Skip to main content
Under the radar:
Poor health literacy as a predictor of ill-health
Sue Lacey Bryant
Visiting Professor in Knowledge and Information Mobilisation at Manchester Metropolitan University
Chair, National Health and Digital Literacy Partnership
Immediate past President of CILIP
@SueLaceyBryant @suelacey-bryant.bsky.social
30 March 2026
Image by Jörg Prohaszka from Pixabay
In this session
 The bottom line
 Illiteracy under the radar
 The impact of poor health literacy
 Health inequalities
 The Information environment
 Improving health literacy: What works?
 National Health and Digital Literacy Partnership
The bottom line: the top 3 Take Aways
1. Health literacy is a determinant of health.1
2. Health literacy is a stronger predictor of an individual’s
health than income, employment status, education level
and racial or ethnic group.2
3. The Good News is that “As a person’s literacy, language
and numeracy skills are not fixed they can be improved,
and health literacy is likewise an amenable determinant
of health.” 3
WHO, 2015. https://www.who.int/news-room/fact-sheets/detail/health-literacy
Weiss, B.D. Health literacy: A manual for clinicians. 2nd ed. American Medical Association Foundation, 2007
Local action on health inequalities Improving health literacy to reduce health inequalities PHE, 2025.
https://assets.publishing.service.gov.uk/media/5a80b62d40f0b62302695133/4b_Health_Literacy-Briefing.pdf
The burden of low literacy
 1 in 6 adults in England (16.4%) are estimated to have
very low literacy, which means they may struggle with
longer texts and unfamiliar topics. (OECD, 2016)
 These individuals experience negative impacts on
personal relationships, wellbeing and health, as well as a
greater risk of unemployment or being in low-paid work
 The National Literacy Trust is clear: “If more action is not
taken to tackle low literacy in adults, we risk
perpetuating and reinforcing an intergenerational cycle
of disadvantage”.
Teravainen-Goff, A. et al. Seldom-heard voices: Adult literacy in the UK. National Literacy Trust, 2022.
https://nlt.hacdn.org/media/documents/Adult_Literacy_2022_report_FINAL.pdf
“The reason illiteracy often disappears under the radar is because, by its
very nature, it is exclusionary. Most, if not all, modes of communication
require some literacy skills: texting, looking up a name in a mobile phone
to make a call, using Google Maps to find out where you’re going. That’s
before the onerous process of applying for jobs, or seeking benefits, or
managing your health comes into the picture. People who can’t read
and write are easy to forget about entirely.”
Tom Rasmussen
https://www.vice.com/sv/article/what-it-feels-like-to-be-illiterate-all-your-life/
“But when reading ability really is so often drawn on
class and income lines we must cast the net wider to
be more tolerant of, and helpful to, people who find
it hard to utilise words for their benefit.”
Illiteracy: under the radar
FUNCTIONAL LITERACY
AND NUMERACY
DIGITAL LITERACY INFORMATION
LITERACY
HEALTH LITERACY
Those capabilities that fit
someone for living,
learning, working,
participating and thriving in
a digital society.
The ability to think critically
and make balanced
judgements about any
information we find and use
HEALTH LITERACY: Having the
appropriate skills, knowledge,
understanding and confidence to
access, understand, evaluate, use
and navigate health and social care
information and services.
https://literacytrust.org.uk/parents-and-families/adult-literacy/
https://digital-transformation.hee.nhs.uk/building-a-digital-workforce/digital-literacy/what-is-digital-literacy
https://infolit.org.uk/new-il-definition/
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/460710/4b_Health_Literacy-Briefing.pdf
The ability to read, write, speak
and listen in a way that lets us
communicate effectively and
make sense of the world.
Journey for development of literacies
Adapated from an original graphic
by Dr. Ruth Carlyle, PhD, FCLIP
What is the scale of the problem?
Simpson, R.M. et al, Health literacy levels of British adults: a cross-sectional survey using two domains of the Health
Literacy Questionnaire, BMC Public Health, 2020. https://pmc.ncbi.nlm.nih.gov/articles/PMC7708169/
How understandable is written health information?
