Table 2

Multivariate analysis in all 221 cases

Kaplan-MeierMultivariate analysis/Cox proportional hazards model
Log-rank test; PParameter estimateSEPHazard ratio95% C.I.aP
Stage<0.00010.980.15<0.0012.72.0–3.7<0.0001
Ki-67 (cancer)b<0.00011.40.50.002c4.51.8–110.001
Grade<0.00010.430.270.121.71.0–2.80.04
Intratumoral CD8+ T cellsd0.00020.170.280.5
Histologye<0.00010.260.30.38
  • a C.I., confidence interval.

  • b Categorized into 0 (<1.5% = median value) and 1 (>1.5%).

  • c Arrow, step-down parameter selection.

  • d Categorized into 0 (<50) and 1 (>50).

  • e Categorized into clear cell type and others.