Effects of chemotherapy and hormonal therapy for early breast cancer on recurrence and 15-year survival:: an overview of the randomised trials
Effects of chemotherapy and hormonal therapy for early breast cancer on recurrence and 15-year survival:: an overview of the randomised trials
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DOI:
10.1016/s0140-6736(05)66544-0
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发表时间:
2005-05-14
期刊:
影响因子:
168.9
通讯作者:
Caffier, H
中科院分区:
文献类型:
--
作者:
Abe, O;Abe, R;Caffier, H
Background in early breast cancer, variations in local treatment that substantially affect the risk of locoregional recurrence could also affect long-term breast cancer mortality. To examine this relationship, collaborative meta-analyses were undertaken, based on individual patient data, of the relevant randomised trials that began by 1995.Methods Information was available on 42 000 women in 78 randomised treatment comparisons (radiotherapy vs no radiotherapy, 23 500; more vs less surgery, 9300; more surgery vs radiotherapy, 9300). 24 types of local treatment comparison were identified. To help relate the effect on local (ie, locoregional) recurrence to that on breast cancer mortality, these were grouped according to whether or not the 5-year local recurrence risk exceeded 10% (10%, 25 000 women).Findings About three-quarters of the eventual local recurrence risk occurred during the first 5 years. In the comparisons that involved little (10%) differences, however, 5-year local recurrence risks were 7% active versus 26% control (absolute reduction 19%), and 15-year breast cancer mortality risks were 44.6% versus 49.5% (absolute reduction 5.0%,SE 0.8, 2p