Immigrants use health services at a lower rate than people born in the U.S.

Immigrants make up roughly 12 percent of the population in this country, but account for just 8.6 percent of heath care expenditures, according to a report in the International Journal of Health Services. Researchers at Harvard and Tufts universities combed through 18 years of studies on the subject, and found several reasons for the gap. 

Click the above audio player to hear the full story.