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Table 3 Multivariate analysis of overall survival

From: Prognostic effect of matrix metalloproteinase-9 in patients with resected Non small cell lung cancer

Prognostic factor β P Relative risk 95% confidence interval
Overall histology     
  Tumor MMP-9 expression 0.043 0.807 1.044 0.741–1.469
  Lymphovascular invasion 0.661 0.005 1.937 1.219–3.078
  Pathologic stage (I vs. II) 0.904 0.000 2.469 1.686–3.616
  Pathologic stage (I vs. IIIA) 1.123 0.000 3.073 1.938–4.875
Squamous cell carcinoma     
  Tumor MMP-9 expression −0.419 0.196 0.658 0.349–1.241
Adenocarcinoma     
  Tumor MMP-9 expression 0.295 0.259 1.343 0.805–2.242
  1. MMP-9: matrix metalloproteinase-9.