Prevalence, comorbidities and mortality of generalized pustular psoriasis: A literature review
Jörg C. Prinz, Siew Eng Choon, Christopher E. M. Griffiths, Joseph F. Merola, Akimichi Morita ,Darren M. Ashcroft, Manuelle Viguier.
Journal of the European Academy for Dermatology and Venereology, 2022

Incidence, prevalence, and mortality of people with psoriasis and psoriatic arthritis in Taiwan: A nationwide cohort study
Ireny Y.K. Iskandar, Teng-Chou Chen, Li-Chia Chen, Meng-Sui Lee, Yen-Yun Yang, Ting-Chun Wang, Yu-Chun Hsieh, K. Arnold Chan, Christopher E.M. Griffiths, Darren M. Ashcroft.
Acta Dermato-Venereologica, 2022 

Incidence and prevalence of psoriasis in multi-ethnic Johor Bahru, Malaysia: a population-based cohort study using electronic health data routinely captured in the Teleprimary Care (TPC) clinical information system from 2010 to 2020
Siew Eng Choon, Alison K. Wright, Christopher E.M. Griffiths, Kwee Eng Tey, Kit Wan Wong, Yoong Wei Lee, Ushananthiny Suvelayutnan, Jeevitha Mariapun, Darren M. 
British Journal of Dermatology, 2022

Mapping opportunities for the earlier diagnosis of psoriasis in primary care settings in the UK
Maha Abo-Tabik, Rosa Parisi, Catharine Morgan, Sarah Willis, Christopher EM Griffiths, Darren Ashcroft.
British Journal of General Practice, 2022

Limitations of Using Questionnaires for Assessing the Prevalence of Psoriasis and Atopic Dermatitis Among Adults
Lea K. Nymand, MSc1; Yuki M. F. Andersen, MD, PhD1; Jacob P. Thyssen, MD, PhD, DMSc1; Alexander Egeberg, MD, PhD1
JAMA Dermatology, 2021

The incidence of psoriasis in Chile: an analysis of the National Waiting List Repository
C. Lecaros, J. Dunstan, F. Villena, D. M. Ashcroft, R. Parisi, C. E. M. Griffiths, S. Härtel, J. T. Maul, C. De la Cruz
Clinical and Experimental Dermatology, 2021

Concordance and timing in recording cancer events in primary care, hospital and mortality records for patients with and without psoriasis: a population-based cohort study
Alex M. Trafford, Rosa Parisi, Martin K. Rutter, Evangelos Kontopantelis, Christopher E. M. Griffiths, Darren M. Ashcroft.
Public Library of Science, 2021,

Psoriasis Prevalence in Adults in the United States
April W. Armstrong, MD, MPH1; Manan D. Mehta, BS; Clayton W. Schupp, PhD; George C. Gondo, MA; Stacie J. Bell, PhD; Christopher E. M. Griffiths, MD.
JAMA Dermatology, 2021; doi:10.1001/jamadermatol.2021.2007

Development of clinical diagnostic criteria for chronic plaque psoriasis: an international e‐Delphi study
Abo-Tabik M, Parisi R, Willis S.C, Griffiths C.E.M, Ashcroft D.M
British Journal of Dermatology, 2021; doi:10.1111/bjd.20096

Systematic review examining changes over time and variation in the incidence and prevalence of psoriasis by age and gender
Iskandar I.Y.K, Parisi R, Griffiths C.E.M, Ashcroft DM.
British Journal of Dermatology 2021;184(2): 243-258

National, regional, and worldwide epidemiology of psoriasis: systematic analysis and modelling study
Parisi R, Iskandar IY, Kontopantelis E, Augustin M, Griffiths CEM, Ashcroft DM.
BMJ 2020; 28;369:m1590

Psoriasis and the risk of developing or dying from cancer: a systematic review and meta-analysis of observational studies
Trafford, AM, Parisi, R, Kontopantelis, E, Griffiths, CEM, Ashcroft, DM.
JAMA Dermatology 2019; 155(12):1390-1403

Incidence and prevalence of psoriasis in Israel 2011-2017
Schonmann Y, Ashcroft DM, Iskandar IYK, Parisi R, Sde-Or S, Comaneshter D, Batat E, Shani M, Vinker S, Griffiths CEM, Cohen AD.
Journal of the European Academy of Dermatology & Venereology 2019; 33: 2075-2081

Psychiatric morbidity and suicidal behaviour in psoriasis: a primary care cohort study
Parisi R, Webb RT, Kleyn CE, Carr MJ, Kapur N, Griffiths CEM, Ashcroft DM.
British Journal of Dermatology 2019; 180: 108-115

Alcohol-related mortality in patients with psoriasis: a population-based cohort study
Parisi R, Webb RT, Carr MJ, Moriarty KJ, Kleyn CE, Griffiths CEM, Ashcroft DM.
JAMA Dermatology 2017; 153(12): 1256-1262

The global state of psoriasis disease epidemiology: a workshop report
Griffiths CEM, van der Walt JM, Ashcroft DM, Flohr C, Naldi L, Nijsten T, Augustin M.
British Journal of Dermatology 2017; 177(1): e4-e7

Incidence, prevalence and mortality of patients with psoriasis: a UK population-based cohort study
Springate DA, Parisi R, Kontopantelis E, Reeves D, Griffiths CEM, Ashcroft DM.
British Journal of Dermatology 2017; 176: 650-658