Diabetes Study of Northern California (DISTANCE)
Participants in the sample were members of Kaiser Permanente Northern California (KPNC) which provides comprehensive medical services in the San Francisco Bay and Sacramento metropolitan areas. An ethnically stratified, random sample of 40,735 health plan members was selected from the Diabetes Registry of KPNC to receive the DISTANCE Survey. The DISTANCE survey was completed by 20,188 persons aged 30–75 at baseline. Of the 20,188 respondents, 4,524 (22%) had also responded to the prior Diabetes Registry Questionnaire in 1994-1997.
Study design
Cohort
Number of participants at first data collection
20,188 (participants)
Age at first data collection
30 - 75 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
2005 (DISTANCE respondents)
1994 (Diabetes Registry Questionnaire respondents)
Primary Institutions
Kaiser Permanente
Links
No website available
Profile paper DOI
Funders
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
National Institutes of Health (NIH)
Ongoing?
No
Data types collected
- Interview – phone
- Self-report questionnaire – online
- Self-report questionnaire – paper or computer assisted
- None
- None
- Census data
- Healthcare data
Engagement
Keywords
