https://www.healthaffairs.org/doi/full/10.1377/hlthaff.22.3.89, May/June 2003
This chart collection takes a look at how spending on healthcare in the United States compares to other OECD countries that are similarly large and wealthy (based on GDP and GDP per capita). The analysis looks at 2017 health data from the OECD Health Statistics database and the National Health Expenditure Accounts.
https://en.wikipedia.org/wiki/List_of_countries_by_total_health_expenditure_per_capita
In 2018, the total expenditure on health care in China reached over 5.9 trillion yuan. That figure included government spending, collective spending, and private out-of-pocket spending on health care. https://www.statista.com/statistics/279400/health-expenditures-in-china/
Estimated median age of Chinese population 38.4 years: https://www.statista.com/topics/6000/aging-population-in-china/