2025-11-07 ブラウン大学
<関連情報>
- https://www.brown.edu/news/2025-11-07/dying-medicare
- https://jamanetwork.com/journals/jama-health-forum/fullarticle/2840803
米国各州における早期死亡率と未実現メディケア給付金の人種格差 Racial Disparities in Premature Mortality and Unrealized Medicare Benefits Across US States
Irene Papanicolas, PhD; Maecey Niksch, BA; Jinru Wei, MS;et al
JAMA Health Forum Published:November 7, 2025
DOI:10.1001/jamahealthforum.2025.4916

Introduction
Medicare is often regarded as a universal benefit for most US citizens and legal permanent residents. The program is financed through payroll tax contributions during individuals’ working lives with the expectation of coverage at age 65 years for most people.1 However, those who die prematurely are unable to realize the benefits they helped fund—raising equity concerns for populations with lower life expectancies.
In 2022, the mean life expectancy in the US was 77.5 years, down from 78.9 years in 2014,2 partly due to rising mortality among working-age adults and widening disparities across racial and socioeconomic groups.3-5 As health declines begin earlier6—especially for Black individuals—a growing number may not reach Medicare eligibility. This inequity in unrealized Medicare benefits underscores the need to understand how premature mortality before age 65 years has varied over time and by race.


