Decomposition of differences between life expectancy losses or gains: relative change and absolute level components. A research note

2023.

Jdanov D., Shkolnikov V., Leon, D. A.

When comparing life expectancy gains or losses between populations separating the effects of relative mortality changes from those due to differences in absolute mortality levels may be of interest. We propose a simple procedure for calculating these Change and Level components of life expectancy losses or gains in a target population compared to a reference population. Two empirical examples illustrate the use of the Change-Level decompositions in an analysis of differences between life expectancy losses due to the COVID-19 pandemic in 2021.

Keywords: life expectancy, продолжительность жизни, декомпозиция, decomposition, COVID-19 pandemic, пандемия COVID-19, temporal changes, inter-population differences, additive contributions, East-West mortality divide, временные изменения, межпопуляционные различия, аддитивные вклады, разрыв в смертности между Востоком и Западом

Publication based on the results of: Expected demographic consequences of the coronavirus pandemic and economic sanctions: monitoring and forecast (2023)