MOBIFEM: Air Pollution and Daily Mobility of Pregnant Women Identification of Critical Windows of Exposure

Sponsor
University Hospital, Strasbourg, France (Other)
Overall Status
Recruiting
CT.gov ID
NCT04725734
Collaborator
(none)
800
1
10.9
73.6

Study Details

Study Description

Brief Summary

This study is conducted to assess the role of pregnant women's daily mobility living in the Eurometropole of Strasbourg in a context of the existence of environmental exposure disparities (PM10, PM2.5, NO2). Furthermore, this study will tend to identify the critical windows of exposure and of greater risk of the adverse pregnancy outcomes as low birth weight and prematurity.

A second question addressed in this work is to assess the relationship between the pregnant women's socio-economic status and the air pollution exposure (PM10, PM2.5, NO2).taking into account the spatio-temporal variations of the exposure as well as the critical windows of exposure during pregnancy.

The present work deals with the following question "how does the combination of environmental exposure, socio-economic status and women's daily mobility, could contribute to socio-spatial inequalities in the health of the newborn? The underlying hypothesis is that the accumulation, in given area, of environmental exposures (as PM10, PM2.5 and NO2), of unfavorable living conditions (socio-economic environment) and individual factors (specific spatio-temporal trajectory) would induce an increased risk for the health of the newborn, (more particularly in terms of birth weight and term of birth). This hypothesis is structured 4 sub-hypotheses: i) The misclassification of exposure is socially distributed among pregnant women living in the Eurometropole of Strasbourg. ii) Beyond maternal and fetal characteristics, pregnant women who reside in a more socio-economically deprived neighborhood and / or with higher levels of environmental exposure to PM10, PM2.5 and NO2 are more at risk of preterm newborn and low birth weight newborn. iii) The accumulation of environmental exposures of the pregnant women and their daily mobility over their territory during the pregnancy increase the health inequalities of the newborn. iv) The critical windows of fetal exposure to pollutants is related to the socioeconomic level of their neighborhood and to the daily mobility of the women in their territory during pregnancy. Women are included in the study at the time of their first or second trimester ultrasound. Here are the tools used in the study: Descriptive survey of their idividuals characteristics, descriptive survey of women's mobility to assess their exposure during each trimester of pregnancy.

Condition or Disease Intervention/Treatment Phase
  • Other: Pregnant women

Study Design

Study Type:
Observational
Anticipated Enrollment :
800 participants
Observational Model:
Cohort
Time Perspective:
Prospective
Official Title:
Air Pollution and Daily Mobility of Pregnant Women in the Eurometropole: Identification of Critical Windows of Exposure During Pregnancy
Actual Study Start Date :
Feb 4, 2021
Actual Primary Completion Date :
Feb 4, 2021
Anticipated Study Completion Date :
Jan 1, 2022

Outcome Measures

Primary Outcome Measures

  1. Characteristics of the newborn [7 months]

    Estimation of fetal weight

  2. Characteristics of the newborn [7 months]

    Estimation of birth weight

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years and Older
Sexes Eligible for Study:
Female
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Pregnant women dwelling in the Eurometropole of Strasbourg

  • Women who have done ultrasound monitoring in the HUS (Hopitaux Universitaires de Strasbourg)

  • Good understanding of the French language

  • Women who give her signed agreement of non-opposition to research and / or who give her signed consent for the data collect

Non-inclusion criteria:
  • refusal to participate in the study

  • under-age women (<18 years old)

  • women who not have a clear understanding of the information (emergency situation, comprehension problems…)

  • Women must not be under tutorship or curatorship or under the protection of a conservator ("sauvegarde de justice")

Exclusion criteria:
  • premature delivery threats

  • placenta previa

  • twin pregnancy

  • pre-eclampsia

Contacts and Locations

Locations

Site City State Country Postal Code
1 Les Hôpitaux Universitaires de Strasbourg Schiltigheim France 67303

Sponsors and Collaborators

  • University Hospital, Strasbourg, France

Investigators

  • Principal Investigator: Virginie HAMANN, Les Hôpitaux Universitaires

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
University Hospital, Strasbourg, France
ClinicalTrials.gov Identifier:
NCT04725734
Other Study ID Numbers:
  • 8000
First Posted:
Jan 27, 2021
Last Update Posted:
Apr 1, 2021
Last Verified:
Mar 1, 2021
Individual Participant Data (IPD) Sharing Statement:
Undecided
Plan to Share IPD:
Undecided
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by University Hospital, Strasbourg, France
Additional relevant MeSH terms:

Study Results

No Results Posted as of Apr 1, 2021