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Professor Carrie Llewellyn

Prof Carrie Llewellyn

Professor Carrie Llewellyn (BSc, MSc, PhD, CPsychol, CSci, AFBPsS)

Professor of Applied Behavioural Medicine
Location: Room 106, Watson Building, Brighton and Sussex Medical School, University of Brighton Falmer campus, BN1 9PH

Areas of expertise: Sexually transmitted infections (STI); HIV; HPV; prevention; behaviour change; health psychology; social cognition models; patient preferences; co-production 

Research areas: Public Health Psychology; Sexual Health & HIV; Marginalised & Coastal Community Health; Health Data Science

Head of the Department of Primary Care and Public Health

Preferred gender pronouns: she/her

Twitter: @cdllewellyn1 


Professor Carrie Llewellyn is Head of the Department of Primary Care & Public Health, a Professor of Applied Behavioural Medicine, a behavioural scientist and a Chartered Psychologist and Associate Fellow of the British Psychological Society. She graduated King's College London with a PhD in Psychology as Applied to Medicine in 2005 and has since worked at BSMS. 

Between 2018 and 2022 she was the Chair of the South East and Central (SEC) Regional Advisory Committee for the NIHR Research for Patient Benefit Programme and since 2023 she has been a member of NIHR Programme Grants for Applied Research (PGfAR), which funds collaborative, multidisciplinary programmes of applied research to solve health and social care challenges.  

Carrie has taught undergraduate medical students since 2002 and has over twenty years’ expertise in applied, patient orientated research across a range of research designs and analysis: both quantitative (interventional RCTs, cluster RCTs, prospective cohort studies, discrete choice experiments) and qualitative methods and leads a portfolio of applied behavioural research in sexual health, related mainly to sexually transmitted infections (STIs) and HIV prevention, in addition to research furthering our understanding of how stigma leads to health inequalities among marginalised and seldom heard populations.

Carrie sits on the management board for the Centre for Transforming Sexuality and Gender at the University of Brighton and was previously a governor for the Centre for Cultures of Reproduction, Technologies and Health (CORTH) at University of Sussex. She has previously been a member of the British Psychological Society’s (BPS) Research Board. She is lead editor of the 3rd edition of the highly respected Cambridge Handbook of Psychology, Health and Medicine (Cambridge University Press). See more here >


Carrie has >100 peer reviewed publications, book chapters and books and has an interest in understanding the wider social determinants of health and providing and shaping evidence to support the reduction of health inequalities among often marginalised people and those with stigmatised conditions. She is currently funded by NIHR and collaborates with many external partners including Brighton & Hove City Council. 

Carries earlier epidemiological and psychological research in the field of head and neck cancer continue to be highly cited and remain influential. Impact was demonstrated by their inclusion as evidence in both European and UK guidelines which provide recommendations on the assessment and interventions for the psychological management in this patient group.

Carrie has more recently given written and oral evidence as a witness to the Women and Equalities (Select) Committee at the House of Commons on their ‘Health and social care and LGBT communities’ enquiry. She has an extensive portfolio of research in the field of sexual health and also has a particular interest in the broader health inequities experienced by those identifying as LGBTQi. 

Carrie is Kent, Surrey & Sussex (KSS) Applied Research Collaboration (ARC) Lead for the National Priority Consortium in Prevention with Behavioural Risk Factors. The aim of this consortium is to work across all 15 ARCs and with national stakeholders to reduce ill health and prevent premature mortality.

Links to current research:


Carrie supervises PhD/MD/MSc students, undergraduate Individual Research Project (module 404) students and Academic Clinical Fellows (ACFs) and Academic Foundation Trainees (F2s) at BSMS. She has previously contributed to teaching across the following courses since 2006: Scientific Basis of Medicine (302); General Practice and Population Medicine (404); Population Medicine (201); Reproduction and locomotion (203); Student Selected Components (202 and 307); Postgraduate Research Methods and Critical Appraisal (MDM10), in addition to teaching on the intercalated BSc in Psychology for BMBS students, BSc in Health Psychology, Interprofessional Education Programme (IPE) ‘Clinical Communication and Ethics in Healthcare’  and the MRC Psychiatry Parts I & II Social Psychology at the Institute of Psychiatry and Kings College London.

