William Tillett

Consultant Rheumatologist, Senior Lecturer, Dr

Accepting PhD Students

20122020
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Research Output 2012 2019

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Article
2019

A Threshold of Meaning for Work Disability Improvement in Psoriatic Arthritis Measured by the Work Productivity and Activity Impairment Questionnaire

Tillett, W., Lin, C-Y., Zbrozek, A., Sprabery, A. T. & Birt, J., 1 Jun 2019, In : Rheumatology and therapy. p. 1-13

Research output: Contribution to journalArticle

Open Access

Diagnosis and initial management in psoriatic arthritis: a qualitative study with patients

Dures, E., Bowen, C., Brooke, M., Lord, J., Tillett, W., McHugh, N. & Hewlett, S., 26 Aug 2019, In : Rheumatology Advances in Practice. 3, 2, rkz022.

Research output: Contribution to journalArticle

Open Access
2 Citations (Scopus)
6 Downloads (Pure)

Endorsement of the 66/68 joint count for the measurement of musculoskeletal disease activity: OMERACT 2018 Psoriatic Arthritis workshop report

Duarte-García, A., Leung, Y. Y., Coates, L. C., Beaton, D., Christensen, R., Craig, E. T., de Wit, M., Eder, L., Fallon, L., FitzGerald, O., Gladman, D. D., Goel, N., Holland, R., Lindsay, C., Maxwell, L., Mease, P., Orbai, A. M., Shea, B., Strand, V., Veale, D. J. & 2 others, Tillett, W. & Ogdie, A., 15 Feb 2019, In : The Journal of Rheumatology.

Research output: Contribution to journalArticle

Open Access
File

Evaluation of the Economic Burden of Psoriatic Arthritis and the Relationship Between Functional Status and Healthcare Costs

McHugh, N., Maguire, Á., Handel, I., Tillett, W., Morris, J., Hawkins, N., Cavill, C., Korendowych, E. & Mughal, F., 31 Aug 2019, In : The Journal of Rheumatology. 46, 8, 190083.

Research output: Contribution to journalArticle

Modifiable risk factors and the development of psoriatic arthritis in people with psoriasis

PROMPT Study Group, 18 Jun 2019, In : British Journal of Dermatology.

Research output: Contribution to journalArticle

Psoriatic nail dystrophy is associated with erosive disease in the distal interphalangeal joints in psoriatic arthritis: a retrospective cohort study

Antony, A., Allard, A., Rambojun, A., Lovell, C. R., Shaddick, G., Robinson, G., Jadon, D. R., Holland, R., Cavill, C., Korendowych, E., McHugh, N. J. & Tillett, W., 1 Mar 2019, In : The Journal of Rheumatology.

Research output: Contribution to journalArticle

1 Citation (Scopus)
1 Downloads (Pure)

Risk of type 2 diabetes and cardiovascular disease in an incident cohort of people with psoriatic arthritis: a population-based cohort study

PROMPT Study Group, 1 Jan 2019, In : Rheumatology. 58, 1, p. 144-148 5 p.

Research output: Contribution to journalArticle

Open Access
File
Psoriatic Arthritis
Type 2 Diabetes Mellitus
Psoriasis
Cohort Studies
Cardiovascular Diseases

The GRAPPA-OMERACT Psoriatic Arthritis Working Group at the 2018 Annual Meeting: Report and Plan for Completing the Core Outcome Measurement Set

Leung, Y. Y., Orbai, A-M., Ogdie, A., Coates, L. C., de Wit, M., Eder, L., Gladman, D. D., Goel, N., Mease, P. J., Strand, V., FitzGerald, O. & Tillett, W., 1 Jun 2019, In : The Journal of rheumatology. Supplement. 95, p. 33-37 5 p.

Research output: Contribution to journalArticle

2018
2 Citations (Scopus)
7 Downloads (Pure)

Content and Face Validity and Feasibility of 5 Candidate Instruments for Psoriatic Arthritis Randomized Controlled Trials: The PsA OMERACT Core Set Workshop at the GRAPPA 2017 Annual Meeting

Holland, R., Tillett, W., Ogdie, A., Leung, Y. Y., Gladman, D. D., Callis Duffin, K., Coates, L. C., Mease, P. J., Eder, L., Strand, V., Elmamoun, M., Højgaard, P., Chau, J., de Wit, M., Goel, N., Lindsay, C. A., FitzGerald, O., Shea, B., Beaton, D. & Orbai, A-M., 1 Jun 2018, In : The Journal of rheumatology. Supplement. 94, p. 17-25 9 p.

