000288522 001__ 288522 000288522 005__ 20250824022513.0 000288522 0247_ $$2doi$$a10.1016/j.canep.2024.102545 000288522 0247_ $$2pmid$$apmid:38377945 000288522 0247_ $$2ISSN$$a1877-7821 000288522 0247_ $$2ISSN$$a1877-783X 000288522 0247_ $$2altmetric$$aaltmetric:160032298 000288522 037__ $$aDKFZ-2024-00392 000288522 041__ $$aEnglish 000288522 082__ $$a610 000288522 1001_ $$aVon Holle, Ann$$b0 000288522 245__ $$aBMI and breast cancer risk around age at menopause. 000288522 260__ $$aAmsterdam [u.a.]$$bElsevier$$c2024 000288522 3367_ $$2DRIVER$$aarticle 000288522 3367_ $$2DataCite$$aOutput Types/Journal article 000288522 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1708604134_8524 000288522 3367_ $$2BibTeX$$aARTICLE 000288522 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000288522 3367_ $$00$$2EndNote$$aJournal Article 000288522 520__ $$aA high body mass index (BMI, kg/m2) is associated with decreased risk of breast cancer before menopause, but increased risk after menopause. Exactly when this reversal occurs in relation to menopause is unclear. Locating that change point could provide insight into the role of adiposity in breast cancer etiology.We examined the association between BMI and breast cancer risk in the Premenopausal Breast Cancer Collaborative Group, from age 45 up to breast cancer diagnosis, loss to follow-up, death, or age 55, whichever came first. Analyses included 609,880 women in 16 prospective studies, including 9956 who developed breast cancer before age 55. We fitted three BMI hazard ratio (HR) models over age-time: constant, linear, or nonlinear (via splines), applying piecewise exponential additive mixed models, with age as the primary time scale. We divided person-time into four strata: premenopause; postmenopause due to natural menopause; postmenopause because of interventional loss of ovarian function (bilateral oophorectomy (BO) or chemotherapy); postmenopause due to hysterectomy without BO. Sensitivity analyses included stratifying by BMI in young adulthood, or excluding women using menopausal hormone therapy.The constant BMI HR model provided the best fit for all four menopausal status groups. Under this model, the estimated association between a five-unit increment in BMI and breast cancer risk was HR=0.87 (95% CI: 0.85, 0.89) before menopause, HR=1.00 (95% CI: 0.96, 1.04) after natural menopause, HR=0.99 (95% CI: 0.93, 1.05) after interventional loss of ovarian function, and HR=0.88 (95% CI: 0.76, 1.02) after hysterectomy without BO.The BMI breast cancer HRs remained less than or near one during the 45-55 year age range indicating that the transition to a positive association between BMI and risk occurs after age 55. 000288522 536__ $$0G:(DE-HGF)POF4-313$$a313 - Krebsrisikofaktoren und Prävention (POF4-313)$$cPOF4-313$$fPOF IV$$x0 000288522 588__ $$aDataset connected to CrossRef, PubMed, , Journals: inrepo02.dkfz.de 000288522 650_7 $$2Other$$aBody mass index 000288522 650_7 $$2Other$$aBreast neoplasms 000288522 650_7 $$2Other$$aMiddle aged 000288522 650_7 $$2Other$$aPostmenopause 000288522 650_7 $$2Other$$aPremenopause 000288522 7001_ $$aAdami, Hans-Olov$$b1 000288522 7001_ $$aBaglietto, Laura$$b2 000288522 7001_ $$aBerrington, Amy$$b3 000288522 7001_ $$aBertrand, Kimberly A$$b4 000288522 7001_ $$aBlot, William$$b5 