 The Survey of Income and Program Participation (SIPP) indicated that in 2002, 13.4% of native-born citizens were not insured compared to 43.8% of foreign-born adults.Reasons for lack of insurance vary, but the findings of a 2005 study suggest that personal characteristics as well as the types of jobs immigrants have factor largely into the lack of coverage.There is a high concentration of immigrants in low-paying jobs and other jobs that do not offer health insurance.