From a press release:
No matter where they came from, people born outside the United States but working here are much less likely to receive Social Security Disability Insurance benefits than those born in the U.S. or its territories. Foreign-born adults, according to a study published in the December issue of the journal Demography, are less likely to report health-related impediments to working, to be covered by work-disability insurance, and to apply for disability benefits.
The researchers used data from the American Community Survey (ACS) to determine the prevalence of work disability and records from the Social Security Disability Insurance (SSDI) program to determine the incidence. They found that over the ten-year period from 2001 to 2010, about 6.56 people per thousand born in the U.S. received benefits through the SSDI program.
Foreign-born individuals make up about 13 percent of the U.S. population, and a somewhat larger proportion (16.7 percent) of the U.S. labor force. They are, however, significantly less likely to report work disability and to receive work disability benefits. The researchers found that only 4.16 per thousand foreign-born men and 4.36 per thousand foreign-born women were approved for benefits. ...I don't think this means much. Many of the native born Americans who end up receiving Social Security disability benefits have health problems that were coming on for a long time, sometimes since birth. People who emigrate are unlikely to have serious, chronic health problems at the time they emigrate. If they had been sick, they probably would have stayed in their native countries. The addition of healthy productive workers is one of the many ways that America benefits from immigration.