Ibaraki Prefectural Health Study (IPHS)
The IPHS comprises individuals who took part in municipal health checkups in Ibaraki Prefecture, Japan, in 1993. Factors considered for analysis included age, sex, body mass index, blood pressure, serum lipids, diabetes, antihypertensive and lipid-lowering drug use, and smoking and drinking habits. In this large cohort study, 32,989 men and 63,894 women, aged between 40 and 79 years, have been continually followed-up, and mortality has been monitored through death certificates.
Study design
Cohort
Number of participants at first data collection
97,042 (participants)
Age at first data collection
40 - 79 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1993
Primary Institutions
Ibaraki Prefectural Government (茨城県)
Profile paper DOI
Funders
Association of Dialysis Physicians
Japan Society for the Promotion of Science (JSPS)
Ministry of Health, Labor and Welfare (厚生労働省, MHLW)
Ministry of the Environment (環境省)
Ongoing?
Yes
Data types collected
- Interview – face-to-face
- Secondary data
- None
- None
- Healthcare data
- Mortality data
Engagement
Keywords
Consortia and dataset groups
