Explaining variations in breast cancer screening across European countries

Area of Science:

• Public Health
• Health Services Research
• Epidemiology

Background:

• Mammography screening rates vary significantly across European countries for women aged 50-69.
• Understanding the drivers of these disparities is crucial for improving cancer prevention strategies.

Purpose of the Study:

• To investigate the statistical causes of country-level differences in mammography screening uptake.
• To determine the relative importance of individual versus institutional factors in explaining these variations.

Main Methods:

• Utilized individual-level data from the Survey of Health, Ageing and Retirement in Europe (SHARE) waves 1-3 (2004-2009).
• Employed multilevel statistical models incorporating regional and country-level data on institutional factors.
• Analyzed the contribution of individual (age, education, health status) and institutional (organized screening programs) factors.

Main Results:

• Individual factors explained minimal variation in mammography screening rates across countries.
• The availability of organized screening programs substantially reduced cross-country differences, explaining approximately 40% of the variation.
• Institutional factors appear to influence women's perception of mammogram necessity.

Conclusions:

• The presence of organized mammography screening programs is a key determinant of screening uptake differences in Europe.
• Patient understanding of breast cancer prevention benefits is influenced by the availability of structured screening initiatives.
• Policy interventions should focus on establishing and strengthening organized screening programs to enhance equitable access and utilization.