A healthy migrant effect? Estimating health outcomes of the undocumented immigrant population in the United States using machine learning

Simon A. Ruhnke, Megan M. Reynolds, Fernando A. Wilson and Jim P. Stimpson

Social Science & Medicine, 2022, vol. 307, issue C

Abstract: This paper investigated whether the commonly observed immigrant health advantage persists among undocumented immigrants in the U.S. and provides nationally representative evidence on the health of this vulnerable population. Data were derived from pooled cross-sections of the National Health Interview Survey (NHIS, 2000–2018). The legal status of foreign-born NHIS respondents is imputed using a non-parametric machine learning model built based on information from the 2004, 2008 and 2014 cohorts of the Survey of Income and Program Participation (SIPP). Multivariate logistic regression analysis indicated that, despite exposure to numerous additional risk factors, the undocumented population experienced a more pronounced Healthy Migrant Effect, with lower odds of reporting fair or poor self-rated health, any physician-diagnosed chronic conditions or being obese. The observed patterns in undocumented health outcomes may be related to the additional challenges and exclusionary policies associated with undocumented migration that could in turn lead to a more pronounced selection of healthy and resilient individuals.

Keywords: Marching learning; Undocumented immigrants; Demography; Obesity; Chronic disease; Immigrant; Population health; United States (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1016/j.socscimed.2022.115177

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