RESUMEN
Introduction: The COVID-19 pandemic has caused major changes to healthcare services, especially those related to early detection and screening practices like breast cancer. In Puerto Rico, breast cancer is the main cause of death, representing 18.9% of cancer deaths in women, making early detection even more important to prevent morbidity and mortality. This study aims to describe the impact of COVID-19 on breast cancer screening and assess differences in health utilization by age group and health regions in Puerto Rico. Method(s): This study used data on breast cancer screening medical claims from Puerto Rico Track, a project in collaboration with the Puerto Rico Public Health System and the Puerto Rico Institute of Statistics that aims to assess health access and utilization patterns in Puerto Rico. Claims including unilateral and bilateral mammography, sonommamography, and MRI were analyzed. Descriptive statistics and percentual changes between the COVID-19 baseline year (2016) compared with 2020 and 2021 were performed (overall, by age-group and health region). Result(s): A total of 193,793 screening tests were performed in 2016, compared to 66,463 in 2020, and 89,322 in 2021. Overall, a third of the medical claims for breast cancer screening (33.2%) were in the age group of 51-60 years. An overall decreasing percentual change was observed comparing 2016 vs. 2020 (65.7%), where the age group with the broadest gap reduction were among women 41-50 years old (68.2%). When comparing medical claims of 2016 (193,750) versus 2021 (89,320) (pre and post pandemic), an important decreasing change (53.9%) was observed. The age group with the highest decrease comparing 2016 to 2021 was the 41-50 years one (68.2%). The Western region of Mayaguez/Aguadilla had the highest decreasing percentual change, with a reduction of 73.6% in 2020 compared to 2016, and 62.6% when compared 2021 with 2016. Conclusion(s): Breast cancer screening was notably affected by the COVID-19 pandemic in Puerto Rico. A pattern of decreasing breast cancer screening was observed by health regions and by age. These efforts provide evidence of the need of tailored evidence-based interventions to increase breast cancer screening in the island.