Cancer Causes & Control

, Volume 21, Issue 4, pp 577–586

Moderate physical activity and breast cancer risk: the effect of menopausal status

  • Angélica Ángeles-Llerenas
  • Carolina Ortega-Olvera
  • Edelmiro Pérez-Rodríguez
  • Jesús Pablo Esparza-Cano
  • Eduardo Lazcano-Ponce
  • Isabelle Romieu
  • Gabriela Torres-Mejía
Original paper

DOI: 10.1007/s10552-009-9487-8

Cite this article as:
Ángeles-Llerenas, A., Ortega-Olvera, C., Pérez-Rodríguez, E. et al. Cancer Causes Control (2010) 21: 577. doi:10.1007/s10552-009-9487-8

Abstract

Introduction

It has been suggested that both moderate- and vigorous-intensity physical activity reduces the risk of breast cancer. However, the effect of moderate-intensity physical activity on breast cancer risk has not been consistently evaluated by menopausal status and has not been evaluated in Mexican women.

Objective

To evaluate the effect of moderate-intensity physical activity (h/week and MET-h/week) on the risk of breast cancer by menopausal status in Mexican women.

Methods

A population-based case–control study was conducted in Mexico. One thousand incident cases and 1,074 matched controls to cases by 5 years of age, site and health institution participated in the study. Women provided information on health, diet and physical activity by means of an in-person interview. Anthropometric measurements and blood samples were obtained from all women. A conditional logistic regression model was used to assess this association.

Results

Participating in moderate-intensity physical activity decreased the risk of BC in both pre- and postmenopausal women (OR = 0.96; 95% CI 0.92.–0.99; OR = 0.90; 95% CI 0.86–0.93, respectively) for every 3 h per week of moderate-intensity physical activity. There was a statistically significant modification effect by menopausal status (p = 0.009).

Conclusions

Strategies need to be identified that will engage women in physical activity programs.

Keywords

Physical activity Mexican women Breast cancer 

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • Angélica Ángeles-Llerenas
    • 1
  • Carolina Ortega-Olvera
    • 1
  • Edelmiro Pérez-Rodríguez
    • 2
  • Jesús Pablo Esparza-Cano
    • 3
  • Eduardo Lazcano-Ponce
    • 1
  • Isabelle Romieu
    • 1
    • 4
  • Gabriela Torres-Mejía
    • 1
  1. 1.Instituto Nacional de Salud PúblicaCentro de Investigaciones en Salud PoblacionalCuernavacaMéxico
  2. 2.Hospital UniversitarioMonterreyMéxico
  3. 3.Hospital No. 23 de GinecologíaIMSSMonterreyMéxico
  4. 4.INSERM/ERI 20VillejuifFrance

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