Maternal-Infant Research on
Environmental Chemicals

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In 2018, we started
a new follow-up study

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Study Overview

MIREC Study was established to obtain national biomonitoring data on pregnant women and their infants and to examine potential adverse health effects of prenatal exposure to environmental chemicals on pregnancy and infant health. 

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While the MIREC researchers and their students and trainees continue analysing the data collected so far, we recently launched a new follow-up study of the MIREC participants. This study is called MIREC-ENDO. The focus has shifted towards puberty—when it starts and how it progresses. We are working hard to learn everything we can, and MIREC families are helping us.  Visit us often, we will keep you informed!

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Some Facts and Figures

MIREC Study: pregnancy cohort, recruited from 2008 to 2011.

MIREC Follow-up Studies: MIREC-ID, MIREC-CD3, MIREC CD-Plus took place from 2009 to 2015.

Phase I of MIREC-ENDO started recruitment in 2018, and will end in 2021.

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Follow-up Studies

Data analyses from the initial MIREC study (2008-11) and publication of results in scientific journals continue. Recruitment of MIREC families and collection of data and biological samples for three follow-up studies is also complete. The first follow-up study (MIREC-ID) examined babies at birth and 6 months of age, the second one (MIREC-CD3) focused on children at 3 years of age, and the third one (MIREC-CD Plus) targeted MIREC children aged 2 to 5 years old. In 2018, we started the first wave of the MIREC-ENDO follow-up study, to look at the onset and progression of puberty and growth of children from 7 to 9 years old, as well as the metabolic health of their mothers.

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Over 60 MIREC related papers have been published in scientific journals so far, and this number continues to grow. You can find the full list here, along with a summary of each paper.

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The MIREC Biobank is made up of over 200,000 MIREC biological samples collected in the course of the MIREC study, as well as the MIREC-ID, MIREC-CD Plus and MIREC-ENDO follow-up studies. It also includes data from the questionnaires completed by the participants during each of these studies as well as the results from hundreds of laboratory tests.

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You are a MIREC participant?

This section of the Website is for you. We hope to be able to keep contact with you and your family, and continue to keep you informed over the years.

The protected zone will allow us to post study updates of interest to you, and allow you to easily share your new coordinates with us or send us comments in a confidential manner.

We invite you to create your account to access the protected zone.

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The MIREC Research Platform is an important resource for research on the mother’s and child’s health. The usefulness of the material collected goes far beyond this single study. The unused portions of the biological samples collected were saved to create what became the MIREC Biobank, which also includes a very large dataset from questionnaires and laboratory analyses. Since the initial study, which followed 2001 pregnant women, three follow-up studies were conducted, and five projects were done, based on the Biobank content. For more information regarding the MIREC Biobank, please refer to the below documentation. Do not hesitate to contact us if you have questions.

icon-biobank-projectsBiobank Projects Content

icon-application-formBiobank Application Form



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