Research output: Contribution to journalArticle

Open Access
File
Psoriatic Arthritis
Psoriasis
Reproducibility of Results
Randomized Controlled Trials
Education

Exploring the illness representations of people with psoriatic arthritis: A secondary analysis of focus group data

On behalf of the PROMPT Study Group, 1 Jul 2018, In : Rheumatology Advances in Practice. 2, 2, p. 1-7 7 p.

Research output: Contribution to journalArticle

Open Access
14 Citations (Scopus)
15 Downloads (Pure)

GRAPPA-OMERACT consensus-based recommendations and research agenda for use of composite measures and treatment targets in PsA

Coates, L. C., Fitzgerald, O., Merola, J. F., Smolen, J., van Mens, L. J. J., Bertheussen, H., Boehncke, W-H., Callis Duffin, K., Campbell, W., de Wit, M., Gladman, D. D., Gottlieb, A., James, J., Kavanaugh, A. F., Kristensen, L. E., Kvien, T. K., Luger, T., McHugh, N., Mease, P. J., Nash, P. & 6 others, Ogdie, A., Rosen, C. F., Strand, V., Tillett, W., Veale, D. J. & Helliwell, P. S., 31 Mar 2018, In : Arthritis & Rheumatology. 70, 3, p. 345-355

Research output: Contribution to journalArticle

Open Access
File
Psoriatic Arthritis
Consensus
Research
Therapeutics
Musculoskeletal Diseases
1 Citation (Scopus)

PsAID12 Provisionally Endorsed at OMERACT 2018 as Core Outcome Measure to Assess Psoriatic Arthritis-specific Health-related Quality of Life in Clinical Trials

Orbai, A-M., Holland, R., Leung, Y. Y., Tillett, W., Goel, N., Christensen, R., McHugh, N., Gossec, L., de Wit, M., Højgaard, P., Coates, L. C., Mease, P. J., Birt, J., Fallon, L., FitzGerald, O., Ogdie, A., Shea, B., Strand, V., Callis Duffin, K., Tugwell, P. & 2 others, Beaton, D. & Gladman, D. D., 15 Dec 2018, In : The Journal of Rheumatology. 46, 1, p. 1-6 6 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)
31 Downloads (Pure)
Open Access
File
2 Citations (Scopus)
4 Downloads (Pure)

The Benefits and Challenges of Setting Up a Longitudinal Psoriatic Arthritis Database

Gladman, D. D., Coates, L. C., Jadon, D. R., Tillett, W., Mease, P. J. & Vis, M., 1 Jun 2018, In : The Journal of rheumatology. Supplement. 94, p. 26-29 4 p.

Research output: Contribution to journalArticle

Open Access
File
Psoriatic Arthritis
Psoriasis
Databases
Research
Public Opinion
2 Downloads (Pure)

Trajectory of radiographic change over a decade: the effect of transition from conventional synthetic disease-modifying antirheumatic drugs to anti-tumour necrosis factor in patients with psoriatic arthritis

Allard, A., Antony, A., Shaddick, G., Jadon, D. R., Cavill, C., Robinson, G., Korendowych, E., McHugh, N. & Tillett, W., 20 Sep 2018, In : Rheumatology. p. 1 - 5 5 p.

Research output: Contribution to journalArticle

Open Access
File
Psoriatic Arthritis
Antirheumatic Agents
Tumor Necrosis Factor-alpha
Baths
Sample Size
7 Citations (Scopus)
23 Downloads (Pure)

Validation of the Psoriatic Arthritis Impact of Disease (PsAID) Questionnaire and its potential as a single-item outcome measure in clinical practice

Holland, R., Tillett, W., Korendowych, E., Cavill, C., Waldron, N., Brooke, M. & McHugh, N. J., 12 Feb 2018, In : Annals of the Rheumatic Diseases. 77, 3, p. 1 - 5 5 p.

