Harmonization Study Design
The harmonization project is composed of 13 cohort studies. To participate in this project, cohort studies had to meet the following criteria: having at least one follow-up or planning a follow-up within two years, having a sample size of at least 50,000 participants aged 18 years or older, and collecting data on chronic diseases and related risk factors.
CHPT Generic Harmonization Project population
Participants were recruited from one of the 13 cohorts included in the project. The current project includes almost 2 million participants aged 18 years or older from Canada, the United States of America, and across Europe.