Rowlands, G et al. A mismatch between population health literacy and the complexity of health information: an observational study.
BMJGP, 2015. https://bjgp.org/content/65/635/e379
Know your neighbourhood
 The geodata for Health Literacy
and numeracy shows
Prevalence Estimates for Local
Authorities
 Interventions to improve health
literacy will best be targeted at
those with lower levels of
education, those living in the
most deprived areas, and those
with a limiting health condition
or disability.
http://healthliteracy.geodata.uk
Simpson, R.M. et al, Health literacy levels of British adults: a cross-sectional survey using two domains of the Health
Literacy Questionnaire, BMC Public Health, 2020. https://pmc.ncbi.nlm.nih.gov/articles/PMC7708169/
Who needs higher levels of skills and support?
 they are facing multiple complex health problems - compared to when
health issues are straightforward
 their life is complicated by conflicting priorities, demands and issues -
compared to when their life is in a period of stability
 they are most comfortable speaking a language other than English
 in situations when social networks and pressures create barriers rather
than where they are highly supportive
 the individual’s cultural and religious beliefs are different to the norms of
the people around them
 also where the individual’s cultural and religious beliefs are different to the
understanding of health and cultural norms of the health system
 when health systems are disjointed, bureaucratic, technical and
unfriendly rather than well connected and user friendly
What is health Literacy? Canberra Health Literacy Hub, 2025. https://cbrhl.org.au/what-is-health-literacy/
People need higher levels of knowledge, skills, motivation and confidence when:
The impacts of low health literacy
 Use fewer preventative services, such as cancer
screening and flu vaccinations
 Have less recall and adherence to medical instructions
and healthcare regimes
 Are less likely to successfully manage long-term
conditions
 Are more likely to struggle to manage their health and
wellbeing, and that of their family, and so are at
increased risk of developing multiple health problems
 Are 1.5 – 3 times more likely to experience increased
hospitalisation or death; more likely to have depression
Compared with the general population, people with low levels of health literacy:
Improving health literacy to reduce health inequalities PHE, 2015.
https://assets.publishing.service.gov.uk/media/5a80b62d40f0b62302695133/4b_Health_Literacy-Briefing.pdf
Poor health literacy: health inequalities
 Health literacy is related to health outcomes and service use.
 Low health literacy is central to health inequalities because
disadvantaged or vulnerable groups, particularly those from
disadvantaged socioeconomic backgrounds, disabled people,
older people, and migrants and people from ethnic minority groups
are most at risk.
 People with long-term conditions including depression, diabetes, and
heart, kidney and musculoskeletal disease are more likely to have
limited health literacy
 Independent of risk factors including age, education, gender,
ethnicity, limited health literacy predicts poor diet, smoking and a
lack of physical activity (all behaviours detrimental to our health) and
is linked with an increased risk of morbidity and premature death.
https://assets.publishing.service.gov.uk/media/5a80b62d40f0b62302695133/4b_Health_Literacy-Briefing.pdf
 The CCCP worked with 65 ‘sites’, each a
community seeking to reduce health
inequalities, by addressing wider determinants
of health that lead to inequity of access to,
and poor outcomes from care
 Health literacy came to the fore as a key
theme in the analysis of interviews with service
users:
 People using health services were
experiencing confusion, not knowing where
to turn to within the healthcare system
generally
 Service users expressed feelings of relief that
their CCCP initiative had reached out to
them, and is helping by signposting them to
other available services
https://healthworks.uk/home/f/the-cccp-symposium-report
https://usetherightservice.com/
Counting the cost
 Low health literacy rates are associated with higher financial
costs to trusts
 It is estimated to account for 5% of national health spending,
owing to the interrelation between health literacy and unhealthy
lifestyles, low uptake of vaccinations and screening, incorrect or
inappropriate use of medication and increased hospital use
 It is linked to poorer self-management of health and conditions,
which is in turn related to higher overall healthcare costs
 Emergency readmissions could be avoided if patients were
provided with better communication and support at discharge.