Research output: Contribution to journalArticle

Open Access
File
Psoriatic Arthritis
Outcome Assessment (Health Care)
PROM
Surveys and Questionnaires
4 Citations (Scopus)
15 Downloads (Pure)

Value of the Routine Assessment of Patient Index Data 3 in Patients With Psoriatic Arthritis: Results From a Tight-Control Clinical Trial and an Observational Cohort

Coates, L. C., Tillett, W., Shaddick, G., Pincus, T., Kavanaugh, A. & Helliwell, P. S., 1 Aug 2018, In : Arthritis Care and Research. 70, 8, p. 1198-1205 8 p.

Research output: Contribution to journalArticle

Open Access
File
Psoriatic Arthritis
Clinical Trials
Pain Measurement
Rheumatic Diseases
Visual Analog Scale
4 Downloads (Pure)

Work Disability and the Cost-effectiveness of Drugs to Treat Rheumatic Diseases - Time for a New Dialogue?

Tillett, W. & Bojke, L., 1 Aug 2018, In : The Journal of Rheumatology. 45, 8, p. 1075-1077 3 p.

Research output: Contribution to journalArticle

Open Access
File
2017
4 Citations (Scopus)
54 Downloads (Pure)

A Multicenter Nominal Group Study to Rank Outcomes Important to Patients, and Their Representation in Existing Composite Outcome Measures for Psoriatic Arthritis

Tillett, W., Dures, E., Hewlett, S., Helliwell, P. S., Fitzgerald, O., Brooke, M., James, J., Lord, J., Bowen, C., de Wit, M., Orbai, A-M., McHugh, N. & PROMPT study group, 4 Oct 2017, In : The Journal of Rheumatology. 44, 10, p. 1445-1452

Research output: Contribution to journalArticle

Open Access
File
Psoriatic Arthritis
Outcome Assessment (Health Care)
Fatigue
Pain
Group Processes

Composite Measures of Impact and Activity in Psoriatic Arthritis: A Conceptual Framework

Tillett, W., Mar 2017, In : The Journal of Rheumatology. 44, 3, p. 268-270 3 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)

Defining Outcome Measures for Psoriatic Arthritis: A Report from the GRAPPA-OMERACT Working Group

Ogdie, A., de Wit, M., Callis Duffin, K., Campbell, W., Chau, J., Coates, L. C., Eder, L., Elmamoun, M., FitzGerald, O., Gladman, D. D., Goel, N., James, J. P., Kalyoncu, U., Latella, J., Lindsay, C., Mease, P. J., O'Sullivan, D., Steinkoenig, I., Strand, V., Tillett, W. & 1 others, Orbai, A-M., 1 May 2017, In : The Journal of Rheumatology. 44, 5, p. 697-700 4 p.

Research output: Contribution to journalArticle

Psoriatic Arthritis
Psoriasis
Outcome Assessment (Health Care)
Research
Rheumatology
5 Citations (Scopus)
62 Downloads (Pure)

Effect of anti-TNF and conventional synthetic disease-modifying anti-rheumatic drug treatment on work disability and clinical outcome in a multicentre observational cohort study of psoriatic arthritis

Tillett, W., Shaddick, G., Jobling, A., Askari, A., Cooper, A., Creamer, P., Clunie, G., Helliwell, P. S., James, J., Kay, L., Korendowych, E., Lane, S., Packham, J., Shaban, R., Thomas, M. L., Williamson, L. & McHugh, N., 1 Apr 2017, In : Rheumatology. 56, 4, p. 603-612

Research output: Contribution to journalArticle

Open Access
File
Psoriatic Arthritis
Antirheumatic Agents
Observational Studies
Cohort Studies
Efficiency
10 Citations (Scopus)
88 Downloads (Pure)

Important treatment outcomes for patients with psoriatic arthritis: a multisitequalitative study

Dures, E., Hewlett, S., Lord, J., Bowen, C., McHugh, N. & Tillett, W., 22 Feb 2017, In : The patient.

