Related Experiment Video
Updated: Jun 10, 2026

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
The CONSTANCES cohort: an open epidemiological laboratory.
Marie Zins1, Sébastien Bonenfant, Matthieu Carton
1Inserm U1018, Epidemiology of occupational and social determinants of health - Centre for Research in Epidemiology and Population Health, 16 avenue Paul Vaillant Couturier, F-94807, Villejuif, France.
The CONSTANCES cohort study recruits 200,000 French adults to examine health determinants. This large prospective cohort will provide valuable public health data on aging and occupational factors.
Area of Science:
- Epidemiology
- Public Health
- Longitudinal Studies
Background:
- Prospective cohort studies are crucial for understanding disease etiology.
- The CONSTANCES cohort aims to provide public health insights and serve as an open research laboratory.
- Focus areas include occupational and social health determinants, and aging.
Purpose of the Study:
- To establish a large, representative French cohort for epidemiological research.
- To investigate the interplay of lifestyle, environment, genetics, and health outcomes.
- To focus on occupational and social factors influencing health and aging.
Main Methods:
- Recruitment of 200,000 French adults aged 18-69 over five years.
- Comprehensive health examinations, questionnaires, and biobanking at inclusion.
- Longitudinal follow-up via yearly questionnaires and national health/retirement/death databases.
Main Results:
- A field-pilot with 3,500 subjects demonstrated a satisfactory sample structure and data validity.
- The study aims to collect extensive data on social, behavioral, occupational, and health factors.
- A parallel cohort of non-participants will be followed to address attrition bias.
Conclusions:
- The full sample constitution was planned for late 2010.
- The CONSTANCES cohort was launched in early 2011.
- This resource will facilitate research on diverse health endpoints and determinants.
Related Concept Videos
Introduction to Epidemiology
Principles of Disease Surveillance
Statistical Methods for Analyzing Epidemiological Data
Study Designs in Epidemiology
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.
Investigation of Disease Outbreaks
Confounding in Epidemiological Studies

