Tumor subtype-specific associations of hormone-related reproductive factors on breast cancer survival.
Tumor subtype-specific associations of hormone-related reproductive factors on breast cancer survival.
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DOI:
10.1371/journal.pone.0123994
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发表时间:
2015
期刊:
影响因子:
3.7
通讯作者:
Kang D
中科院分区:
文献类型:
--
作者:
Song N;Choi JY;Sung H;Jeon S;Chung S;Song M;Park SK;Han W;Lee JW;Kim MK;Yoo KY;Ahn SH;Noh DY;Kang D
It is inconclusive whether reproductive factors, which are known as risk factors of breast cancer, also influence survival. We investigated overall and subtype-specific associations between reproductive factors and breast cancer survival. Among 3,430 incident breast cancer patients who enrolled in the Seoul Breast Cancer Study, 269 patients (7.8%) died and 528 patients (15.4%) recurred. The overall and subtype-specific associations of reproductive factors including age at menarche and menopause, duration of estrogen exposure, menstrual cycle, parity, age at first full-term pregnancy, number of children, age at last birth, time since the last birth, and duration of breastfeeding, on overall and disease-free survival (OS and DFS) were estimated by hazard ratios (HRs) and 95% confidence intervals (95% CIs) using a multivariate Cox proportional hazard model. An older age at menarche (HR for OS=1.10, 95% CI=1.03-1.19), a greater number of children (≥4 vs. 2, HR for DFS=1.58, 95% CI=1.11-2.26), and a shorter time since last birth (<5 vs. ≥20 years, HR for DFS=1.67, 95% CI=1.07-2.62) were associated with worse survival while longer duration of estrogen exposure with better survival (HR for DFS=0.97, 95% CI=0.96-0.99). In the stratified analyses by subtypes, those associations were more pronounced among women with hormone receptor and human epidermal growth factor 2 positive (HR+ HER2+) tumors. It is suggested that reproductive factors, specifically age at menarche, number of children, time since last birth, and duration of estrogen exposure, could influence breast tumor progression, especially in the HR+ HER2+ subtype.
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影响因子:
3.8
作者:
Andersen, S. Warren;Newcomb, P. A.;Hampton, J. M.;Titus-Ernstoff, L.;Egan, K. M.;Trentham-Dietz, A.
通讯作者:
Trentham-Dietz, A.
影响因子:
13.6
作者:
Jaffe, Dena H.;Neumark, Yehuda D.;Manor, Orly
通讯作者:
Manor, Orly
DOI:
10.1038/nrrheum.2014.36
发表时间:
2014-07
期刊:
Nature reviews. Rheumatology
影响因子:
--
作者:
通讯作者:
--
影响因子:
3.8
作者:
Anderson, Kristin N.;Schwab, Richard B.;Martinez, Maria Elena
通讯作者:
Martinez, Maria Elena
影响因子:
7.2
作者:
Brisken, Cathrin;O'Malley, Bert
通讯作者:
O'Malley, Bert