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Breast Cancer Risk ...
Breast Cancer Risk After Recent Childbirth : A Pooled Analysis of 15 Prospective Studies
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Nichols, Hazel B (author)
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Schoemaker, Minouk J (author)
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Cai, Jianwen (author)
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Xu, Jiawei (author)
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Wright, Lauren B (author)
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Brook, Mark N (author)
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Jones, Michael E (author)
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- Adami, Hans-Olov (author)
- Karolinska Institutet
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Baglietto, Laura (author)
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Bertrand, Kimberly A (author)
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Blot, William J (author)
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Boutron-Ruault, Marie-Christine (author)
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Dorronsoro, Miren (author)
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Dossus, Laure (author)
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Eliassen, A Heather (author)
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Giles, Graham G (author)
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Gram, Inger T (author)
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Hankinson, Susan E (author)
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Hoffman-Bolton, Judy (author)
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Kaaks, Rudolf (author)
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Key, Timothy J (author)
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Kitahara, Cari M (author)
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- Larsson, Susanna C. (author)
- Karolinska Institutet,Uppsala universitet,Ortopedi
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Linet, Martha (author)
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Merritt, Melissa A (author)
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Milne, Roger L (author)
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Pala, Valeria (author)
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Palmer, Julie R (author)
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Peeters, Petra H (author)
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Riboli, Elio (author)
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- Sund, Malin (author)
- Umeå universitet,Kirurgi,Sund
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Tamimi, Rulla M (author)
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Tjønneland, Anne (author)
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Trichopoulou, Antonia (author)
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Ursin, Giske (author)
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Vatten, Lars (author)
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Visvanathan, Kala (author)
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- Weiderpass, Elisabete (author)
- Karolinska Institutet
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- Wolk, Alicja (author)
- Karolinska Institutet
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Zheng, Wei (author)
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Weinberg, Clarice R (author)
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Swerdlow, Anthony J (author)
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Sandler, Dale P (author)
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(creator_code:org_t)
- American College of Physicians, 2019
- 2019
- English.
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In: Annals of Internal Medicine. - : American College of Physicians. - 0003-4819 .- 1539-3704. ; 170:1, s. 22-30
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.7...
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https://urn.kb.se/re...
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http://kipublication...
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Abstract
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- Background: Parity is widely recognized as protective for breast cancer, but breast cancer risk may be increased shortly after childbirth. Whether this risk varies with breastfeeding, family history of breast cancer, or specific tumor subtype has rarely been evaluated.Objective: To characterize breast cancer risk in relation to recent childbirth.Design: Pooled analysis of individual-level data from 15 prospective cohort studies.Setting: The international Premenopausal Breast Cancer Collaborative Group.Participants: Women younger than 55 years.Measurements: During 9.6 million person-years of follow-up, 18 826 incident cases of breast cancer were diagnosed. Hazard ratios (HRs) and 95% CIs for breast cancer were calculated using Cox proportional hazards regression.Results: Compared with nulliparous women, parous women had an HR for breast cancer that peaked about 5 years after birth (HR, 1.80 [95% CI, 1.63 to 1.99]) before decreasing to 0.77 (CI, 0.67 to 0.88) after 34 years. The association crossed over from positive to negative about 24 years after birth. The overall pattern was driven by estrogen receptor (ER)-positive breast cancer; no crossover was seen for ER-negative cancer. Increases in breast cancer risk after childbirth were pronounced when combined with a family history of breast cancer and were greater for women who were older at first birth or who had more births. Breastfeeding did not modify overall risk patterns.Limitations: Breast cancer diagnoses during pregnancy were not uniformly distinguishable from early postpartum diagnoses. Data on human epidermal growth factor receptor 2 (HER2) oncogene overexpression were limited.Conclusion: Compared with nulliparous women, parous women have an increased risk for breast cancer for more than 20 years after childbirth. Health care providers should consider recent childbirth a risk factor for breast cancer in young women.Primary Funding Source: The Avon Foundation, the National Institute of Environmental Health Sciences, Breast Cancer Now and the UK National Health Service, and the Institute of Cancer Research.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kirurgi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Surgery (hsv//eng)
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- art (subject category)
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- By the author/editor
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Nichols, Hazel B
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Schoemaker, Mino ...
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Cai, Jianwen
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Xu, Jiawei
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Wright, Lauren B
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Brook, Mark N
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show more...
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Jones, Michael E
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Adami, Hans-Olov
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Baglietto, Laura
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Bertrand, Kimber ...
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Blot, William J
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Boutron-Ruault, ...
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Dorronsoro, Mire ...
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Dossus, Laure
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Eliassen, A Heat ...
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Giles, Graham G
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Gram, Inger T
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Hankinson, Susan ...
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Hoffman-Bolton, ...
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Kaaks, Rudolf
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Key, Timothy J
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Kitahara, Cari M
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Larsson, Susanna ...
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Linet, Martha
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Merritt, Melissa ...
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Milne, Roger L
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Pala, Valeria
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Palmer, Julie R
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Peeters, Petra H
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Riboli, Elio
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Sund, Malin
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Tamimi, Rulla M
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Tjønneland, Anne
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Trichopoulou, An ...
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Ursin, Giske
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Vatten, Lars
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Visvanathan, Kal ...
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Weiderpass, Elis ...
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Wolk, Alicja
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Zheng, Wei
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Weinberg, Claric ...
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Swerdlow, Anthon ...
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Sandler, Dale P
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- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Cancer and Oncol ...
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Surgery
- Articles in the publication
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Annals of Intern ...
- By the university
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Uppsala University
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Umeå University
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Karolinska Institutet