highly significantp<0·0001
250 breast cancers have been reported (85 anastrozole [4·4%] vs 165 placebo [8·5%]; table 1 ), with a highly significant 49% reduction for all breast cancer with anastrozole (HR 0·51, 95% CI 0·39–0·66, p<0·0001).
250 breast cancers have been reported (85 anastrozole [4·4%] vs 165 placebo [8·5%]; table 1 ), with a highly significant 49% reduction for all breast cancer with anastrozole (HR 0·51, 95% CI 0·39–0·66, p<0·0001).