Cox proportional hazards regression analyses for tumour ErbB2-IR in cases followed by expectancy after diagnosis.

The Exp(B) value indicates the increased risk as the score goes from below the cut-off to above the cut-off score. Cut-off values for the parameters were as follows: tumour (T) ErbB2-IR ≤2.75 and >2.75; tumour Ki67 index <2.45% and >2.45%; tumour pAkt-IR, <2.75 and ≥2.75. The Exp(B) for Gleason score 7 is relative to 4–6, while the Exp(B) for Gleason scores 8–10 are relative to 4–6. P values indicate whether or not the Exp(B) values are significantly different from unity, i.e. no change in relative risk compared to the values below the cut-off. Cox proportional hazards regression analyses for tumour ErbB2-IR in cases followed by expectancy after diagnosis.