Mammography Coverage and Tumor Stage in the Opportunistic Screening Context.

Abstract:

INTRODUCTION:The increment of breast cancer screening coverage should lead to an increase in the proportion of early tumors diagnosed and the decrease of the cancer-related mortality. However, the effectiveness of opportunistic mammography screening is not well documented for public health systems in middle-income countries. PATIENTS AND METHODS:We conducted an ecologic study to evaluate the association of mammography coverage with trends in breast cancer stage distribution. We used data from a total of 42,850 breast cancer patients, diagnosed between 2000 and 2016, combined with estimated mammography coverage from 3 surveys (2003, 2008, and 2013). RESULTS:Biannual mammography coverage increased from 62.4% in 2003 to 73.9% in 2013. From 2000 to 2016, the proportion of in situ tumors increased 6.9%, the proportion of localized tumors increased 3.9%, the proportion of regional tumors decreased 6.9% and the frequency of distant tumors decreased 4% (P < .00001). CONCLUSION:Mammography coverage in the context of opportunistic breast cancer screening was associated with the increase of in situ and localized tumors and decrease of regional and distant tumors.

journal_name

Clin Breast Cancer

journal_title

Clinical breast cancer

authors

Magario MB,Poli-Neto OB,Tiezzi DG,Angotti Carrara HH,Moreira de Andrade J,Candido Dos Reis FJ

doi

10.1016/j.clbc.2019.04.014

subject

Has Abstract

pub_date

2019-12-01 00:00:00

pages

456-459

issue

6

eissn

1526-8209

issn

1938-0666

pii

S1526-8209(18)30889-9

journal_volume

19

pub_type

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