A review of COVID-19 studies globally has revealed reductions in breast cancer screening participation during 2020, with differences between geographic regions and health care settings.
"Previous work on modeled evaluations of breast cancer screening, with a focus on tumor stages and mortality as patient outcomes, suggested that scenarios are likely to differ based on region and the organization of screening services," says first author Reagan Lee, a"For this study, we wanted to collate existing available data from different populations on breast screening participation levels before and after the first COVID-19 wave, when restrictions were put in place in...
For instance, it can be performed according to a documented screening policy, following a defined protocol, system of quality assurance, and so on. Population-based screening is a government program that invites all eligible individuals in defined groups to reach most of the population at higher risk of the disease, according to the national screening policy.
Analyzing these studies, the team observed reported reductions in both screening volume and uptake rates among eight countries: Australia, Brazil, Canada, China, Italy, Mexico, the UK and US. For screening uptake, the team then analyzed a total of nine studies that reported breast cancer screening participation levels, representing more than 46,257,402 people across five countries: Belgium, Brazil, New Zealand, the UK and US. They saw considerable variability in change during 2020, ranging from an increase in uptake of 2–8% in the UK to a reduction in uptake of 43.5% in Brazil. In the US, they identified consistent negative changes in screening uptake.
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