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Weight change in middle adulthood and breast cancer risk in the EPIC-PANACEA study

In English

Författare

  • Marleen J. Emaus
  • Carla H. van Gils
  • Marije F. Bakker
  • Charlotte N. Steins Bisschop
  • Evelyn M. Monninkhof
  • H. B(as) Bueno-de-Mesquita
  • Noemie Travier
  • Tina Landsvig Berentzen
  • Kim Overvad
  • Anne Tjonneland
  • Isabelle Romieu
  • Sabina Rinaldi
  • Veronique Chajes
  • Marc J. Gunter
  • Francoise Clavel-Chapelon
  • Guy Fagherazzi
  • Sylvie Mesrine
  • Jenny Chang-Claude
  • Rudolf Kaaks
  • Heiner Boeing
  • Krasimira Aleksandrova
  • Antonia Trichopoulou
  • Androniki Naska
  • Philippos Orfanos
  • Domenico Palli
  • Claudia Agnoli
  • Rosario Tumino
  • Paolo Vineis
  • Amalia Mattiello
  • Tonje Braaten
  • Kristin Benjaminsen Borch
  • Eiliv Lund
  • Virginia Menendez
  • Maria-Jose Sanchez
  • Carmen Navarro
  • Aurelio Barricarte
  • Pilar Amiano
  • Malin Sund
  • Anne Andersson
  • Signe Borgquist
  • Åsa Olsson
  • Kay-Tee Khaw
  • Nick Wareham
  • Ruth C. Travis
  • Elio Riboli
  • Petra H. M. Peeters
  • Anne M. May
Visa allt

Summary, in English

Long-term weight gain (i.e., weight gain since age 20) has been related to higher risk of postmenopausal breast cancer, but a lower risk of premenopausal breast cancer. The effect of weight change in middle adulthood is unclear. We investigated the association between weight change in middle adulthood (i.e., women aged 40-50 years) and the risk of breast cancer before and after the age of 50. We included female participants of the European Prospective Investigation into Cancer and Nutrition cohort, with information on anthropometric measures at recruitment and after a median follow-up of 4.3 years. Annual weight change was categorized using quintiles taking quintile 2 and 3 as the reference category (-0.44 to 0.36 kg/year). Multivariable Cox proportional hazards regression analysis was used to examine the association. 205,723 women were included and 4,663 incident breast cancer cases were diagnosed during a median follow-up of 7.5 years (from second weight assessment onward). High weight gain (Q5: 0.83-4.98 kg/year) was related to a slightly, but significantly higher breast cancer risk (HRQ5_versus_Q2/3: 1.09, 95% CI: 1.01-1.18). The association was more pronounced for breast cancer diagnosed before or at age 50 (HRQ5_versus_Q2/3: 1.37, 95% CI: 1.02-1.85). Weight loss was not associated with breast cancer risk. There was no evidence for heterogeneity by hormone receptor status. In conclusion, high weight gain in middle adulthood increases the risk of breast cancer. The association seems to be more pronounced for breast cancer diagnosed before or at age 50. Our results illustrate the importance of avoiding weight gain in middle adulthood.

Avdelning/ar

Publiceringsår

2014

Språk

Engelska

Sidor

2887-2899

Publikation/Tidskrift/Serie

International Journal of Cancer

Volym

135

Issue

12

Dokumenttyp

Artikel i tidskrift

Förlag

John Wiley & Sons Inc.

Ämne

  • Cancer and Oncology

Nyckelord

  • breast cancer
  • adult weight gain
  • menopausal status
  • estrogen receptor
  • progesterone receptor

Status

Published

Forskningsgrupp

  • Surgery

ISBN/ISSN/Övrigt

  • ISSN: 0020-7136