Introduction

The health and care system in the UK is facing some of the most significant challenges in its history. Services are finding themselves under huge pressure – a result of both the COVID-19 pandemic and a period of significant underinvestment. At the same time, the need to reshape care to better meet future health needs is becoming more urgent. Enabling services to recover and rising to meet these challenges will require the NHS to use every tool available.

Learning health systems (LHSs) offer one possible way to help services recover and improve, even within the current challenging circumstances. Rather than simply relying on ‘top-down’ national policy interventions alone, they harness the power of providers to drive improvement from within – and, moreover, to do so as part of ‘business as usual’. As such, LHSs can be powerful vehicles for improving services and population health. They may be particularly important for achieving successful service transformation over the next few years. For example, NHS England’s Transformation Directorate recently indicated that it sees LHS approaches as important for realising the benefits of new technologies in the NHS. The significant service innovations that were implemented rapidly after the onset of the COVID-19 pandemic show what can be achieved when people come together around a common ambition, when we maximise the use of data and when staff are supported to deliver change.

In many ways, health care has always been a form of ‘learning system’. But recent advances in data and technology, coupled with the move towards better collaboration and integration between services, are now presenting new opportunities to learn and improve in a more systematic way. Since the term ‘learning healthcare system’ was coined by the Institute of Medicine in the US in 2007, interest in the LHS agenda has been growing rapidly.

Despite this growing interest, most providers and systems have not yet been able to capitalise on the potential of LHSs. There are several reasons for this gap between promise and practice. There are many different conceptions of LHSs, as well as a lack of a robust, practical evidence base. This makes it difficult to forge consensus on what an LHS is and the benefits it can bring. There are a range of practical challenges with creating LHSs: the capabilities they require, such as data analytics and quality improvement skills, need nurturing in their own right, and attempts to do so often run up against wider structural, policy or resource barriers. At the same time, it can be hard for policymakers and organisational and system leaders to know how best to support this agenda.

The report

This report, part of Health Data Research UK’s (HDR UK’s) Better Care programme, aims to tackle these questions head-on. We seek to demystify LHSs and contribute to a clearer narrative and vision about the role LHS approaches can play in improving health and care. We also seek to identify the most pressing challenges, explore several important areas where targeted action by policymakers and organisational and system leaders could lead to tangible progress, and support policymakers and practitioners as they consider the next steps.

For this project we carried out desk research and conducted interviews with expert stakeholders. To further investigate the opportunities and challenges for LHSs, we conducted a purposive online survey of 109 expert stakeholders between December 2021 and January 2022, the results of which are described throughout this report. Our respondents represented a range of expertise from across the UK, both in LHSs and in the key areas of LHS activity, such as collecting and analysing data, engaging patients and the public, and quality improvement. We also explored existing examples of LHSs, with detailed investigation of 16 case studies. In addition, we drew together learning from the Health Foundation’s programmes and research across areas such as quality improvement, technology and data analytics, as well as our experience of supporting networks such as the Q community and the NHS-R community. We also drew on learning from HDR UK’s Better Care programme.

Content overview

Chapter 1

Chapter 1 looks at what LHSs are and the different types in existence, as well as highlighting the common activities and assets underpinning them all. It explores the growing interest in LHSs in the UK and considers why they might be particularly relevant over the coming years.

This chapter will be useful for those interested in the concept of LHSs and those who would like to understand how LHS approaches can address key health and care challenges and drive improvement.

Chapter 2

Chapter 2 considers four key areas that are particularly important for LHSs: learning from data, harnessing technology, nurturing learning communities and implementing improvements to services. For each, it details the key opportunities and challenges for LHSs, drawing on our survey evidence to identify which challenges are the most pressing.

This chapter will be useful for those wishing to understand in more detail the different aspects of LHSs and some current challenges for developing them. Some readers may already be familiar with the debates in particular sections (as many of the complexities facing LHSs are reflective of broader challenges) and so may wish to explore the sections with which they are less familiar.

Chapter 3

Chapter 3 explores key priorities for developing LHS approaches, as identified by our survey respondents. It also offers recommendations for how these priorities could be realised.

This chapter will be useful for policymakers and organisational and system leaders to understand what practical actions they can take to support the development of LHSs. It may also be useful for practitioners who wish to understand the broad spectrum of actions that can be taken to support LHS approaches.

Case studies

Throughout this report, we draw on 16 case studies to exemplify LHS approaches that are already being applied across the UK (see Box 2 for a summary).

Box 2: Case studies

We present 16 case studies in this report. As indicated in Table 2, some of the case studies are presented as examples of full LHSs, while others concentrate on one of the four areas discussed in Chapter 2.

Table 2: The 16 case studies and what they focus on

No

Case study

Used to illustrate…

1

Flow Coaching Academy

Full LHS

2

PINCER – a pharmacist-led intervention to reduce medication errors

Full LHS

3

CFHealthHub – a digital learning health system

Full LHS

4

Nightingale bedside learning coordinator

Full LHS

5

The Clinical Effectiveness Group

Full LHS

6

The Children & Young People’s Health Partnership

Full LHS

7

The Secure Anonymised Information Linkage (SAIL) Databank

Data

8

Informatics Consult

Data

9

Towards a national learning health system for asthma in Scotland

Data

10

Reducing the health burden of diabetes with artificial intelligence-powered clinical decision tools (RADAR)

Technology

11

Cambridge University Hospitals’ eHospital programme

Technology

12

Project Breathe – artificial intelligence-driven clinical decision-making tools to manage cystic fibrosis

Technology

13

Thiscovery

Learning community

14

Q Lab UK

Learning community

15

HipQIP – hip fracture quality improvement programme

Improvement

16

Reducing brain injury through improving uptake of magnesium sulphate in preterm deliveries (PReCePT2)

Improvement

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