Cohort Study on Substance Use Risk Factors

Dear participants,

The 3rd questionnaire of our study is ready! You will be invited to answer it in the course of 2016. Your participation is essential and very precious.

It will allow us to monitor the evolution of substance consumption and other behaviors of the participants in the last past years. We thank you for contributing to the success of our study and hope we can further count on you! 

Our anonymised longitudinal data are now available for interested researchers!

Take a look at our instruments and questionnaires.

Discover some study results in our newsletter:

French                                           German


 Additionnal results are available in the results section of the website.

Participation rates

Thanks to the participation of more than 6'000 young men in Switzerland, participation rates to the study have met our expectations so far:

We hope to get as good a participation rate to the next survey in 2016-2017. In the meantime, we make sure we keep in touch every year with every participant personally.

Cohort Study

C-SURF is a cohort study directed by the Centre hospitalier universitaire vaudois (CHUV) in Lausanne and the Institute of Epidemiology, Biostatistics and Prevention, University of Zurich in Switzerland. It started in 2010 and is still running today, thanks to the financial support of the Swiss National Research Foundation.

   A cohort study seeks to follow the progression of a group's behaviour by involving members recurrently in the long run.

What is it about and who participates?

All young men at the army recruitment centers in Lausanne (VD), Windisch (AG) and Mels (SG), Switzerland, were invited to participate in this cohort study. It is about:

  • their socioprofessional and family background
  • their lifestyle and personality
  • their consumption of tobacco, alcohol, cannabis and other drugs
  • their gambling and gaming activities and use of internet
  • their sexuality
  • their physical and mental health
  • and their knowledge about other health-related aspects

Further information

Further information can be found here on:

This website is available in French, German and English. © 2010-2015
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Florian Labhart

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