Decomposing the Healthy Immigrant Effect: The Role of GDP of Birth Country in Immigrant Health

Abstract

Drawing on the social-ecological systems perspective of health, this study explores whether the deteriorating trend of immigrant health over time differs depending on immigrants' pre-migration macro-level factors in their birth country. Using the Household, Income, and Labor Dynamics in Australia survey (N = 1,847), we conducted an HLM analysis to examine the association among GDP per capita in the birth country, length of stay, and immigrants' health status post-migration. Support was found for both the negative association between the length of stay and health and the positive association between the GDP of the birth country and health. The negative association between length of stay and health was stronger among immigrants from low GDP countries compared to those from high GDP countries. Our findings suggest the importance of the population-level characteristics of the birth country in understanding healthy immigrant effect post-migration.