Perfluoroalkyl substances in early pregnancy and risk of hypertensive disorders of pregnancy: A prospective cohort study. (May 2020)

• Record Type: Journal Article
• Authors: Huo, Xiaona; Huang, Rong; Gan, Yuexin; Luo, Kai; Aimuzi, Ruxianguli; Nian, Min; Ao, Junjie; Feng, Liping; Tian, Ying; Wang, Weiye; Ye, Weiping; Zhang, Jun
• Is Part Of: Environment international. Volume 138(2020)
• Publication Date: 2020-05
• Subjects: Perfluoroalkyl substances -- Gestational hypertension -- Preeclampsia -- Hypertensive disorders of pregnancy; BMI body mass index -- CI confidence interval -- ENR elastic net regression -- GH gestational hypertension -- HDP hypertensive disorders of pregnancy -- IQRs interquartile ranges -- LOD limit of detection -- OR odds ratio -- PE preeclampsia/eclampsia -- PFASs perfluoroalkyl substances -- PFOA perfluorooctanate -- PFOS perfluorooctane sulfonate -- PFDA perfluorodecanoic acid -- PFUnDA perfluoroundecanoic acid -- PFNA perfluorononanoic acid -- PFHxS perfluorohexanesulfonate -- PFHpA perfluoroheptanoic acid -- PFBS perfluorobutane sulfonate -- PFDoA perfluorododecanoic acid -- PFOSA perfluorooctane sulfonamide -- RCS restricted cubic spline; Environmental protection -- Periodicals; Environmental health -- Periodicals; Environmental monitoring -- Periodicals; Environmental Monitoring -- Periodicals; Environnement -- Protection -- Périodiques; Hygiène du milieu -- Périodiques; Environnement -- Surveillance -- Périodiques; Environmental health; Environmental monitoring; Environmental protection; Periodicals; 333.705
• DOI: 10.1016/j.envint.2020.105656
• Languages: English
• ISSNs: 0160-4120

Abstract

Highlights: PFASs have been widely used in industrial and household products. PFASs were measured in the plasma samples from women enrolled in early pregnancy. All the women gave birth to a singleton live birth. PFASs were not associated with the risk of hypertensive disorders of pregnancy. Abstract: Background: Perfluoroalkyl substances (PFASs) were reported to be associated with hypertensive disorders of pregnancy (HDP) but the results were inconsistent and prospective data are scarce. We aimed to examine these associations in a large prospective birth cohort study in Shanghai, China. Methods: A total of 10 PFASs were measured by high-performance liquid chromatography/tandem mass spectrometry (HPLC/MS-MS) in the plasma samples from 3220 women who were enrolled during early pregnancy and gave birth to a singleton live birth between 2013 and 2016. The outcomes included gestational hypertension (GH), preeclampsia (PE) and overall HDP. Associations of these outcomes with each PFASs were estimated by multivariable logistic regression and expressed as odd ratios (ORs) and 95% confidence intervals (95% CIs). Potential non-linear association between PFASs and HDP was examined with restricted cubic spline model. To handle the potential confounding by correlated PFASs, we applied elastic net regression (ENR) to identify independent PFASs components of outcomes. Results: Among all singleton live births, the incidence rates of GH and PE were 2.0% and 2.2%, respectively. Overall, PFASs did not show a significant and consistent pattern of the associations with GH, PE or overall HDP, both before and after controlling for potential confounders. ENR model confirmed the results that there was no independently predictive role of PFASs on GH, PE or overall HDP. Conclusions: In this large prospective cohort study, maternal plasma concentration of PFASs in early pregnancy were not associated with GH, PE or overall HDP in singleton livebirths.