Research output: Contribution to journalArticle

Open Access
File
Psoriatic Arthritis
Quality of Life
Harm Reduction
Pain
Physical Fitness
43 Citations (Scopus)

International patient and physician consensus on a psoriatic arthritis core outcome set for clinical trials

Orbai, A-M., de Wit, M., Mease, P., Shea, J. A., Gossec, L., Leung, Y. Y., Tillett, W., Elmamoun, M., Callis Duffin, K., Campbell, W., Christensen, R., Coates, L., Dures, E., Eder, L., FitzGerald, O., Gladman, D., Goel, N., Grieb, S. D., Hewlett, S., Hoejgaard, P. & 7 others, Kalyoncu, U., Lindsay, C., McHugh, N., Shea, B., Steinkoenig, I., Strand, V. & Ogdie, A., 1 Apr 2017, In : Annals of the Rheumatic Diseases. 76, 4, p. 673-680

Research output: Contribution to journalArticle

Open Access
Psoriatic Arthritis
Consensus
Clinical Trials
Physicians
Skin
10 Downloads (Pure)
Open Access
File
Psoriatic Arthritis
Psoriasis
Baths
Research
Secondary Care
15 Downloads (Pure)

Updating the Psoriatic Arthritis (PsA) core domain set: A report from the PsA workshop at OMERACT 2016

Orbai, A-M., de Wit, M., Mease, P. J., Callis Duffin, K., Elmamoun, M., Tillett, W., Campbell, W., FitzGerald, O., Gladman, D. D., Goel, N., Gossec, L., Hoejgaard, P., Leung, Y. Y., Lindsay, C., Strand, V., van der Heijde, D. M., Shea, B., Christensen, R., Coates, L., Eder, L. & 4 others, McHugh, N., Kalyoncu, U., Steinkoenig, I. & Ogdie, A., 1 Oct 2017, In : The Journal of Rheumatology. 44, 10, p. 1522-1528 160904.

Research output: Contribution to journalArticle

File
Psoriatic Arthritis
Education
Observational Studies
Longitudinal Studies
Randomized Controlled Trials
2016
4 Citations (Scopus)

Let's Talk about Inclusion: A Report on Patient Research Partner Involvement in the GRAPPA 2015 Annual Meeting

Campbell, W., Coates, L. C., Gladman, D. D., James, J., Lindsay, C. A., MacDonald, R., Moverley, A. R., Ogdie, A., Orbai, A-M., O'Sullivan, D., Parkinson, A., Steinkoenig, I., Tillett, W. & Goel, N., May 2016, In : The Journal of Rheumatology. 43, 5, p. 970-973 4 p.

Research output: Contribution to journalArticle

Psoriatic Arthritis
Psoriasis
Research
Outcome Assessment (Health Care)
2 Citations (Scopus)
76 Downloads (Pure)
File
Psoriatic Arthritis
Observational Studies
Longitudinal Studies
Joints
X-Rays
15 Citations (Scopus)
64 Downloads (Pure)

Report of the GRAPPA-OMERACT Psoriatic Arthritis Working Group from the GRAPPA 2015 Annual Meeting

Orbai, A-M., Mease, P. J., de Wit, M., Kalyoncu, U., Campbell, W., Tillett, W., Eder, L., Elmamoun, M., FitzGerald, O., Gladman, D. D., Goel, N., Gossec, L., Lindsay, C. A., Steinkoenig, I., Helliwell, P. S., McHugh, N. J., Strand, V. & Ogdie, A., May 2016, In : The Journal of Rheumatology. 43, 5, p. 965-969 5 p.

Research output: Contribution to journalArticle

Open Access
File
Psoriatic Arthritis
Qualitative Research
Research
Physicians
2015
8 Citations (Scopus)

Building bridges between researchers and patient research partners: A report from the grappa 2014 annual meeting

De Wit, M., Campbell, W., Orbai, A. M., Tillett, W., Fitzgerald, O., Gladman, D. D., Lindsay, C. A., McHugh, N. J., Mease, P. J., O'Sullivan, D., Steinkoenig, I., Windisch, G. & Goel, N., 1 Jun 2015, In : Journal of Rheumatology. 42, 6, p. 1021-1026 6 p.

