Ardabil Cohort Study

Cohort facts:

Location of cohort: Ardabil – Ardabil Province

Main Ethnicities of participants: Turk

Conducted by: Ardabil University of Medical Sciences


  • Abbas Yazdanbod, MD
  • Shahram Habibzadeh, MD
  • Hadi Peeri Dogaheh, PhD
  • Ali Nemati, PhD
  • Elnaz Faghfuri, PhD
  • Telma Zahirian Moghadam, PhD
  • Sanaz Pourfarzi, MD

Study Execution:

The PERSIAN Cohort Study started in Ardabil in May 2017, and enrollment ended in March 2020.

Current Activity: Ardabil 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: Farhad Pourfarzi, MD

Overview of Cohort Population

Final Enrolled Sample Size
20,951 individuals
Gender Distribution
46% Male
54% Female
Age Distribution

35% 35-44 years
37% 45-54 years
23% 55-64 years
5% ≥65 years

Residence Type
100% Urban
0% Rural

Contact information