Prospective students can contact Carrie for supervisory consideration.

Selected publications

Cross, H; Bremner, S; Meads, C; Pollard, A, Llewellyn, C (2023) Bisexual people experience worse health outcomes in England: Evidence from a cross-sectional survey in primary care.  Journal of Sex Research http://doi 10.1080/00224499.2023.2220680

Nadarzynski T, Lunt A, Knights N, Bayley J & Llewellyn C (2023) But can chatbots understand sex?” Attitudes towards Artificial Intelligence chatbots amongst sexual and reproductive health professionals: an exploratory mixed-methods study. International Journal of STD & AIDS  https://doi.10.1177/09564624231180777

White, L, Holland, D, Pantelic, M & Llewellyn CD (2023) “I Carry So Much Anger, and That Is Not Good for My Health,” the Mental Health Impact of Current Gender Affirming Healthcare Pathways on Transgender Adults in England. Bulletin of Applied Transgender Studies 

Pantelic M, Coombes Z, Barnard P, Hartshorn J, Caswell G, Sharma A, Whitbread J,  Nyikavaranda P, Llewellyn C (2023).  ‘HIV has taught us that you can survive anything’: Findings from authoethnographic video diaries exploring resilience among people living with HIV during Covid-19 in five countries  AIDS Care

O’ Flanagan H, Siddiq M, Llewellyn C, Richardson D (2023) Antimicrobial resistance in sexually transmitted Shigella in men who have sex with men (MSM): A systematic review Int J STD AIDS 34(6):374-384. https://doi: 10.1177/09564624231154942.

Harmanci, D, Edelman N, Richardson D, Lunt A, Llewellyn CD (2023) How are young people’s mental health related to their sexual health and substance use? A systematic review of UK literature. International Journal of Adolescent Medicine and Health (35) 2: 131-158.

Siddiq M, O’Flanagan H, Richardson D, Llewellyn C (2023) Factors associated with sexually transmitted shigella in men who have sex with men: a systematic review Sexually Transmitted Infections 99:58–63. https://doi:10.1136/sextrans-2022-055583

Lunt, A, Llewellyn C, Bayley, J, Nadarzynski T (2021) Sexual healthcare professionals’ views on the rapid provision of remote services at the beginning of the COVID-19 pandemic: a mixed-methods study  IJSA.  https://doi:10.1177/09564624211023018

Nadarzynski T, Frost M, Miller D, Wheldon CW, Wiernik B, Zou H, Richardson D, Marlow L, Smith H, Jones CJ & Llewellyn C. (2021) Vaccine acceptability, uptake and completion amongst men who have sex with men: A systematic review, meta-analysis and theoretical framework.  Vaccine. 39 3565-3581.

Tollemache N; Shrewsbury D; Llewellyn C (2021) Que(e)rying undergraduate medical curricula: a cross-sectional online survey of lesbian, gay, bisexual, transgender, and queer content inclusion in UK undergraduate medical education    BMC Medical Education 21 https://doi:10.1186/s12909-021-02532-y

Arthur S, Jamieson A, Cross H, Nambiar K, Llewellyn CD (2021) Medical students’ awareness of health issues, attitudes, and confidence about caring for lesbian, gay, bisexual and transgender patients: a cross-sectional survey. BMC Medical Education 21 (1):56-63. https://doi:10.1186/s12909-020-02409-6

Jamieson A, Cross H, Arthur S, Nambiar K, Llewellyn CD (2020) Sexual orientation and gender identity disclosure.  The Clinical Teacher

Cross, H & Llewellyn CD (2020) A decline in patient disclosure of heterosexuality in the English General Practice Patient Survey (GPPS): a longitudinal analysis of cross-sectional data Family Practice 37 (5) 661-667.

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