Research Note: A Novel Sullivan Method Projection Framework With Application to Long COVID

Area of Science:

• Epidemiology
• Demography
• Public Health

Background:

• The traditional Sullivan method is widely used for point-in-time estimation of population health impacts.
• Its application is limited by stringent stationarity assumptions that often do not reflect real-world dynamics.
• These limitations restrict the method's resulting estimates and broad applicability.

Purpose of the Study:

• To expand the traditional Sullivan method into a population projection framework.
• To provide new insights into future population health and social trends.
• To enable the estimation of future health conditions under diverse demographic and epidemiologic scenarios.

Main Methods:

• Development of a projection framework for the Sullivan method.
• Application of the expanded method to estimate future population health under varying assumptions.
• Utilizing the case of long COVID to demonstrate the framework's functionality.

Main Results:

• The Sullivan method projection framework yields estimates offering insights into future population health.
• It allows for scenario-based projections, such as the expected life years spent with a condition.
• Demonstrated utility in understanding emergent health challenges like long COVID.

Conclusions:

• The expanded Sullivan method provides a dynamic tool for future health estimation, moving beyond static, present-focused analysis.
• This framework enhances preparedness for various potential future health and social conditions.
• It offers valuable insights for public health planning and policy development.