Table 5

 Multivariate analysis (Cox regression)

VariableHR (95% CI)
Tumour >7 cm2.84 (1.98 to 4.08)
Tumour 4.1–7 cm1.86 (1.38 to 2.51)
Tumour 2.1–4 cm1.45 (1.08 to 1.95)
Previous tumour1.45 (1.17 to 1.79)
Age1.02 (1.01 to 1.03)