Figure 7.

At least four cycles of any anthracycline-based regimen (with mean effect roughly as for standard 4AC) versus no adjuvant chemotherapy: analyses of 10-year breast cancer mortality by age and ER status

RR (and its 95% CI)=event rate ratio, from summed log-rank statistics for all time periods combined. Gain (and its SE)=absolute difference between ends of graphs. ER=oestrogen receptor. Anth=anthracycline. Event rates, %/year, are followed by (first events/woman-years). Error bars show ±1 SE