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 Cancerjournal_title
Clinical breast cancerauthors
Magario MB,Poli-Neto OB,Tiezzi DG,Angotti Carrara HH,Moreira de Andrade J,Candido Dos Reis FJdoi
10.1016/j.clbc.2019.04.014subject
Has Abstractpub_date
2019-12-01 00:00:00pages
456-459issue
6eissn
1526-8209issn
1938-0666pii
S1526-8209(18)30889-9journal_volume
19pub_type
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