https://nhsproviders.org/resources/improving-health-literacy-in-the-nhs/the-case-for-change/the-financial-case-and-enhancing-productivity
The Information Environment
The Information Environment is:
 “the aggregate of individuals,
organizations, and systems that
collect, process, disseminate, or
act on information” (NIST)
 essentially a condition in which
people are born, grow, work, live
and age (Palmer and Gorman)
 one of the non-medical factors
that significantly influence health-
related beliefs, behaviours and
outcomes (Palmer and Gorman)
NIST. https://csrc.nist.gov/glossary/term/information_environment
Palmer, A. and Gorman, S. Misinformation, trust, and health: The case for information environment as a major independent
social determinant of health. https://www.sciencedirect.com/science/article/pii/S0277953625006033
Image by Gerd Altmann from Pixabay
A major social determinant of health
Palmer and Gorman conclude that:
 Information environments differ with respect to the nature and prevalence of
misinformation
 Groups who inhabit information environments with greater amounts of
ideologically-friendly misinformation are more likely to endorse misinformation.
When those environments contain substantial amounts of health-related
misinformation, we can expect different health-related effects compared to
groups who inhabit different information environments
 Recognising information environments as a major social determinant of health
is critical for addressing health inequities. Policy to combat misinformation,
promote health equity, and improve population health outcomes can be
more effective where leaders take this concept seriously.
Farther, faster, deeper
 In a 2018 study by MIT: falsehoods diffused significantly farther, faster, deeper and more broadly
than the truth, in all categories of information. False stories were 70% more likely to be retweeted
than true ones
 Edelman Trust Barometer 2025: 58 % of 18 – 34 year-olds regretted health-related decisions they
made based on misinformation from social media influencers without medical qualifications
 In a recent cross-sectional survey of UK adults:
 81.8% reported they had encountered false or misleading content in the previous 6 months
 Exposure to pharmaceutical and health misinformation had clear behavioural impacts in
terms of people delaying the time they took to seek professional care - even after
adjustment for age, sex, education, ethnicity and urbanicity
 The more frequent the ‘dose’, the greater the delay, those exposed to content Weekly
delayed longer than those seeing it Monthly, or just Once or Twice
 They report that traditional health literacy skills helped identify some forms of misinformation
but were insufficient against AI-enabled tactics
Vosoughi, S. et al, The spread of true and false news online, 2018. https://www.science.org/doi/10.1126/science.aap9559
A Pre-print. El-Osta, A. et al. Exposure to health misinformation, self-care confidence and delayed care-seeking among adults in the UK: a cross-
sectional survey. https://www.researchsquare.com/article/rs-8824194/v1 * aOR Adjusted odds ratio
Edelman, R. et al. "Edelman Trust Barometer: Special Report-Trust and Health." New York, NY: Edelman trust Institute (2025).
 Media literacy supports a healthy information environment, by helping people
tell the difference between accurate information and other types of content.
 Easy access to clear and trusted information helps keep people safe from
misleading information. The government will make sure high-quality, accurate
information and news is available and easy for people to access.
 The approach to delivering a more media literate UK is based on 3 principles:
1. Support people through trusted places like schools, libraries, local services,
and through tailored support. … Make full use of existing tools,
partnerships, and ways of reaching people.
2. Share and use what works … Stay evidence-led and ready to adapt as
risks and technologies change, including new developments in AI.
