chapter  6
What’s been said and what’s been hid
Population health, global consumption and the role of national health data systems
ByClyde Hertzman
Pages 15

It is well known that differences in per capita income among the countries of the world correlate with differences in longevity between them. Early in this century the relationship was simple: life was longer in countries with higher per capita incomes, and it increased in a monotonic, if not wholly linear, fashion. But in recent decades the relationship between health and wealth has become more complex as rich nations have grown richer.