Maternal exposure to extremely low frequency magnetic fields: Association with time to pregnancy and foetal growth
| Autor: | Päivi Roivainen, Jukka Juutilainen, Pentti Mäkelä, Tuomo Eskelinen, Jari Keinänen, S Saarikoski, Olavi Kauhanen |
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| Rok vydání: | 2016 |
| Předmět: |
medicine.medical_specialty
Birth weight 010501 environmental sciences Logistic regression 01 natural sciences Cohort Studies Fetal Development 03 medical and health sciences 0302 clinical medicine Pregnancy Humans Medicine 030212 general & internal medicine Finland lcsh:Environmental sciences 0105 earth and related environmental sciences General Environmental Science lcsh:GE1-350 business.industry Obstetrics respiratory system medicine.disease Time to pregnancy Time-to-Pregnancy Low birth weight Magnetic Fields Maternal Exposure Cohort Small for gestational age Female medicine.symptom business Cohort study |
| Zdroj: | Environment International, Vol 94, Iss, Pp 620-625 (2016) |
| ISSN: | 0160-4120 |
| DOI: | 10.1016/j.envint.2016.06.027 |
| Popis: | Background: Data on reproductive and developmental effects of extremely low frequency magnetic fields (ELF MFs) are inconclusive. This study tested the hypothesis that maternal exposure to ELF MFs is associated with increased time to pregnancy (TTP), reduced birthweight or small for gestational age (SGA). Methods: The study cohort consisted of 373 mothers who gave birth between 1990 and 1994 in Kuopio University Hospital, Finland. To increase prevalence of high ELF MF exposure, women living in buildings near known ELF MF sources were included. Maternal exposure to ELF MF before and during pregnancy was assessed with short term measurements in residences and questionnaires. Associations between ELF MF exposure and TTP, low birth weight and SGA were analysed by logistic regression (or linear regression for continuous variables), adjusting for factors known to be associated with the selected pregnancy outcomes, such as maternal smoking, alcohol consumption and socioeconomic status. Results: The MF exposure of the mothers was slightly higher than in Finnish residences in general, but very high exposures (>0.4 μT) were rare. No consistent association of ELF MF with TTP, birth weight or SGA was found. Conclusions: ELF MF exposure is not likely to be associated with TTP or prenatal growth at residential exposure levels that were observable in this study. Keywords: Extremely low frequency magnetic fields, Short-term measurements, Time to pregnancy, Birth weight, Small-for-gestational age |
| Databáze: | OpenAIRE |
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