HBM4EU-MOM: Prenatal methylmercury-exposure ontrol in five countries through suitable dietary advice for pregnancy - Study design and characteristics of participants

KATSONOURI, Andromachi, Catherine GABRIEL, Marta Esteban LOPÉZ und Marike KOLOSSA-GEHRING, 2023. HBM4EU-MOM: Prenatal methylmercury-exposure ontrol in five countries through suitable dietary advice for pregnancy - Study design and characteristics of participants. International Journal of Hygiene and Environmental Health [online]. 2023. Bd. 252 (2023). DOI 10.60810/openumwelt-1198. Verfügbar unter: https://openumwelt.de/handle/123456789/1652

Zusammenfassung englisch

Background Seafood is a major source of vital nutrients for optimal fetal growth, but at the same time is the main source of exposure to methylmercury (MeHg), an established neurodevelopmental toxicant. Pregnant women must be provided with dietary advice so as to include safely fish in their diet for nutrition and mercury control. The aim of this work is to present the design of a multicentre randomized control trial (RCT), which combines human biomonitoring (HBM) with dietary interventions using seafood consumption advice to pregnant women for MeHg control, and to collect information about other possible sources of exposure to mercury. It also presents the materials developed for the implementation of the study and the characteristics of the study participants, which were self-reported in the first trimester of pregnancy. Methods The "HBM4EU-MOM" RCT was performed in the frame of the European Human Biomonitoring Initiative (HBM4EU) in five coastal, high fish-consuming European countries (Cyprus, Greece, Spain, Portugal and Iceland). According to the study design, pregnant women (>/= 120/country, /= 15 times per month), followed by Spain (>/= 7 times per month). During the first-trimester of pregnancy, 89% of the Portuguese women, 85% of the Spanish women and <50% of Greek, Cypriot and Icelandic women reported that they had consumed big oily fish. Relevant to non-dietary exposure sources, most participants (>90%) were unaware of safe procedures for handling spillage from broken thermometers and energy-saving lamps, though >22% experienced such an incident (>1 year ago). 26% of the women had dental amalgams. â Ì1% had amalgams placed and â Ì2% had amalgams removed during peri-pregnancy. 28% had their hair dyed in the past 3 months and 40% had body tattoos. 8% engaged with gardening involving fertilizers/pesticides and 19% with hobbies involving paints/pigments/dyes. Conclusions The study design materials were fit for the purposes of harmonization and quality-assurance. The harmonized information collected from pregnant women suggests that it is important to raise the awareness of women of reproductive age and pregnant women about how to safely include fish in their diet and to empower them to make proper decisions for nutrition and control of MeHg, as well as other chemical exposures. © 2023 The Authors

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https://openumwelt.de/handle/123456789/1652

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