Early Incidence of Occupational Asthma Among Bakers, Pastry-makers and Hairdressers (ABCD)
Recruitment status was Recruiting
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Purpose
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.
| Condition |
|---|
|
Occupational Asthma |
| Study Type: | Observational |
| Study Design: | Observational Model: Cohort Time Perspective: Retrospective |
| Official Title: | Evolution of the Incidence of Occupational Asthma at the Beginning of the Activity of Young Bakers, Pastry-makers and Hairdressers, and Exploration of Its Risk Factors |
- The early incidence of OA among young workers according to their sector of activity and exposure duration. [ Time Frame: 3-6 months after tle last inclusion ] [ Designated as safety issue: No ]
- The identification of risk factors of OA. [ Time Frame: 3-6 months after the last inclusion ] [ Designated as safety issue: No ]
Biospecimen Retention: Samples Without DNA
whole blood, serum, plasma
| Estimated Enrollment: | 1150 |
| Study Start Date: | December 2008 |
| Estimated Study Completion Date: | June 2010 |
| Estimated Primary Completion Date: | June 2010 (Final data collection date for primary outcome measure) |
| Groups/Cohorts |
|---|
|
Young workers
Exposed young workers graduated in sectors at risk of occupational asthma (bakery, pastry-making or hairdressing) "Non-exposed" young workers graduated in sectors without specific occupational exposure as the sale or the food sectors. |
Eligibility| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | Yes |
| Sampling Method: | Non-Probability Sample |
All bakers, pastry-makers and hairdressers who graduated between 2001 and 2006 from nine vocational schools in Lorraine, North-Eastern France, and all subjects who graduated in 2001 in the sale or the food sectors (butcher, pork butcher, caterer, cook job,…) from the same vocational schools.
Inclusion Criteria:
- for the exposed group: to be graduated between 2001 and 2006 from nine vocational schools in Lorraine, North-Eastern France
- for the "non-exposed" group: to be graduated in 2001 in the sale or the food sectors (butcher, pork butcher, caterer, cook job,…) from the same vocational schools
Exclusion Criteria:
- asthma diagnosed before apprenticeship
- for the "non-exposed" group: to have worked previously or later in a sector at risk with OA
Contacts and Locations| Contact: Thomas REMEN, PhD Student | thomas.remen@nancy.inserm.fr | |
| Contact: Christophe PARIS, MD/PhD | Christophe.Paris@nancy.inserm.fr |
| France | |
| CHU Nancy | Recruiting |
| Nancy, France, 54000 | |
| Contact: Thomas REMEN, MSc thomas.remen@nancy.inserm.fr | |
| Contact: Christophe PARIS, MD / PhD Christophe.Paris@nancy.inserm.fr | |
| Principal Investigator: Christophe PARIS, MD / PhD | |
| Principal Investigator: Denis ZMIROU-NAVIER, MD / PhD | |
| Sub-Investigator: Stéphanie DOVI-ACOUETEY, MSc | |
| Sub-Investigator: Thomas REMEN, MSc | |
| Principal Investigator: | Christophe PARIS, MD / PhD | CHU Nancy, INSERM, Nancy University |
| Principal Investigator: | Denis ZMIROU-NAVIER, MD / PhD | INSERM, Nancy university, EHESP School of Public Health |
More Information
No publications provided by Central Hospital, Nancy, France
Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
| Responsible Party: | Christophe PARIS MD/PhD, Central Hospital |
| ClinicalTrials.gov Identifier: | NCT01096537 History of Changes |
| Other Study ID Numbers: | 2008-A00622-53 |
| Study First Received: | March 10, 2010 |
| Last Updated: | December 27, 2010 |
| Health Authority: | France: French Data Protection Authority |
Keywords provided by Central Hospital, Nancy, France:
|
incidence young workers occupations at risk public health |
epidemiology polymorphisms gentic |
Additional relevant MeSH terms:
|
Asthma Bronchial Diseases Respiratory Tract Diseases Lung Diseases, Obstructive Lung Diseases |
Respiratory Hypersensitivity Hypersensitivity, Immediate Hypersensitivity Immune System Diseases |
ClinicalTrials.gov processed this record on May 21, 2013