Smart data and population health can build better, healthier lives

In recent years, there has been growing interest in how population health management can help improve the lives of citizens. Here, we explore how machine learning can provide the data intelligence we need to deliver better healthcare for everyone.

Preventative healthcare is known to be more effective than reactive healthcare. By intervening early and preventing health issues from escalating, individuals, communities, and healthcare providers can all benefit from improved outcomes. With the UK healthcare system under immense pressure, there is a pressing need to shift towards a proactive approach. However, in order to achieve this, we need to understand what factors influence health outcomes. For example, why do people in one area have fewer healthy life years than those in another part of the country?

Population health intelligence is the discipline of finding answers to questions like this. By making the right interventions at the right time, we can improve health outcomes. As Integrated Care Systems (ICSs) work to tackle some of the NHS’s most pressing problems, such as health and care inequalities and financial sustainability, population health intelligence can help make the connections between health outcomes and the factors that influence them.

ICSs bring together NHS, local authority, and third sector bodies, providing access to all the data needed to gain a deeper understanding of population health. This includes everything from NHS records to data on education, housing, and crime. However, the challenge is how to extract the relevant insights that can point to new and better ways of doing things.

Data on life expectancy is a good starting point. It is also a sound measure of health inequality, which is currently in the spotlight. Unlike health data or patient reported outcome measures (PROMS), life expectancy data doesn’t depend on people having accessed healthcare, making it a more inclusive and accurate proxy for overall population health. The variations in the data are stark, with men and women born in Glasgow City today expected to live around 10 years less than those born in Westminster or Kensington & Chelsea.

To understand what’s behind these stats, machine learning can make meaningful analysis of disparate datasets. It can rapidly work across huge volumes and multiple sources of data to identify patterns that can guide decision-making. Population health intelligence can help us analyse the causes of death at different ages in different demographics and the wide range of influences on them.

Factors such as education and housing can affect health outcomes. For example, data analysis may connect high levels of poor housing stock with respiratory illness. This could ultimately show that making improvements to living conditions today could prevent people from developing chronic conditions that lead them to depend on multiple health and care services in the future.

In a similar way, information on dental health, such as the number of people in a single area having teeth removed at a young age, could also be a predictor of chronic conditions such as diabetes and heart disease in future life. This information could direct healthcare interventions towards support for diet and lifestyle changes.

By connecting health data with environmental information, such as air quality or the amount of available green space, population health intelligence techniques could show local authorities where to focus their investment, where people’s physical and mental wellbeing will benefit the most.

Health-related wearables also support the shift towards more personalised and proactive healthcare. From simple step counters and heart rate monitors to sophisticated continuous glucose monitors, people are increasingly willing and motivated to track their own wellbeing. When connected to healthcare systems and analysed by machine learning algorithms, wearable devices and apps could support preventive healthcare by alerting professionals to potential issues, for example, an individual showing pre-diabetic symptoms.

The UK’s move towards integrated care systems presents a huge opportunity to build a proactive approach to healthcare based on insights gleaned from many different data sources. Machine learning is vital for unlocking this potential, helping to build more innovative, impactful, and cost-effective healthcare.