Figure 2

Relative risk ratios (RRR) for women over 65 years old compared with women under 65 years old of being treated Over (a) or Under (b) St Gallen. In (a), RRR > 1 indicates that women over 65 were more likely to be treated Over St Gallen than women under 65 years old, while in (b), RRR > 1 indicates that women over 65 were more likely to be treated Under St Gallen than women under 65. Results on HER2 + tumours treated Over St Gallen are not shown as analysis did not converge.