Sari Birth Cohort Study

Cohort facts:

Location of cohort: Sari – Mazandaran Province

Main Ethnicities of participants: Mazani

Conducted by: Mazandaran University of Medical Sciences


  • Mohammad Reza Navaeifar, MD
  • Leila shahbaznejad, MD
  • Fereshteh Rostami-Maskopaee, PhD

Study Execution:

The PERSIAN Birth Cohort Study started in Sari in July 2017, and enrollment ended in July 2020.

Current Activity: Sari Birth Cohort Study is currently performing routine follow-ups for the entire cohort population.

Principal Investigator: Mohammad Sadegh Rezai, MD

Overview of Cohort Population

Final Enrolled Sample Size
10,116 individuals
Gender Distribution
47% Male
53% Female
Age Distribution

35% ----35-44 years
34%----45-54 years
24%----55-64 years

Residence Type
70% Urban
30% Rural

Contact information