Research output: Contribution to journalArticle

Research Personnel
Psoriatic Arthritis
Research
Psoriasis
Group Processes
21 Citations (Scopus)
91 Downloads (Pure)

Enhanced Patient Involvement and the Need to Revise the Core Set - Report from the Psoriatic Arthritis Working Group at OMERACT 2014

Tillett, W., Eder, L., Goel, N., De Wit, M., Gladman, D. D., FitzGerald, O., Campbell, W., Helliwell, P. S., Gossec, L., Orbai, A-M., Ogdie, A., Strand, V., McHugh, N. J. & Mease, P. J., 1 May 2015, In : The Journal of Rheumatology.

Research output: Contribution to journalArticle

File
Patient Participation
Psoriatic Arthritis
Psoriasis
Research
Outcome Assessment (Health Care)
23 Citations (Scopus)
153 Downloads (Pure)

Factors influencing work disability in psoriatic arthritis: first results from a large UK multicentre study

Tillett, W., Shaddick, G., Askari, A., Cooper, A., Creamer, P., Clunie, G., Helliwell, P. S., Kay, L., Korendowych, E., Lane, S., Packham, J., Shaban, R., Williamson, L. & McHugh, N., 1 Jan 2015, In : Rheumatology. 54, 1, p. 157-162

Research output: Contribution to journalArticle

File
Psoriatic Arthritis
Multicenter Studies
Demography
3 Citations (Scopus)

GRAPPA trainees symposium 2014: A report from the grappa 2014 annual meeting

Eder, L., Tillett, W. & Ritchlin, C. T., 1 Jun 2015, In : Journal of Rheumatology. 42, 6, p. 1016-1020 5 p.

Research output: Contribution to journalArticle

Psoriatic Arthritis
Psoriasis
Posters
Group Processes
Rheumatology
11 Citations (Scopus)
61 Downloads (Pure)

Psoriatic Arthritis Mutilans: Characteristics and Natural Radiographic History

Jadon, D. R., Shaddick, G., Tillett, W., Korendowych, E., Robinson, G., Waldron, N., Cavill, C. & McHugh, N. J., 15 May 2015, In : The Journal of Rheumatology.

Research output: Contribution to journalArticle

Open Access
File
Psoriatic Arthritis
Natural History
Osteolysis
Antirheumatic Agents
Nails
5 Citations (Scopus)
58 Downloads (Pure)

Review of the psoriatic arthritis working group at OMERACT 12: a report from the GRAPPA 2014 annual meeting

Tillett, W., Eder, L., Goel, N., De Wit, M., Ogdie, A., Orbai, A. M., Campbell, W., Fitzgerald, O., McHugh, N. J., Gladman, D. D., Strand, V. & Mease, P. J., 1 Jun 2015, In : Journal of Rheumatology. 42, 6, p. 1048-1051 4 p.

Research output: Contribution to journalArticle

File
Psoriatic Arthritis
Psoriasis
Research
Outcome Assessment (Health Care)
Patient Participation
2014
11 Citations (Scopus)
93 Downloads (Pure)

Feasibility, reliability, and sensitivity to change of four radiographic scoring methods in patients with psoriatic arthritis

Tillett, W., Jadon, D., Shaddick, G., Robinson, G., Sengupta, R., Korendowych, E., de Vries, C. S. & McHugh, N. J., Feb 2014, In : Arthritis Care and Research. 66, 2, p. 311-317 7 p.

Research output: Contribution to journalArticle

File
Psoriatic Arthritis
Research Design
Foot
Hand

Patient information leaflets: a study of patient and physician satisfaction

Becker, K., Tillett, W., Price, E., Collins, D. & Williamson, L., Dec 2014, In : JCR : Journal of Clinical Rheumatology . 20, 8, p. 453

Research output: Contribution to journalArticle

23 Citations (Scopus)
91 Downloads (Pure)

Patient involvement in outcome measures for psoriatic arthritis

Tillett, W., Adebajo, A., Brooke, M., Campbell, W., Coates, L. C., Fitzgerald, O., Gossec, L., Helliwell, P., Hewlett, S., James, J., Minnock, P., Reast, A., O'Sullivan, D., de Wit, M. & McHugh, N., May 2014, In : Current Rheumatology Reports. 16, 5, p. 1-10 10 p.

