Methodological issues for determining intervals of subsequent cancer screening

Area of Science:

• Public Health
• Epidemiology
• Biostatistics

Background:

• A significant gap exists between national cancer screening guidelines and empirical evidence in Korean adults.
• Accurate estimation of mean sojourn time (MST) is vital for optimizing cancer screening intervals.
• Existing methodologies for MST calculation require adaptation to Korean data privacy regulations.

Purpose of the Study:

• To review and categorize methods for calculating mean sojourn time (MST) for cancer screening.
• To identify applicable MST calculation methods within the constraints of Korean data privacy laws.
• To inform evidence-based cancer screening strategies for the Korean population.

Main Methods:

• Categorization of MST calculation methods based on input parameters.
• Analysis of method applicability considering Korean legal barriers to individual privacy and data confidentiality.
• Identification of methods utilizing transition rates or prevalence/incidence ratios as suitable options.

Main Results:

• Five distinct categories of MST calculation methods were identified.
• Methods relying on transition rates or the prevalence/incidence ratio are deemed feasible under Korean privacy regulations.
• The study provides a framework for selecting appropriate MST estimation techniques.

Conclusions:

• Addressing the evidence-practice gap in Korean cancer screening requires robust MST estimation.
• Transition rate and prevalence/incidence ratio methods offer viable approaches for calculating MST in Korea.
• These findings support the development of more effective, evidence-based cancer screening programs tailored to Korean adults.