ObjectiveTo estimate the coverage of opportunistic mammography screening performed via
the Brazilian Sistema Único de Saúde (SUS, Unified Health Care
System), at the state and regional level, in 2013.Materials and MethodsThis was an ecological study in which coverage was estimated by determining
the ratio between the number of mammograms performed and the expected number
of mammograms among the population of females between 50 and 69 years of
age. The number of mammograms performed in the target population was
obtained from the Outpatient Database of the Information Technology
Department of the SUS. To calculate the expected number of mammograms, we
considered 58.9% of the target population, the proportion that would be
expected on the basis of the recommendations of the Brazilian National
Cancer Institute.ResultsIn 2013, the estimated national coverage of mammography screening via the SUS
was 24.8%. The mammography rate ranged from 12.0% in the northern region to
31.3% in the southern region. When stratified by state, coverage was lowest
in the state of Pará and highest in the state of Santa Catarina (7.5%
and 35.7%, respectively).ConclusionThe coverage of mammography screening performed via the SUS is low. There is
a significant disparity among the Brazilian states (including the Federal
District of Brasília) and among regions, being higher in the
south/southeast and lower in the north/northeast.