Journal of Exposure Science and Environmental Epidemiology
Volume 29, Issue 1, 2019, Pages 71-82

Phthalate metabolite exposures among immigrants living in the United States: findings from NHANES, 1999–2014 (Article)

Mitro S.D. , Chu M.D.T. , Dodson R.E. , Adamkiewicz G. , Chie L. , Brown F.M. , James-Todd T.M.*
  • a Population Health Sciences Program, Harvard University, Boston, MA, United States
  • b Population Health Sciences Program, Harvard University, Boston, MA, United States
  • c Silent Spring Institute, Newton, MA, United States
  • d Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States
  • e Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, United States
  • f Joslin Diabetes Center, Boston, MA, United States, Harvard Medical School, Boston, MA, United States
  • g Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States, Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States

Abstract

Phthalates exposure has been linked to multiple health risks, and US immigrants may have different exposures to phthalates due to lifestyle differences. Urinary concentrations of eight phthalate metabolites (mono-ethyl phthalate [MEP], mono-n-butyl phthalate [MnBP], mono-isobutyl phthalate [MiBP], mono-(3-carboxypropyl) phthalate [MCPP], mono-benzyl phthalate [MBzP], mono-2-ethylhexyl phthalate [MEHP], mono-(2-ethyl-5-hydroxyhexyl) phthalate [MEHHP], mono-(2-ethyl-5-oxohexyl) phthalate [MEOHP]) were measured in 10318 US-born and 3511 foreign-born individuals from NHANES 1999–2014. Using multivariate adjusted linear regression, we assessed whether phthalate metabolite levels differed by nativity in the whole population, within racial/ethnic groups, and by years in the US. We also tested whether immigrant demographics predicted phthalate metabolite levels. In fully adjusted models, MEP, MnBP, and MiBP were significantly higher, and MBzP significantly lower, among immigrants than US-born participants. Among immigrants, MnBP and MiBP significantly declined with longer time in the US (Ptrend = 0.029 and Ptrend = 0.039, respectively), while MCPP and MBzP significantly rose (Ptrend = 0.019 and Ptrend = 0.043, respectively). Results within each racial/ethnic group were consistent with the whole population. Among immigrants, women had significantly higher metabolite levels than men (all p < 0.01), and MEP, MnBP, and MCPP differed by race/ethnicity. Due to higher phthalate exposures, immigrants may be especially vulnerable to phthalate-associated health problems. © 2018, Nature America, Inc., part of Springer Nature.

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Link
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058598326&doi=10.1038%2fs41370-018-0029-x&partnerID=40&md5=97df2084ca910ece5386eef2abaf6454
DOI: 10.1038/s41370-018-0029-x
ISSN: 15590631
Cited by: 3
Original Language: English