When we talk about "building bridges" in dementia care, we have to look closely at who those bridges are actually being built for.

Right now, there is a massive gap in the conversation around brain health. Dementia can affect anyone, regardless of their background. In fact, Black, Hispanic, and South Asian populations face a significantly higher risk of developing dementia compared to white populations.

Yet, if you look at the medical research, clinical trials, and data used to create new treatments, the vast majority of participants are white.

If our science doesn’t reflect our communities, our support won't either. 

The Reality of the Data Gap

The dementia research space has thus far tried to solve a global problem using data from a very narrow group of people. And this gap carries significant real-world consequences.

According to a public study highlighted by UC Davis Health, people from minority racial and ethnic populations are far less likely to receive an accurate or timely dementia diagnosis. In fact, it took up to 40% longer for Hispanic individuals and 11% longer for Black individuals to get diagnosed compared to white individuals. Because of this, minority families are missing out on early-stage treatments that could radically improve quality of life.

This data gap is also quietly bleeding into the future of healthcare technology. A lot of cutting-edge dementia research now uses artificial intelligence (AI) to spot the early signs of brain changes through scans and biofluid samples. But if the massive data sets used to train these AI tools are overwhelmingly white, the algorithms inherit that bias.

Breaking Down the Barriers

The lack of diversity isn't because people from minority backgrounds aren’t proactive in taking care of their brain health. As a detailed report by the Alzheimer’s Society points out, the medical world has built up systemic hurdles that make participating in research incredibly difficult.

• Language and Cultural Stigma: Many diagnostic tools and research forms are not culturally tailored, and in some languages, there isn't even a direct translation for the word "dementia," creating an immediate barrier to seeking help.
• Inaccessible Study Designs: Many clinical trials require people to travel long distances to specialised medical centers or take significant time off work - requirements that automatically exclude lower-income or working-class families.
• A Legacy of Distrust: Decades of unequal treatment in healthcare have left a completely valid layer of distrust between minority communities and major medical institutions.

The Real-World Cost: If a breakthrough dementia drug or lifestyle prevention strategy is only tested on one group of people, doctors can't be 100% sure how safe, effective, or accurate it will be universally.

Designing a Fairer Future

Fixing this gap requires a total shift in how research is done. As a network, we believe the way forward means creating new pathways to reach marginalised communities.

Researchers can not rely on patients showing up at their clinics. Instead, they need to go into communities intentionally to build genuine, long-term trust, translate materials properly, and make trials accessible.

Ensuring diversity in dementia research isn't just a matter of fairness - it's the only way we will ever find a way of sustaining quality of life that works for everyone.

Summary of research in Sheffield trying to bridge this gap

Across the BRIDGES for Dementia + Network, researchers are building this inclusive ethos into the foundations of their work. This ranges from workshops held with local Somali and Chinese community centres in Sheffield, translated by employed research champions, to ensure that underrepresented voices are heard in shaping the future of technology in dementia care, to PhD students investigating the potential of portable neuroimaging in community centres to improve the accuracy of dementia assessments for patients whose first language is not English.

We don’t just need to involve underrepresented groups in data collection, but also to participate in study design and implementation. Collaborators at UCL and Sheffield held a “Dementia awareness” event with the Sheffield Chinese community, with live Cantonese translation throughout, breaking down the physical and linguistic barriers that often prevent groups from getting to understand more about their role in changing health. 

With progressive steps like this, we hope to bridge the gaps that currently exist in the dementia research space, and move towards a more universal improvement in the quality of life and care for people living with dementia.