Semnan Birth Cohort Study
Cohort facts:
Location of cohort: Semnan – Semnan Province
Main Ethnicities of participants: Fars
Conducted by: Semnan University of Medical Sciences
Co-Pi:
- Majid Mirmohammadkhani MD PhD
Co-Investigators:
- Elham Saffarieh MD
- Ali Khaleghian PhD
- Nahid Rahbar MD
- Shamsolah Nooripour MD
- Ali Rashidy-pour PhD
- Mahdi Shadnoosh MD PhD
- Seyyed Mohamad Hoseini MD
- Jafar Jandaghi MD MPH
- Maryam Jalili Sadrabad, DDS
Study Execution:
The PERSIAN Birth Cohort Study started in Semnan in August 2017, and enrollment ended in June 2020.
Current Activity: Semnan Birth Cohort Study is currently performing routine follow-ups for the entire cohort population.

Principal Investigator: Navid Danaei, MD
Overview of Cohort Population
Final Enrolled Sample Size
10,116
individuals
Gender Distribution
47% Male
53% Female
53% Female
Age Distribution
35% ----35-44 years
34%----45-54 years
24%----55-64 years
7%----≥65
Residence Type
70% Urban
30% Rural
30% Rural
Contact information
Email: drdanai@gmail.com
Email: majidmirmohammadkhani@yahoo.com
Email: majidmirmohammadkhani@yahoo.com