Etuini Ma'u, Naaheed Mukadam, Gill Livingston, Sebastian Walsh, Susanne Röhr, Carol Brayne, Gary Cheung, Sarah Cullum
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PIF and modeled reductions at all time points were higher for Māori and Pacific peoples.</p>\n </section>\n \n <section>\n \n <h3> DISCUSSION</h3>\n \n <p>The projected impact of interventions targetting risk factor reduction increases over a 30-year time horizon and the benefit is potentially higher in ethnic groups with higher risk factor prevalence.</p>\n </section>\n \n <section>\n \n <h3> Highlights</h3>\n \n <div>\n <ul>\n \n <li>Achievable risk factor reductions have significant prevention potential.</li>\n \n <li>The projected impact of risk factor interventions increase with time.</li>\n \n <li>We need to consider longer time horizons when assessing proposed interventions.</li>\n </ul>\n </div>\n </section>\n </div>","PeriodicalId":7471,"journal":{"name":"Alzheimer's & Dementia","volume":"21 7","pages":""},"PeriodicalIF":13.0000,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/alz.70440","citationCount":"0","resultStr":"{\"title\":\"Estimating the impact of risk factor reduction on dementia prevalence in New Zealand\",\"authors\":\"Etuini Ma'u, Naaheed Mukadam, Gill Livingston, Sebastian Walsh, Susanne Röhr, Carol Brayne, Gary Cheung, Sarah Cullum\",\"doi\":\"10.1002/alz.70440\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> INTRODUCTION</h3>\\n \\n <p>We aimed to estimate the prevention potential associated with a reduction in risk factor prevalence and the subsequent impact on dementia prevalence projections over time</p>\\n </section>\\n \\n <section>\\n \\n <h3> METHODS</h3>\\n \\n <p>We calculated potential impact fraction (PIF) of a 15% and 25% proportional reduction in risk factor prevalence for 12 modifiable dementia risk factors for New Zealand, and individually for the four main ethnic groups, then modeled this over a 30-year period.</p>\\n </section>\\n \\n <section>\\n \\n <h3> RESULTS</h3>\\n \\n <p>The PIF for the total NZ population following a 15% risk factor reduction was 14.6% (95% confidence interval: 7.7–21.1) Modeled projections demonstrated prevalence reduction over time, from 1.0% at 10 years to 4.2% at 30 years. 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Estimating the impact of risk factor reduction on dementia prevalence in New Zealand
INTRODUCTION
We aimed to estimate the prevention potential associated with a reduction in risk factor prevalence and the subsequent impact on dementia prevalence projections over time
METHODS
We calculated potential impact fraction (PIF) of a 15% and 25% proportional reduction in risk factor prevalence for 12 modifiable dementia risk factors for New Zealand, and individually for the four main ethnic groups, then modeled this over a 30-year period.
RESULTS
The PIF for the total NZ population following a 15% risk factor reduction was 14.6% (95% confidence interval: 7.7–21.1) Modeled projections demonstrated prevalence reduction over time, from 1.0% at 10 years to 4.2% at 30 years. PIF and modeled reductions at all time points were higher for Māori and Pacific peoples.
DISCUSSION
The projected impact of interventions targetting risk factor reduction increases over a 30-year time horizon and the benefit is potentially higher in ethnic groups with higher risk factor prevalence.
Highlights
Achievable risk factor reductions have significant prevention potential.
The projected impact of risk factor interventions increase with time.
We need to consider longer time horizons when assessing proposed interventions.
期刊介绍:
Alzheimer's & Dementia is a peer-reviewed journal that aims to bridge knowledge gaps in dementia research by covering the entire spectrum, from basic science to clinical trials to social and behavioral investigations. It provides a platform for rapid communication of new findings and ideas, optimal translation of research into practical applications, increasing knowledge across diverse disciplines for early detection, diagnosis, and intervention, and identifying promising new research directions. In July 2008, Alzheimer's & Dementia was accepted for indexing by MEDLINE, recognizing its scientific merit and contribution to Alzheimer's research.