Gauging the resilience of UK health and health systems

Having discussed the UK’s health performance, and its likely adverse impact on the economy, how robust or resilient are UK health and health care systems in tackling these problems? Given the tight coupling of health, economic and social systems, these systems are not confined to health and health care.

Resilience is often defined as the capacity of a system to deal with shocks without impairment of its core services and without putting undue strain on other supporting systems, including government. In 2008, the UK financial system plainly lacked resilience because, in the face of a global shock, it was unable to provide its core services of protecting people’s money and borrowing, and would have collapsed without large-scale government support.

How does UK health care fare on those criteria? As with financial and other complex systems, there is no singular metric to gauge resilience. One indirect metric comes from international comparisons of health performance. If we look at life expectancy, the UK occupies a mid-table position by OECD standards, though it is notable that most advanced Western economies sit above the UK, while those below are mostly emerging economies.

These aggregate data conceal significant distributional differences, however. Taking healthy life expectancy – a better measure of economic activity – there are striking distributional differences across income cohorts. HLE among the least deprived decile is around 15 years longer than for the most-deprived (see Figure 6). A man or woman in the most deprived decile spends around one-third of their lives in ill health, compared with around one-tenth for the least deprived.

Figure 6: Life expectancy and healthy life expectancy by level of deprivation, men and women, Great Britain

Source: The Health Foundation (2022)

These distributional differences have an important age dimension too. Recent Health Foundation analysis uses Cambridge Multimorbidity Scores to show that differences in health performance increase most dramatically for those in the 50–64 year old cohort. This is also the cohort that has suffered the largest fall-off in activity recently.

These multimorbidity scores also make clear, however, that the seeds of health differences are sown early, and become more noticeable when people are in their 30s. From a relatively early age, health inequalities disadvantage poorer households and accumulate over time. This underscores the importance of preventative health, and improvements in economic and financial outcomes, if we are to improve health outcomes later in life for the most disadvantaged in society.

Health care systems

When it comes to health care systems themselves, one simple gauge of resilience is provided by spending. By comparison with other OECD countries, average spending on health per person in the UK is roughly around the average. Even then, however, it is notably less than Germany and most Scandinavian countries. And among G7 countries, the UK fares less well still, with the second lowest spend per head.

More broadly, however, average spending on health may tell us more about the efficiency of a health care system than about its resilience. Indeed, there may sometimes be a tension between the two. A system run in a highly efficient, cost-effective way may then lack the redundancy or slack needed to cope with unexpected shocks; it may lack resilience. Several diagnostics suggest this is a good characterisation of the UK health care system.

The resilience of any system is bolstered by investment. Over the past decade, investment in the UK health care system has lagged international comparators. By 2020, this meant the UK was operating with materially fewer doctors and beds per head of population than the OECD average (see Figure 7). The differences with economies such as Norway and Germany are now striking. The King’s Fund estimates that NHS hospital beds have fallen 50% over the past 30 years.

Figure 7: Doctors and beds per 1,000 population across developed economies, 2020 (or latest available)

Source: OECD Health Statistics (2022), REAL Centre

Improvements in adult social care are central to the issue of hospital beds and the resilience of the system. As older people account for an increasing share of the population, the system needs to adapt to this changing demographic. But over the past decade, age-adjusted annual spending per person on social care has declined and remains below levels in 2010 (in real terms).

This relative underinvestment in the UK health care and social care systems has, predictably, led to a lack of spare capacity in normal times but especially in abnormal ones. Even before COVID-19 struck, this could be seen in a variety of metrics such as lengthening waiting lists and waiting times. NHS waiting lists for elective care rose from 2.5 million in 2012 to 4.5 million on the eve of the COVID-19 crisis, a near-doubling.

The shock of COVID-19 has not just exposed those fragilities but significantly amplified them. Waiting lists now stand at around 7 million people,,, a near-tripling from a decade ago, although the true number may be less than that with double counting. Waiting times have also extended massively, with the number of people waiting over a year for treatment having risen to almost 400,000, from just over 1,000 as recently as 2019. It is reported that 1 in 6 UK adults have been unable to receive treatment, almost half of these cases being due to long waiting list times. This is almost triple the EU average. This points to a system fragile and at some risk of breaking in the event of another shock.

The effects of this on the experiences of both patients and NHS workers are also clear to see. Among patients, levels of satisfaction with the NHS have fallen to their lowest levels in 25 years. Among health care workers, almost half now report being ill due to work-related stress and 1 in 5 report high levels of depression., This is affecting recruitment, with 132,139 unfilled vacancies across the NHS, 10% of the planned workforce.

Looking to the future, most projections suggest this staffing fragility may increase. The Health Foundation estimates the workforce shortfall could reach around 160,000 by 2030/31, around 9% of projected staff demand. This suggests existing NHS care models will not be able to deliver 2018/19 standards over the coming decade without compromising on quality, safety, productivity and/or staff wellbeing.

Overall, then, this diagnostic evidence points in a consistent direction – a health care system whose underlying resilience is weak and weakening. This fragility has affected most acutely those most in need, whether by age or income.

Health inequalities

Of course, the resilience of the health care system cannot be gauged simply by looking at its own resilience but also those supporting sub-systems that shape and support health outcomes – economic and social, national and local. There is plenty of evidence these too have seen their resilience denuded over recent years, in ways that have compounded and contributed to health challenges.

Inequalities in health start at an early age, with higher rates of diagnosed mental health conditions, chronic pain and alcohol problems developing as early as the late teens and early 20s. These health inequalities then tend to grow over the life cycle through working and into old age. Levels of poverty among children are a key determinant of this life and health trajectory.

By international standards, the UK has one of the largest shares of children living in households in relative poverty. And government spending has not offset this trend: spending on children in the most deprived areas has decreased significantly over the past decade and, notably, is now no higher than in the wealthiest parts of the UK. This has contributed to an increasingly uneven playing field in health outcomes, seeding the rising incidence of long-term illness and inactivity at all life stages.

A compounding factor here, affecting most acutely younger and poorer households, has been rising levels of economic and financial insecurity. These insecurities have shown up in flat or falling levels of real pay, smaller pools of savings and weakened financial resilience, especially among the poorest households. These financial fragilities are being exacerbated currently by the cost-of-living crisis, which is also hitting hardest the poorest in society.

Research from the RSA suggests a direct and significant link between this rise in economic and financial insecurity and long-term health conditions, including mental health problems among younger people. There is a self-reinforcing cycle at work here, with low economic security worsening health and compounding economic insecurities due to more limited access to the jobs market. This helps explain the trends in long-term ill health and inactivity among the young.

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