Research output: Contribution to journalArticle

File
Patient Participation
Psoriatic Arthritis
Outcome Assessment (Health Care)
Arthritis
Rheumatoid Arthritis
12 Citations (Scopus)

Patient Participation in Psoriasis and Psoriatic Arthritis Outcome Research: A Report from the GRAPPA 2013 Annual Meeting

de Wit, M., Campbell, W., FitzGerald, O., Gladman, D. D., Helliwell, P. S., James, J., Lindsay, C., MacDonald, R., McHugh, N. J., Mease, P. J., Orbai, A-M., Palominos, P., Parkinson, A., Tillett, W. & Goel, N., Jun 2014, In : The Journal of Rheumatology. 41, 6, p. 1206-11 6 p.

Research output: Contribution to journalArticle

Patient Participation
Psoriatic Arthritis
Psoriasis
Outcome Assessment (Health Care)
Research
2013
31 Citations (Scopus)

Exploring ankylosing spondylitis-associated ERAP1, IL23R and IL12B gene polymorphisms in subphenotypes of psoriatic arthritis

Jadon, D., Tillett, W., Wallis, D., Cavill, C., Bowes, J., Waldron, N., Dixon, A., Sengupta, R., Barton, A., Korendowych, E. & McHugh, N. J., Feb 2013, In : Rheumatology. 52, 2, p. 261-6 6 p.

Research output: Contribution to journalArticle

HLA-B27 Antigen
Psoriatic Arthritis
Ankylosing Spondylitis
Genes
66 Citations (Scopus)

Smoking and delay to diagnosis are associated with poorer functional outcome in psoriatic arthritis

Tillett, W., Jadon, D., Shaddick, G., Cavill, C., Korendowych, E., De Vries, C. S. & McHugh, N., Aug 2013, In : Annals of the Rheumatic Diseases. 72, 8, p. 1358-1361 3 p.

Research output: Contribution to journalArticle

Psoriatic Arthritis
Smoking
Health
Baths
Regression analysis
57 Citations (Scopus)

The 2012 BSR and BHPR guideline for the treatment of psoriatic arthritis with biologics

Coates, L. C., Tillett, W., Chandler, D., Helliwell, P. S., Korendowych, E., Kyle, S., McInnes, I. B., Oliver, S., Ormerod, A., Smith, C., Symmons, D., Waldron, N. & McHugh, N. J., 2013, In : Rheumatology. 52, 10, p. 1754-1757 4 p.

Research output: Contribution to journalArticle

2012
4 Citations (Scopus)
63 Downloads (Pure)

Joint count reliability in psoriatic arthritis observational trials: an unreported problem

Tillett, W., Shaddick, G., Korendowych, E., De Vries, C. S. & McHugh, N., 2012, In : Rheumatology. 51, 7, p. 1333-1334

Research output: Contribution to journalArticle

File
52 Citations (Scopus)

The ClASsification for Psoriatic ARthritis (CASPAR) criteria - A retrospective feasibility, sensitivity, and specificity study

Tillett, W., Costa, L., Jadon, D., Wallis, D., Cavill, C., McHugh, J., Korendowych, E. & McHugh, N. J., Jan 2012, In : Journal of Rheumatology. 39, 1, p. 154-156 3 p.

Research output: Contribution to journalArticle

Psoriatic Arthritis
Sensitivity and Specificity
Rheumatology
Arthritis
Reactive Arthritis
8 Citations (Scopus)

Treatment algorithms for early psoriatic arthritis: Do they depend on disease phenotype?

Tillett, W. & McHugh, N., 1 Aug 2012, In : Current Rheumatology Reports. 14, 4, p. 334-342 9 p.

Research output: Contribution to journalArticle

Psoriatic Arthritis
Phenotype
Nail Diseases
Joint Diseases
Therapeutics
52 Citations (Scopus)

Work disability in psoriatic arthritis: a systematic review

Tillett, W., De Vries, C. & McHugh, N. J., Feb 2012, In : Rheumatology. 51, 2, p. 275-283 9 p.

Research output: Contribution to journalArticle

Psoriatic Arthritis
Publications
Unemployment
Rheumatic Diseases
Psoriasis