Collating the work of 486 authors in 50 countries over 5 years, the study is the largest-ever systematic attempt to describe the global distribution and causes of diseases, injuries, and health risk factors. A similar, but smaller, project was completed in 1990.
The new study showed that, globally, female life expectancy at birth increased from 61.2 years in 1970 to 73.3 years in 2010, while male life expectancy rose from 56.4 years to 67.5 years over the same time period. The data also show that huge discrepancies in life expectancy remain between rich and poor countries, as was seen in the 1990 study. For example, deaths of children under 5 years decreased by 60 percent in the past 40 years, but in sub-Saharan Africa, the rate has increased by 45 percent.
Today, diseases such as cancer and heart disease have become the dominant causes of death and disability worldwide. Heart disease and stroke caused one in four deaths in 2010, accounting for almost 13 million people worldwide, while that same year, cancer killed 8 million people—an increase of 38 percent since 1990.
And the burden of HIV/Aids remains high, accounting for the deaths of 1.5 million people across the world in 2010—up from 300,000 in 1990.
(Hat tip to The Guardian)