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Table 2 Cox regression analysis for various potential prognostic factors in survival

From: Increased interferon alpha receptor 2 mRNA levels is associated with renal cell carcinoma metastasis

   Overall survival (103 patients) Disease-free survival (68 patients) in M0 at Nephrectomy
Variable Unfavorable/favorable characteristics No. of Patients Analysis Relative risk 95% confidential interval P value No. of Patients Analysis Relative risk 95% confidential interval P value
    Univariate (U) 11.927 4.084 – 34.864 < 0.0001   U 6.357 2.109 – 19.163 0.001
Grade 01/02/2003 32/57/14      17/39/12     
    Multivariate (M) 8.658 1.647 – 45.529 0.0108   M 1.006 0.175 – 5.776 0.9942
    U 8.305 3.430 – 32.714 < 0.0001   U 4.691 2.501 – 13.822 0.002
pT > 3/2 < 31/72      13/55     
    M 2.171 1.626 – 7.189 0.0225   M 2.447 1.004 – 5.965 0.0489
    U 9.486 3.479 – 25.864 < 0.0001      
Cell type sarcomatoid/ 12/91      0/68     
  acinar   M 2.773 1.302 – 9.587 0.017      
    U 11.798 3.922 – 35.492 < 0.0001      
Metastasis (+)/(-) 35/68      0/68     
    M 4.362 1.973 – 19.567 0.026      
    U 4.267 1.515 – 12.021 0.006   U 2.028 0.592 – 6.952 0.2605
IFNAR1 high/low 47/56      25/43     
    M 1.958 0.661 – 5.804 0.2252   M 3.244 0.788 – 13.356 0.1031
    U 10.695 4.345 – 26.323 < 0.0001   U 11.03 2.920 – 41.655 0.0004
IFNAR2 high/low 35/68      18/50     
    M 3.813 1.295 – 11.226 0.0151   M 7.604 1.559 – 37.101 0.0121