000288522 7001_ $$aChen, Yu$$b6 000288522 7001_ $$aDeHart, Jessica Clague$$b7 000288522 7001_ $$aDossus, Laure$$b8 000288522 7001_ $$aEliassen, A Heather$$b9 000288522 7001_ $$aFournier, Agnes$$b10 000288522 7001_ $$aGarcia-Closas, Montse$$b11 000288522 7001_ $$aGiles, Graham$$b12 000288522 7001_ $$aGuevara, Marcela$$b13 000288522 7001_ $$aHankinson, Susan E$$b14 000288522 7001_ $$aHeath, Alicia$$b15 000288522 7001_ $$aJones, Michael E$$b16 000288522 7001_ $$aJoshu, Corinne E$$b17 000288522 7001_ $$0P:(DE-He78)4b2dc91c9d1ac33a1c0e0777d0c1697a$$aKaaks, Rudolf$$b18$$udkfz 000288522 7001_ $$aKirsh, Victoria A$$b19 000288522 7001_ $$aKitahara, Cari M$$b20 000288522 7001_ $$aKoh, Woon-Puay$$b21 000288522 7001_ $$aLinet, Martha S$$b22 000288522 7001_ $$aPark, Hannah Lui$$b23 000288522 7001_ $$aMasala, Giovanna$$b24 000288522 7001_ $$aMellemkjaer, Lene$$b25 000288522 7001_ $$aMilne, Roger L$$b26 000288522 7001_ $$aO'Brien, Katie M$$b27 000288522 7001_ $$aPalmer, Julie R$$b28 000288522 7001_ $$aRiboli, Elio$$b29 000288522 7001_ $$aRohan, Thomas E$$b30 000288522 7001_ $$aShrubsole, Martha J$$b31 000288522 7001_ $$aSund, Malin$$b32 000288522 7001_ $$aTamimi, Rulla$$b33 000288522 7001_ $$aTin Tin, Sandar$$b34 000288522 7001_ $$aVisvanathan, Kala$$b35 000288522 7001_ $$aVermeulen, Roel Ch$$b36 000288522 7001_ $$aWeiderpass, Elisabete$$b37 000288522 7001_ $$aWillett, Walter C$$b38 000288522 7001_ $$aYuan, Jian-Min$$b39 000288522 7001_ $$aZeleniuch-Jacquotte, Anne$$b40 000288522 7001_ $$aNichols, Hazel B$$b41 000288522 7001_ $$aSandler, Dale P$$b42 000288522 7001_ $$aSwerdlow, Anthony J$$b43 000288522 7001_ $$aSchoemaker, Minouk J$$b44 000288522 7001_ $$aWeinberg, Clarice R$$b45 000288522 773__ $$0PERI:(DE-600)2498032-8$$a10.1016/j.canep.2024.102545$$gVol. 89, p. 102545 -$$p102545$$tCancer epidemiology$$v89$$x1877-7821$$y2024 000288522 8564_ $$uhttps://inrepo02.dkfz.de/record/288522/files/1-s2.0-S1877782124000249-main.pdf 000288522 8564_ $$uhttps://inrepo02.dkfz.de/record/288522/files/1-s2.0-S1877782124000249-main.pdf?subformat=pdfa$$xpdfa 000288522 909CO $$ooai:inrepo02.dkfz.de:288522$$pVDB 000288522 9101_ $$0I:(DE-588b)2036810-0$$6P:(DE-He78)4b2dc91c9d1ac33a1c0e0777d0c1697a$$aDeutsches Krebsforschungszentrum$$b18$$kDKFZ 000288522 9131_ $$0G:(DE-HGF)POF4-313$$1G:(DE-HGF)POF4-310$$2G:(DE-HGF)POF4-300$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$aDE-HGF$$bGesundheit$$lKrebsforschung$$vKrebsrisikofaktoren und Prävention$$x0 000288522 9141_ $$y2024 000288522 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline$$d2023-08-22 000288522 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bClarivate Analytics Master Journal List$$d2023-08-22 000288522 915__ $$0StatID:(DE-HGF)1050$$2StatID$$aDBCoverage$$bBIOSIS Previews$$d2023-08-22 000288522 915__ $$0StatID:(DE-HGF)0113$$2StatID$$aWoS$$bScience Citation Index Expanded$$d2023-08-22 000288522 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection$$d2023-08-22 000288522 915__ $$0StatID:(DE-HGF)1190$$2StatID$$aDBCoverage$$bBiological Abstracts$$d2023-08-22 000288522 915__ $$0StatID:(DE-HGF)0160$$2StatID$$aDBCoverage$$bEssential Science Indicators$$d2023-08-22 000288522 915__ $$0StatID:(DE-HGF)1110$$2StatID$$aDBCoverage$$bCurrent Contents - 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