Ravansar Cohort Study
Cohort facts:
Location of cohort: Ravansar – Kermanshah Province
Main Ethnicities of participants: Kurd
Conducted by: Kermanshah University of Medical Sciences
Co-Investigators:
- Yahya Pasdar, PhD
- Ebrahim Shakiba, PhD
- Ghobad Mohammadi, PhD
- Mehdi Moradi Nazar, PhD
Study Execution:
The PERSIAN Cohort Study started in Ravansar in October 2014, and enrollment ended in January 2016.
Current Activity: Ravansar Cohort Study is currently performing annual follow-ups for the entire cohort population and also conducting a repeated measurement phase for 30% of the enrolled participants who have been selected randomly.

Principal Investigator: Farid Najafi, PhD
Overview of Cohort Population
Final Enrolled Sample Size
10,047
individuals
Gender Distribution
47% Male
53% Female
53% Female
Age Distribution
43% ----35-44 years
33%----45-54 years
23%----55-64 years
1%----≥65
Residence Type
60% Urban
40% Rural
40% Rural
Contact information
Email: farid_n32@yahoo.com
Email: fnajafi@kums.ac.ir