National Survey of Medical Decisions, 2006-2007 (ICPSR 25983)
Version Date: Sep 18, 2009 View help for published
Principal Investigator(s): View help for Principal Investigator(s)
Mick P. Couper, University of Michigan;
Brian J. Zikmund-Fisher, University of Michigan;
Eleanor Singer, University of Michigan;
Angela Fagerlin, University of Michigan;
Peter A. Ubel, University of Michigan;
Floyd J. Fowler Jr., Foundation for Informed Medical Decision Making;
Carrie Levin, Foundation for Informed Medical Decision Making
https://doi.org/10.3886/ICPSR25983.v1
Version V1
Summary View help for Summary
The National Survey of Medical Decisions (the DECISIONS study) was a random-digit dial telephone survey of 3,010 adults over the age of 40 in the United States conducted between November 2006 and May 2007. Participants were asked a series of screening questions to identify which of ten common medical decisions they may have discussed with their health care providers in the previous two years and then completed two to three question modules regarding specific decisions that were relevant to each individual.
Funded by a grant from the Foundation for Informed Medical Decision Making (Boston, MA), the DECISIONS study is a unique data source which enables consideration of a wide variety of research questions related to when and how older adults manage the medical decisions they face. The initial screening module gathered highly generalizeable data regarding the prevalence of different types of common medical decisions in the experience of older Americans. The dynamically-administered modules then requested detailed information regarding how and when patients discuss key medical decisions with their health care providers, and whether variations in decision-making processes may have influenced patients' medical care.
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Geographic Coverage View help for Geographic Coverage
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Date of Collection View help for Date of Collection
Data Collection Notes View help for Data Collection Notes
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The data collection was produced by the University of Michigan Survey Research Center of Ann Arbor, MI.
Sample View help for Sample
List-assisted random-digit-dial (RDD) telephone survey.
Universe View help for Universe
National probability sample of English-speaking United States adults 40 years of age and older.
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Response Rates View help for Response Rates
Weighted AAPOR RR4 = 51.6 percent.
HideOriginal Release Date View help for Original Release Date
2009-08-10
Version History View help for Version History
- Couper, Mick P., Brian J. Zikmund-Fisher, Eleanor Singer, Angela Fagerlin, Peter A. Ubel, Floyd J. Fowler Jr., and Carrie Levin. National Survey of Medical Decisions, 2006-2007. ICPSR25983-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2009-08-10. http://doi.org/10.3886/ICPSR25983.v1
2009-09-18 Added data and documentation.
Weight View help for Weight
The principal investigators constructed several weights to permit generalization to the full population of persons age 40 and older in the United States. First, selection weights reflected the differential sampling rates across strata, and the subselection of cases in Stratum 3. Next, a nonresponse weight was developed, based on the inverse of the response rate in cells defined by stratum, census region, and metropolitan status, using information available on the sampling frame. Finally, the data were post-stratified based on age-adjusted population estimates from the Current Population Survey, using gender, race, age, income, and education. The combined weights facilitate projection of the estimates of the prevalence of each of these medical decisions to the United States population age 40 and older.
In addition, the principal investigators created a module-level weight to compensate for the complex module selection algorithm described above. Inclusion of this weight permits generalization of module-level data to the population of adult patients age 40 and older who are considering each of the decisions examined. Each of these weights is described in the study documentation.
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These data are freely available to data users at ICPSR member institutions. The curation and dissemination of this study are provided by the institutional members of ICPSR. How do I access ICPSR data if I am not at a member institution?
This study is provided by ICPSR. ICPSR provides leadership and training in data access, curation, and methods of analysis for a diverse and expanding social science research community.