Healthcare Expenditure and Demographic Trends: A Comparative Analysis of Selected Countries (2000-2024)

This research journal investigates the interplay between healthcare expenditure, life expectancy, and demographic characteristics across selected countries from 2000 to 2024. Utilizing quantitative analysis, the study examines healthcare spending as a percentage of GDP, average life expectancy, and the age distribution of populations. For instance, the USA's healthcare expenditure is projected to reach 19.2% of GDP by 2024, with an average life expectancy of 81.9 years. In contrast, Bangladesh's healthcare expenditure is anticipated to be 7.0% of GDP, with a life expectancy of 70.0 years. The findings reveal critical insights regarding the effectiveness and sustainability of healthcare systems, emphasizing the need for policy interventions that prioritize healthcare funding, especially in aging populations where the percentage of individuals aged 65 and older is expected to rise significantly—projected at 16.0% for the USA and 7.0% for Bangladesh in 2024.本研究针对2000年至2024年间的若干选定国家，剖析医疗保健支出、人均预期寿命与人口统计特征三者间的交互影响。本研究采用定量分析方法，考察以国内生产总值（GDP）占比衡量的医疗开支、人均预期寿命以及人口年龄分布情况。例如，预计至2024年，美国医疗保健支出将达到GDP的19.2%，人均预期寿命为81.9岁；与之形成对比的是，孟加拉国的医疗保健支出预计占GDP的7.0%，人均预期寿命为70.0岁。本研究结果揭示了医疗保健系统的有效性与可持续性相关的关键启示，强调了需出台政策干预以优先保障医疗筹资的必要性，尤其在人口老龄化背景下：65岁及以上人口占比预计将显著提升——预计2024年美国该占比将达16.0%，孟加拉国则为7.0%。