Urmia Lake Cohort Study

Cohort facts:

Location of cohort: Qushchi – West Azarbaijan Province

Main Ethnicities of participants: Turk

Conducted by: Urmia University of Medical Sciences


  • Javad Aghazadeh, MD

Study Execution:

The PERSIAN Cohort Study started in Qushchi in February 2017, and enrollment ended in January 2019.

Current Activity: Urmia Lake 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: Iraj Mohebbi, MD

Overview of Cohort Population

Final Enrolled Sample Size
5,163 individuals
Gender Distribution
44% Male
56% Female
Age Distribution

37% ----35-44 years
31%----45-54 years
24%----55-64 years

Residence Type
18% Urban
82% Rural

Contact information

Email: : mohebbi_iraj@yahoo.co.uk