Perceptions Regarding Investigational Screening for Memory Problems in Primary Care (PRISM-PC)
The purpose of this study is to conduct a cross-sectional survey of primary care patients to better understand their perceptions of the risks and benefits of a screen and subsequent diagnostic confirmation of dementia.
|Study Design:||Observational Model: Cohort
Time Perspective: Cross-Sectional
|Official Title:||Perceptions Regarding Investigational Screening for Memory Problems in Primary Care: The PRISM-PC Study|
- Primary care patients' perceptions of the risks and benefits of early identification of dementia [ Time Frame: Measurement will continue through the duration of the study ] [ Designated as safety issue: No ]
- Evaluation of the association between primary care patients' acceptance for early identification of dementia and their perceptions of the risks and benefits of such identification after adjusting for potential confounders such as demographics [ Time Frame: Measurement will continue through the duration of the study ] [ Designated as safety issue: No ]
|Study Start Date:||February 2008|
|Study Completion Date:||May 2011|
|Primary Completion Date:||May 2011 (Final data collection date for primary outcome measure)|
The Health Belief Model was used to explore the public's acceptance or enthusiasm for early recognition of dementia. Based on this model, prior research and clinical experiences, and a systematic literature review, the PRISM-PC instrument was developed. The PRISM-PC items seek to capture both the patient's acceptance of dementia screening and the patient's perception of potential harms and benefits of such screening. The instrument includes questions regarding screening by performance-based questionnaires, blood tests, or brain imaging.
The PRISM-PC instrument includes 50 items that are organized into 8 sets of questions that cover the following areas:
A) Prior experience with AD (5 items) B) Acceptance of screening for AD (6 items) C) Acceptance of screening for other conditions (2 items) D) Benefits of screening for AD (9 items) E) Stigma of screening for AD (10 items) F) Impact of screening for AD on independence (6 items) G) Suffering of screening for AD (4 items) H) Demographics (7 items) Excluding section A and H (prior experience with AD and demographics), each item of the six other sections is rated on a 5-point Likert scale (strongly agree, agree, don't know, disagree, and strongly disagree).
Based on the previous PRISM-PC pilot study (a survey response rate of 80%) and the Dementia screening and diagnosis study (screening acceptance rate of 90%, positive dementia screening rate of 20% among participants aged 70 and older, and dementia diagnostic acceptance rate of 50%), a total of 1,500 volunteers will be approached. A random selection of 200 participants will be re-administered the questionnaire within one week to test the short-term temporal stability of their responses (test-retest).
Please refer to this study by its ClinicalTrials.gov identifier: NCT00759252
|United States, Indiana|
|Indiana University Medical Group|
|Indianapolis, Indiana, United States, 46202|
|Principal Investigator:||Malaz Boustani, MD, MPH||Regenstrief Institute, Center for Aging Research|