Table 3 Cox univariate analysis of the impact on disease-free survival for different patient and tumour characteristics
RR (95% CI)p value
Age, years
    <501.00
    ⩾500.71 (0.48–1.06)0.09
NHG
    Grade 1+21.00
    Grade 33.16 (2.27–4.38)<0.001
Tumour size
    <20 mm1.00
    ⩾20 mm2.91 (1.58–3.04)<0.001
Nodal status
    Negative1.00
    Positive3.37 (2.38–4.76)<0.001
Ki67
    <10%1.00
    ⩾10%1.91 (1.31–2.79)0.001
PgR
    <10%1.00
    ⩾10%0.51 (0.35–0.75)0.001
ERα
    <10%1.00
    ⩾10%0.71 (0.46–1.08)0.11
ERβ
    <10%1.00
    ⩾10%0.87 (0.60–1.26)0.47
ERα+
    ERβ<10%1.00
    ERβ⩾10%1.01 (0.79–1.28)0.94
ERα−
    ERβ<10%1.00
    ERβ⩾10%1.30 (0.56–3.06)0.54
  • NHG, Nottingham Histological Grade; ER, oestrogen receptor; PgR, progesterone receptor.