Study shows Migrants to Affluent Nations are Healthier Than Natives

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International migrants who relocate to high-income countries to work, study or join family members are less likely to die prematurely than people born in their new homelands, a research review suggests.

For the analysis, researchers examined data from 96 studies with mortality estimates for more than 15.2 million international migrants in 92 countries.

Overall, migrants were about 30 percent less likely to experience premature death from all causes than other people in the general populations of the countries where they moved, the analysis found.

"Migrants to rich countries have lower rates of death due to most major disease areas compared to the general population," said lead study author Robert Aldridge of University College London in the U.K.

"We know from U.N. data that the majority of migrants to these rich countries tend to be moving for work or study," Aldridge said by email.

About 258 million people worldwide reside outside their countries of birth, accounting for more than 3 percent of the world's population, researchers note in The Lancet.

In many high-income nations, public perception that migrants place an undue burden on society in general and on health resources in particular has led to restrictions on migrants' access to care, the authors write.

But the current analysis suggests that, if anything, migrants may use fewer health resources than native-born residents, Aldridge said by email.