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| Home > Publications database > Parity, breastfeeding, and breast cancer risk by hormone receptor status and molecular phenotype: results from the Nurses' Health Studies. > print |
| 001 | 143223 | ||
| 005 | 20240229112545.0 | ||
| 024 | 7 | _ | |a 10.1186/s13058-019-1119-y |2 doi |
| 024 | 7 | _ | |a pmid:30867002 |2 pmid |
| 024 | 7 | _ | |a pmc:PMC6416887 |2 pmc |
| 024 | 7 | _ | |a 1465-5411 |2 ISSN |
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| 041 | _ | _ | |a eng |
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| 100 | 1 | _ | |a Turzanski-Fortner, Renée |0 P:(DE-He78)74a6af8347ec5cbd4b77e562e10ca1f2 |b 0 |e First author |u dkfz |
| 245 | _ | _ | |a Parity, breastfeeding, and breast cancer risk by hormone receptor status and molecular phenotype: results from the Nurses' Health Studies. |
| 260 | _ | _ | |a London |c 2019 |b BioMed Central |
| 336 | 7 | _ | |a article |2 DRIVER |
| 336 | 7 | _ | |a Output Types/Journal article |2 DataCite |
| 336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1554211938_30178 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 336 | 7 | _ | |a JOURNAL_ARTICLE |2 ORCID |
| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a Epidemiologic data suggest that parity increases risk of hormone receptor-negative breast cancer and that breastfeeding attenuates this association. Prospective data, particularly on the joint effects of higher parity and breastfeeding, are limited.We investigated parity, breastfeeding, and breast cancer risk by hormone-receptor (estrogen (ER) and progesterone receptor (PR)) and molecular subtypes (luminal A, luminal B, HER2-enriched, and basal-like) in the Nurses' Health Study (NHS; 1976-2012) and NHSII (1989-2013). A total of 12,452 (ER+ n = 8235; ER- n = 1978) breast cancers were diagnosed among 199,514 women. We used Cox proportional hazards models, adjusted for breast cancer risk factors, to calculate hazard ratios (HR) and 95% confidence intervals (CI).Parous women had lower risk of ER+ breast cancer (vs. nulliparous, HR = 0.82 [0.77-0.88]); no association was observed for ER- disease (0.98 [0.84-1.13]; Phet = 0.03). Among parous women, breastfeeding was associated with lower risk of ER- (vs. never 0.82 [0.74-0.91]), but not ER+, disease (0.99 [0.94-1.05]; Phet < 0.001). Compared to nulliparous women, higher parity was inversely associated with luminal B breast cancer regardless of breastfeeding (≥ 3 children: ever breastfed, 0.78 [0.62-0.98]; never breastfed, 0.76 [0.58-1.00]) and luminal A disease only among women who had breastfed (≥ 3 children, 0.84 [0.71-0.99]). Basal-like breast cancer risk was suggestively higher among women with higher parity who never breastfed; associations were null among those who ever breastfed.This study provides evidence that breastfeeding is inversely associated with hormone receptor-negative breast cancers, representing an accessible and cost-effective risk-reduction strategy for aggressive disease subtypes. |
| 536 | _ | _ | |a 313 - Cancer risk factors and prevention (POF3-313) |0 G:(DE-HGF)POF3-313 |c POF3-313 |f POF III |x 0 |
| 588 | _ | _ | |a Dataset connected to CrossRef, PubMed, |
| 700 | 1 | _ | |a Sisti, Julia |b 1 |
| 700 | 1 | _ | |a Chai, Boyang |b 2 |
| 700 | 1 | _ | |a Collins, Laura C |b 3 |
| 700 | 1 | _ | |a Rosner, Bernard |b 4 |
| 700 | 1 | _ | |a Hankinson, Susan E |b 5 |
| 700 | 1 | _ | |a Tamimi, Rulla M |b 6 |
| 700 | 1 | _ | |a Eliassen, A Heather |b 7 |
| 773 | _ | _ | |a 10.1186/s13058-019-1119-y |g Vol. 21, no. 1, p. 40 |0 PERI:(DE-600)2041618-0 |n 1 |p 40 |t Breast cancer research |v 21 |y 2019 |x 1465-542X |
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| 914 | 1 | _ | |y 2019 |
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| 915 | _ | _ | |a IF >= 5 |0 StatID:(DE-HGF)9905 |2 StatID |b BREAST CANCER RES : 2017 |
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