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Early Incidence of Occupational Asthma Among Bakers, Pastry-makers and Hairdressers

NCT01096537 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 866

Last updated 2016-07-06

No results posted yet for this study

Summary

Background: Occupational exposures are thought to be responsible for 10-15% of new-onset asthma cases in adults, with disparities across sectors. Because most of the data are derived from registries and cross-sectional studies, little is known about incidence of occupational asthma (OA) during the first years after inception of exposure. This study focuses on this early asthma onset period among young workers in the bakery, pastry making and hairdressing sectors in order to assess early incidence of OA in these "at risk" occupations according to exposure duration, and to identify risk factors of OA.

Methods: This study is a longitudinal retrospective study with a nested case-control to identify risk factors of OA. The assessment of incidence evolution is made by exploring a series of promotions (or retrospective cohorts) with increasing duration since at work. The study population is composed of subjects who graduated between 2001 and 2006 in sectors where they experience exposure to organic or inorganic allergenic or irritant compounds (with an objective of 150 subjects by year) and 250 young workers with no specific occupational exposure.

This study is a descriptive, monocentric, longitudinal and retrospective study with cross-sectional measurements.

Conditions

  • Occupational Asthma

Sponsors & Collaborators

  • Institut National de la Santé Et de la Recherche Médicale, France

    collaborator OTHER_GOV

  • University of Nancy

    collaborator OTHER

  • Central Hospital, Nancy, France

    lead OTHER

Principal Investigators

  • Christophe PARIS, MD / PhD · CHU Nancy, INSERM, Nancy University

  • Denis ZMIROU-NAVIER, MD / PhD · INSERM, Nancy university, EHESP School of Public Health

Eligibility

Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2008-12-31
Primary Completion
2010-01-31
Completion
2010-06-30

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01096537 on ClinicalTrials.gov