3. Help everyone play their part including industry, education, voluntary
sector, families
https://www.gov.uk/government/publications/a-safe-informed-digital-nation/a-safe-informed-digital-nation
https://www.heec.co.uk/resource/what-works-to-improve-health-and-digital-literacy-in-disadvantaged-groups/
Grade of evidence: Moderate certainty
Grade of evidence: Low certainty
Grade of evidence: Very low certainty
Working with individuals; making an impact
 There is good evidence that health literacy interventions directly
improve the knowledge and skills of users”. (HEEC, 2024)
 The most successful interventions “tailor information to patients,
use a variety of multi-media tools, focus on upskilling and
empowering users and are delivered over a sustained period of
time. (HEEC, 2024)
 Improved health literacy increases health knowledge; improves
mental health, promotes healthy lifestyle changes; improves
engagement and involvement in health; improves confidence
and self-esteem; improves adherence to medical advice; equips
people to access health services and support; empowers people
to effectively manage long-term health conditions; reduces
disease severity. (PHE, 2015)
https://www.heec.co.uk/resource/what-works-to-improve-health-and-digital-literacy-in-disadvantaged-groups
PHE, 2025. https://assets.publishing.service.gov.uk/media/5a80b62d40f0b62302695133/4b_Health_Literacy-Briefing.pdf
Librarians and the fight against truth decay
 “Of all the professions, librarians are
probably best equipped to tackle
truth decay, by distinguishing
between fact and opinion, assessing
reliability of sources, identifying
potential sources of objective
information.”
 “Perhaps most importantly, librarians
have an opportunity to transfer those
media literacy skills to others, young
to old, to help them navigate the
information landscape and recognise
cognitive biases.”
https://www.cilip.org.uk/news/676673/Full-interview-Stijn-Hoorens--Drilling-into-truth-decay.htm
https://www.nnlm.gov/guides/health-literacy-framework
Information: accessibility, quality, relevance
 NIHR funded research into the readability of information about
osteoporosis. It found that:
 It used unnecessary technical language
 Most of the information was too complex for people to understand
 None of the resources met UK national standards on ease of
reading.
 Some material was misleading - inaccuracies and gaps in
information
 Some did not present balanced information on the benefits and
risks of drug treatments
Crawford-Manning, F., et al. Evaluation of quality and readability of online patient information on osteoporosis and osteoporosis drug
treatment and recommendations for improvement. 2021. https://link.springer.com/article/10.1007/s00198-020-05800-7
Getting your message across
NIHR recommends that
researchers consider how
best to support people
who face extra barriers in
understanding health
information: people with
low literacy, people facing
language barriers, people
with language difficulties
and learning disabilities,
and people with dementia.
https://evidence.nihr.ac.uk/collection/health-information-are-you-getting-your-message-across/
Information as a factor
See: https://www.nnlm.gov/guides/health-literacy-framework
Community-based organisations
Librarians and educators in community organisations can play their part,
aiming to improve the wellbeing of residents, focused on local needs.
NNLM advocates that community- based organisations:
 Organize health education programs, presentations, and events
 Form a health literacy coalition to advocate for programs and policies to
advance health literacy, and promote clear communication
 Train healthcare providers, and other professionals who provide health
information, on clear communication best practices
 Connect community members with clear, accessible, culturally relevant
health information
See: https://www.nnlm.gov/guides/health-literacy-framework
Healthcare organisations can:
 Lead and support health literacy initiatives
 Agree Training policies
 Raise awareness of health literacy as an issue
 Use plain language and promote information
standards and best practice in clear communication
 Co-design information with patients and carers to
ensure it is culturally relevant and meets the need
 Form a health literacy council to promote adoption of
relevant policy and best practice
 Audit the reading age of their patient and health
information materials.
 Use tools like the NHS Readability tool and Flesch-
Kincaid readability test to assess that health
information is clear and accessible
See: https://www.nnlm.gov/guides/health-literacy-framework
https://nhs-providers.uksouth01.umbraco.io/media/ztyhk2tx/health-literacy-briefing-october-2025.pdf
NHS Providers, 2025
Colleges and Universities
NNLM advocates that colleges and
universities:
 Include health literacy and clear
communication in curricula for students in
medical school, nursing school, and other
relevant fields of study
 Offer a ‘Health Communication
concentration’ - cutting across disciplines,
giving a theoretical, methodological and
practical background to relevant
degrees e.g. in Public Health, media and
communications
 Form a health literacy Task Force to help
ensure the institution takes a holistic
approach to advancing health literacy
 Encourage research
See: https://www.nnlm.gov/guides/health-literacy-framework
One example of research:
O’Cathain, A. et al. ‘Health literacy
interventions for reducing the use of
primary and emergency services for
minor health problems’, NIHR, 2022
This literature review reported :
“Health literacy interventions have
potential to affect emergency and
primary care use, but the evidence
base is inconsistent.”
