Breast cancer mortality trends in Peruvian women

J. Smith Torres-Roman, Jose Fabian Martinez-Herrera, Greta Carioli, Jorge Ybaseta-Medina, Bryan Valcarcel, Joseph A. Pinto, Alfredo Aguilar, Katherine A. McGlynn, Carlo La Vecchia

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Background: Breast cancer (BC) is the most common malignancy in Latin American women, but with a wide variability with respect to their mortality. This study aims to estimate the mortality rates from BC in Peruvian women and to assess mortality trends over 15 years. Methods: We calculated BC age-standardized mortality rate (ASMR) per 100,000 women-years using the world standard SEGI population. We estimated joinpoint regression models for BC in Peru and its geographical areas. The spatial analysis was performed using the Moran’s I statistic. Results: In a 15-year period, Peru had a mortality rate of 9.97 per 100,000 women-years. The coastal region had the highest mortality rate (12.15 per 100,000 women-years), followed by the highlands region (4.71 per 100,000 women-years). In 2003, the highest ASMR for BC were in the provinces of Lima, Arequipa, and La Libertad (above 8.0 per 100,000 women-years), whereas in 2017, the highest ASMR were in Tumbes, Callao, and Moquegua (above 13.0 per women-years). The mortality trend for BC has been declining in the coastal region since 2005 (APC = − 1.35, p < 0.05), whereas the highlands region experienced an upward trend throughout the study period (APC = 4.26, p < 0.05). The rainforest region had a stable trend. Spatial analysis showed a Local Indicator of Spatial Association of 0.26 (p < 0.05). Conclusion: We found regional differences in the mortality trends over 15 years. Although the coastal region experienced a downward trend, the highlands had an upward mortality trend in the entire study period. It is necessary to implement tailored public health interventions to reduce BC mortality in Peru.

Original languageEnglish
Article number1173
JournalBMC Cancer
Volume20
Issue number1
DOIs
StatePublished - Dec 2020

Keywords

  • Breast cancer
  • Epidemiology
  • Female
  • Geographic spatial analysis
  • Mortality rate
  • Peru

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