The Adventist Health Study-1 was a prospective cohort study investigating which components of the Adventist lifestyle protected against disease. The study began in 1974, with an initial sample of 34,198 non-Hispanic, white Seventh-day Adventists from California in the United States of America included. Recruitment took place from 1974 to 1976, with follow-up conducted every 12 months for 6 years (1977 to 1982). The study also included the Adventist Health Air Pollution Study (AHSMOG Study), a sub study including 6,338 individuals from the original cohort, that investigated the health effects of long-term exposure to ambient air pollutants. The sub study began in 1977, with participants completing questionnaires in 1977, 1987, 1992 and 2000.
Study design
Cohort
Number of participants at first data collection
34,198 (participants)
Age at first data collection
≥ 25 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1974
Primary Institutions
Loma Linda University (LLU)
Funders
American Cancer Society (ACS)
National Cancer Institute (NCI)
National Heart, Lung, and Blood Institute (NHLBI)
National Institute of Environmental Health Sciences (NIEHS)
National Institutes of Health (NIH)
Ongoing?
No
Data types collected

Engagement
Keywords
Consortia and dataset groups