205 0.018 2.849 1.197-6.782
M classification       
   M0 vs. M1 0.000 0.218 0.093-0.509 0.002 0.242 0.097-0.607
Clinical stage       
   I-II vs. III-IV 0.000 4.323 2.055-9.092 0.971 1.021 0.321-3.251
MMP expression       
High expression vs. Low expression* 0.001 5.293 1.918-14.603 0.003 5.193 1.728-15.608