Perceptions Regarding Investigational Screening for Memory Problems in Primary Care

Perceptions Regarding Investigational Screening for Memory Problems in Primary Care: The PRISM-PC Study

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00759252

Acronym

PRISM-PC

Enrollment

954

Registered

2008-09-25

Start date

2008-02-29

Completion date

2011-05-31

Last updated

2015-08-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dementia

Keywords

diagnosis of dementia, perceptions of risk, dementia screening

Brief summary

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.

Detailed description

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).

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

65 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* Aged 65 and older * At least one office visit to their primary care physician within the last year * No chart-based diagnosis of dementia or memory problem * Willing to sign a consent form to participate in the study

Exclusion criteria

* Does not speak English * Too hearing-impaired to hear the informed consent statement or the survey * Severe mental illness based on the patient's electronic medical charts

Design outcomes

Primary

Measure	Time frame
Primary care patients' perceptions of the risks and benefits of early identification of dementia	Measurement will continue through the duration of the study

Secondary

Measure	Time frame
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	Measurement will continue through the duration of the study

Countries

United States

Outcome results