GDP per capita and other "per capita" metrics are also unreliable metrics for household income, as they suffer from the same issue as averages. This is a common

GDP per capita and other "per capita" metrics are also unreliable metrics for household income, as they suffer from the same issue as averages. This is a common trap that is done in population statistics, as mean and averages are always easier to calculate and reduce the complexity of the calculations. Large wealth inequality makes GDP per capita and average household spending not representative of a real-world median household. If healthcare costs have outpaced median income but kept up with mean income, that is a MASSIVE societal issue. Most of the plots and arguments in the article overlook this, so I don't trust the arguments much. However, it is still interesting how strong the correlations are. It gives some interesting insights into what goes into the cost of running hospitals, I suppose.