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Global life expectancy rises, but people live sicker for longer

28 August 2015, 11:08

London - People around the world are living longer, but many are also living sicker lives for longer, according to a study of all major diseases and injuries in 188 countries.

General health has improved worldwide, thanks to significant progress against infectious diseases such as HIV/AIDS and malaria in the past decade and gains in fighting maternal and child illnesses.

But healthy life expectancy has not increased as much, so people are living more years with illness and disability, according to the analysis, published in The Lancet journal.

"The world has made great progress in health, but now the challenge is to invest in finding more effective ways of preventing or treating the major causes of illness and disability," said Theo Vos, a professor at the Institute of Health Metrics and Evaluation at the University of Washington who led the analysis.

The study's main findings were that global life expectancy at birth for both sexes rose by 6.2 years - from 65.3 in 1990 to 71.5 in 2013. Healthy life expectancy at birth rose by 5.4 years - from 56.9 in 1990 to 62.3 in 2013.

Healthy life expectancy takes into account both mortality and the impact of non-fatal conditions and chronic illnesses like heart and lung diseases, diabetes and serious injuries. Those detract from quality of life and impose heavy cost and resources burdens.

For most of the 188 countries studied, changes in healthy life expectancy between 1990 and 2013 were "significant and positive", the researchers said. But in many - among them Belize, Botswana and Syria - healthy life expectancy in 2013 was not much higher than in 1990.

And in some, including South Africa, Paraguay, and Belarus, healthy life expectancy has dropped. In Lesotho and Swaziland, people born in 2013 could expect to live some 10 fewer healthy years than people born there 20 years earlier.

The study also found stark differences between countries with the highest and lowest healthy life expectancies, and in the rates and direction of change.

Nicaraguans and Cambodians have seen dramatic increases since 1990, of 14.7 and 13.9 years respectively. People in Botswana and Belize, however, saw declines of two and 1.3 years respectively.

In 2013, Lesotho had the world's lowest healthy life expectancy, at 42 years. Japan had the highest, at 73.4 years.

- Reuters


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