Assessing Dementia Risk in the Community: The Dementia Population Risk Tool

NCT ID: NCT03155815

Last Updated: 2020-02-17

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 75460 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2000-09-30
• Study Completion Date: 2019-12-31

Brief Summary

The purpose of this study is to develop and validate the Dementia Population Risk Tool (DemPoRT) algorithm to predict dementia incidence in the population setting.

Detailed Description

The burden of disease from dementia is a growing global concern as incidence increases exponentially with age and average life expectancy has been increasing around the world. Planning for an aging population requires reliable projections of future dementia prevalence and resource requirements, however, existing population projections are simple and have poor predictive accuracy. The Dementia Population Risk Tool (DemPoRT) will predict incidence of dementia in the population setting using multivariable modeling techniques.

The derivation cohort will consist of elderly Ontario respondents of Canadian Community Health Survey (CCHS) (2001, 2003, 2005, 2007; approximately 19 000 males and 25 000 females). Pre-specified predictors include sociodemographic, general health, behavioral, functional and health condition variables. Incident dementia will be identified through individual linkage of survey respondents to population-level administrative health care databases. Using time of first dementia capture as the primary outcome and death as a competing risk, sex-specific proportional hazards regression models will be estimated. The 2008/2009 CCHS survey be used for validation (approximately 4 600 males and 6 300 females). Overall calibration and discrimination will be assessed as well as calibration within predefined subgroups of importance to clinicians and policy makers.

Conditions

Dementia

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: RETROSPECTIVE

Study Groups

Derivation Cohort

Eligible respondents to the combined 2001, 2003, 2005 and 2007 Canadian Community Health Surveys, conducted by Statistics Canada.

No interventions assigned to this group

Validation Cohort

Eligible respondents to the 2008/2009 Canadian Community Health Survey.

No interventions assigned to this group

Eligibility Criteria

Inclusion Criteria

• Respondents to the Canadian Community Health Surveys

Exclusion Criteria

• Less than 55 years of age at survey administration
• Prior history of dementia
• Not eligible for Ontario's universal health insurance program

• Minimum Eligible Age: 55 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Canadian Institutes of Health Research (CIHR)

OTHER_GOV

Sponsor Role: collaborator

Institute for Clinical Evaluative Sciences

OTHER

Sponsor Role: collaborator

Ottawa Hospital Research Institute

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Peter Tanuseputro

Role: PRINCIPAL_INVESTIGATOR

Ottawa Hospital Research Institute

References

Fisher S, Hsu A, Mojaverian N, Taljaard M, Huyer G, Manuel DG, Tanuseputro P. Dementia Population Risk Tool (DemPoRT): study protocol for a predictive algorithm assessing dementia risk in the community. BMJ Open. 2017 Oct 24;7(10):e018018. doi: 10.1136/bmjopen-2017-018018.

Reference Type: BACKGROUND

PMID: 29070641 (View on PubMed)

Other Identifiers

CIHR FRN 142237

Identifier Type: -

Identifier Source: org_study_id