domingo, 7 de junio de 2015

Mammography Rates for Breast Cancer Screening: A Comparison of First Nations Women and All Other Women Living in Manitoba, Canada, 1999-2008

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Mammography Rates for Breast Cancer Screening: A Comparison of First Nations Women and All Other Women Living in Manitoba, Canada, 1999-2008





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Mammography Rates for Breast Cancer Screening: A Comparison of First Nations Women and All Other Women Living in Manitoba, Canada, 1999-2008

Alain A. Demers, PhD; Kathleen M. Decker, PhD; Erich V. Kliewer, PhD; Grace Musto, BSc; Emma Shu, MSc; Natalie Biswanger, BSc; Katherine Fradette, MPH; Brenda Elias, PhD; Jane Griffith, PhD; Donna Turner, PhD

Suggested citation for this article: Demers AA, Decker KM, Kliewer EV, Musto G, Shu E, Biswanger N, et al. Mammography Rates for Breast Cancer Screening: A Comparison of First Nations Women and All Other Women Living in Manitoba, Canada, 1999–2008. Prev Chronic Dis 2015;12:140571. DOI: http://dx.doi.org/10.5888/pcd12.140571.
PEER REVIEWED

Abstract

Introduction
First Nations (FN) women historically have low rates of preventive care, including breast cancer screening. We describe the frequency of breast cancer screening among FN women living in Manitoba and all other Manitoba (AOM) women after the introduction of a provincial, organized breast screening program and explore how age, area of residence, and time period influenced breast cancer screening participation.
Methods
The federal Indian Registry was linked to 2 population-based, provincial data sources. A negative binomial model was used to compare breast cancer screening for FN women with screening for AOM women.
Results
From 1999 through 2008, 37% of FN and 59% of AOM women had a mammogram in the previous 2 years. Regardless of area of residence, FN women were less likely to have had a mammogram than AOM women (relative rate [RR] = 0.69 in the north, RR = 0.55 in the rural south, and RR = 0.53 in urban areas).
Conclusions
FN women living in Manitoba had lower mammography rates than AOM women. To ensure equity for all Manitoba women, strategies that encourage FN women to participate in breast cancer screening should be promoted.

Acknowledgments

We gratefully acknowledge the statistical support of Dr Rashid Ahmed and Mr Pascal Lambert. We also thank the Health Information and Research Committee, Manitoba Health, and the Health Information and Research Committee of the Assembly of Manitoba Chiefs. This work was supported by the Canadian Institute of Health Research (CIHR-AQC 83508). The authors of this study declare that there are no conflicts of interest that could bias the results of this study. The results and conclusions presented are those of the authors. No official endorsement by Manitoba Health is intended or should be inferred.
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Author Information

Corresponding Author: Donna Turner, PhD, Epidemiology and Cancer Registry, CancerCare Manitoba, 675 McDermot, Winnipeg, Manitoba R3E 0V9. Telephone: 204-787-2573. Email:donna.turner@cancercare.mb.ca.
Author Affiliations: Alain A. Demers, Jane Griffith, Epidemiology and Cancer Registry, CancerCare Manitoba, Winnipeg, Manitoba, and Department of Community Health Sciences, University of Manitoba, Winnipeg, Manitoba; Kathleen M. Decker, Department of Community Health Sciences, University of Manitoba, Winnipeg, Manitoba, and Screening Programs, CancerCare Manitoba, Winnipeg, Manitoba; Erich V. Kliewer, Epidemiology and Cancer Registry, CancerCare Manitoba, Winnipeg, Manitoba, Department of Community Health Sciences, University of Manitoba, Winnipeg, Manitoba, and Cancer Control Research, British Columbia Cancer Agency, Vancouver, British Columbia; Grace Musto, Emma Shu, Katherine Fradette, Epidemiology and Cancer Registry, CancerCare Manitoba, Winnipeg, Manitoba; Natalie Biswanger, Screening Programs, CancerCare Manitoba, Winnipeg, Manitoba; Brenda Elias, Department of Community Health Sciences, University of Manitoba, Winnipeg, Manitoba.
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