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Early pregnancy serum levels of perfluoroalkyl substances and risk of preeclampsia in Swedish women
Örebro University, School of Medical Sciences. Department of Health Sciences, Karlstad University, Karlstad, Sweden.
Division of Occupational and environmental Medicine, Lund University, Lund, Sweden.ORCID iD: 0000-0001-7435-9890
Department of Health Sciences, Karlstad University, Karlstad, Sweden; Department of environmental Science and Analytical chemistry, Stockholm University, Stockholm, Sweden .
Department of Health Sciences, Karlstad University, Karlstad, Sweden; Department of Preventive Medicine, icahn School of Medicine at Mount Sinai, New York, USA.
2019 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 9, article id 9179Article in journal (Refereed) Published
Abstract [en]

Preeclampsia is a major cause of maternal and fetal morbidity. Emerging research shows an association with environmental exposures. The present aim was to investigate associations between early pregnancy serum levels of perfluoroalkyl substances (PFAS) and preeclampsia. Within the Swedish SELMA study, eight PFAS were measured at median 10 gestational weeks and cases of preeclampsia were postnatally identified from registers. Associations between individual PFAS and preeclampsia were assessed, adjusting for parity, age, weight and smoking. Out of 1,773 women in the study group, 64 ( 3.6%), developed preeclampsia. A doubling of PFOS and PFNA exposure, corresponding to an inter-quartile increase, was associated with an increased risk for preeclampsia of about 38-53% respectively. Serum PFOS within the highest quartile was associated with an odds ratio of 2.68 ( CI 95%: 1.17-6.12), equal to the increased risk associated with nulliparity, when compared to exposure in the first quartile. The same associations were identified, although with higher risk estimates, in analyses restricted to nulliparous women. For other PFAS, there were no associations. In conclusion and consistent with limited previous research only on PFOS, increasing serum levels of PFOS and PFNA during early pregnancy were associated with a clinically relevant risk of preeclampsia, adjusting for established confounders.

Place, publisher, year, edition, pages
Nature Publishing Group, 2019. Vol. 9, article id 9179
National Category
Obstetrics, Gynecology and Reproductive Medicine
Identifiers
URN: urn:nbn:se:oru:diva-75224DOI: 10.1038/s41598-019-45483-7ISI: 000472597400082PubMedID: 31235847Scopus ID: 2-s2.0-85067898845OAI: oai:DiVA.org:oru-75224DiVA, id: diva2:1339152
Funder
Swedish Research Council Formas
Note

Funding Agencies:

County Council of Värmland  

Örebro University 

Available from: 2019-07-26 Created: 2019-07-26 Last updated: 2019-07-26Bibliographically approved

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