https://pubmed.ncbi.nlm.nih.gov/36534752
Primary and secondary schools
The NNLM network suggests:
 Including health education in
the curricula
 Having school nurses
participate in classes and
training on health literacy
and clear communication
 Providing students and
families with clear,
actionable information about
relevant health topics The lesson plan pack for teachers could be
picked up in any secondary school context
and used immediately by a teacher.
Alison Horner Le Riche and Barbara Moye from Royal Berkshire NHSFT,
winners of the LILAC Information Literacy Award, 2022.
https://www.royalberkshire.nhs.uk/about-us/community-engagement/health-literacy-for-schools
Research organisations and researchers
The NLM Network recommends:
 Required staff training in best practice in clear communication
 Creating plain language materials for patients, such as Informed
Consent forms and research summaries, working with health
literacy experts
 Using assessment tools to ensure resources are clear, accessible,
and culturally relevant
 Asking participant advisory groups to provide input on needs and
gaps in written and oral communications
 Form a health literacy council to help ensure organisation-wide
adoption of relevant norms, practices, and policies
See: https://www.nnlm.gov/guides/health-literacy-framework
Boler M., et al. Promoting Mis/Disinformation Literacy Among Adults: A Scoping Review … Feb 2025
Library teams
NLM Network recommends –
 Improve access to high-quality health and patient information:
 Enable access to clear, comprehensive health information line
 Include current, high-quality health information resources in collections
 Teams strengthen their own health literacy skills
 Teach people how to find reliable information and how to recognise
misinformation
 Raise awareness; offer training on health literacy and health communication
to help organisations build internal capacity
 Share practical techniques to simplify communications and improve
conversations
https://www.nnlm.gov/guides/health-literacy-framework
Librarians can partner to:
 Forge strong partnerships to develop and share resources for
health literacy initiatives
 Welcome healthcare teams to hold events for the public on
health topics
 Get involved in local projects and research
 Take the journey to become a Health Literate Organisation eg.
Staffordshire County Council Libraries worked with Health Literacy
Matters on their journey to become a Health Literate
organisation
See: https://www.nnlm.gov/guides/health-literacy-framework https://www.healthliteracymatters.co.uk/
National health & digital literacy partnership
 Our goals:
1) Establishing a community-based approach to raising low levels of health literacy
that can be sustained over time
2) Supporting ‘Everyone, everywhere’ - practical resources, working through public libraries
3) Ensuring ‘No one is left behind’ - encouraging local targeted initiatives to address
inequalities
 Together we have:
 Co-created learning resources; and there are more bite-sized materials in the pipeline
 Cascaded train-the-trainer training
 Trained public library staff to be health ambassadors; 1 in each of 9 PL regions
 Enabled communities to test different approaches to improving health literacy
 Contributed to policy thinking eg through the APPG on Digital Inclusion, 2023
Freely available resources
https://library.nhs.uk/health-information/
https://www.e-lfh.org.uk/programmes/healthliteracy/
https://library.nhs.uk/yhc/
https://library.nhs.uk/easy-read-for-health/
https://library.nhs.uk/wp-content/uploads/sites/4/2025/05/Misinformation-UnMASKED-checklist.pdf
https://www.lshtm.ac.uk/aboutus/health-information-integrity-network
https://infolit.org.uk/
Collaborating to make a difference
https://mila.org.uk/
Closing the gap
1.Raise awareness
2.Upskill teams
3.Target your efforts
4.Co-design resources
5.Upskill individuals
6.High quality information
7.Health literate organisations
8.Collaborate
9.Measure for Improvement
Thank you
and Any questions?
SLaceyBryant@mmu.ac.uk
https://www.linkedin.com/in/sue-lacey-bryant-a5146510/