|International patient and physician consensus on a psoriatic arthritis core outcome set for clinical trials|
AM Orbai, M De Wit, P Mease, JA Shea, L Gossec, YY Leung, W Tillett, ...
Annals of the rheumatic diseases 76 (4), 673-680, 2017
|Smoking and delay to diagnosis are associated with poorer functional outcome in psoriatic arthritis|
W Tillett, D Jadon, G Shaddick, C Cavill, E Korendowych, CS De Vries, ...
Annals of the rheumatic diseases 72 (8), 1358-1361, 2013
|Work disability in psoriatic arthritis: a systematic review|
W Tillett, C de-Vries, NJ McHugh
Rheumatology 51 (2), 275-283, 2012
|The ClASsification for Psoriatic ARthritis (CASPAR) criteria–a retrospective feasibility, sensitivity, and specificity study|
W Tillett, L Costa, D Jadon, D Wallis, C Cavill, J McHUGH, ...
The Journal of rheumatology 39 (1), 154-156, 2012
|Updating the psoriatic arthritis (PsA) core domain set: a report from the PsA workshop at OMERACT 2016|
AM Orbai, M De Wit, PJ Mease, KC Duffin, M Elmamoun, W Tillett, ...
The Journal of rheumatology 44 (10), 1522-1528, 2017
|Group for Research and Assessment of Psoriasis and Psoriatic Arthritis/Outcome Measures in Rheumatology Consensus‐Based Recommendations and Research Agenda for Use of Composite …|
LC Coates, O FitzGerald, JF Merola, J Smolen, LJJ Van Mens, ...
Arthritis & rheumatology 70 (3), 345-355, 2018
|Factors influencing work disability in psoriatic arthritis: first results from a large UK multicentre study|
W Tillett, G Shaddick, A Askari, A Cooper, P Creamer, G Clunie, ...
Rheumatology 54 (1), 157-162, 2015
|Exploring ankylosing spondylitis-associated ERAP1, IL23R and IL12B gene polymorphisms in subphenotypes of psoriatic arthritis|
D Jadon, W Tillett, D Wallis, C Cavill, J Bowes, N Waldron, A Dixon, ...
Rheumatology 52 (2), 261-266, 2013
|Patient involvement in outcome measures for psoriatic arthritis|
W Tillett, A Adebajo, M Brooke, W Campbell, LC Coates, O FitzGerald, ...
Current rheumatology reports 16 (5), 418, 2014
|Enhanced patient involvement and the need to revise the core set—report from the psoriatic arthritis working group at OMERACT 2014|
W Tillett, L Eder, N Goel, M De Wit, DD Gladman, O FitzGerald, ...
The Journal of rheumatology 42 (11), 2198-2203, 2015
|Validation of the Psoriatic Arthritis Impact of Disease (PsAID) Questionnaire and its potential as a single-item outcome measure in clinical practice|
R Holland, W Tillett, E Korendowych, C Cavill, N Waldron, M Brooke, ...
Annals of the rheumatic diseases 77 (3), 343-347, 2018
|Report of the GRAPPA-OMERACT psoriatic arthritis working group from the GRAPPA 2015 annual meeting|
AM Orbai, PJ Mease, M De Wit, U Kalyoncu, W Campbell, W Tillett, L Eder, ...
The Journal of Rheumatology 43 (5), 965-969, 2016
|Risk of uveitis and inflammatory bowel disease in people with psoriatic arthritis: a population-based cohort study|
R Charlton, A Green, G Shaddick, J Snowball, A Nightingale, W Tillett, ...
Annals of the rheumatic diseases 77 (2), 277-280, 2018
|Feasibility, reliability, and sensitivity to change of four radiographic scoring methods in patients with psoriatic arthritis|
W Tillett, D Jadon, G Shaddick, G Robinson, R Sengupta, E Korendowych, ...
Arthritis care & research 66 (2), 311-317, 2014
|A systematic review of measurement properties of patient reported outcome measures in psoriatic arthritis: A GRAPPA-OMERACT initiative|
P Højgaard, L Klokker, AM Orbai, K Holmsted, EM Bartels, YY Leung, ...
Seminars in arthritis and rheumatism 47 (5), 654-665, 2018
|Interval between onset of psoriasis and psoriatic arthritis comparing the UK Clinical Practice Research Datalink with a hospital-based cohort|
W Tillett, R Charlton, A Nightingale, J Snowball, A Green, C Smith, ...
Rheumatology 56 (12), 2109-2113, 2017
|Psoriatic arthritis mutilans: characteristics and natural radiographic history|
DR Jadon, G Shaddick, W Tillett, E Korendowych, G Robinson, N Waldron, ...
The Journal of rheumatology 42 (7), 1169-1176, 2015
|Important treatment outcomes for patients with psoriatic arthritis: a multisite qualitative study|
E Dures, S Hewlett, J Lord, C Bowen, N McHugh, W Tillett, ...
The Patient-Patient-Centered Outcomes Research 10 (4), 455-462, 2017
|Defining outcome measures for psoriatic arthritis: a report from the GRAPPA-OMERACT working group|
A Ogdie, M De Wit, KC Duffin, W Campbell, J Chau, LC Coates, L Eder, ...
The Journal of rheumatology 44 (5), 697-700, 2017
|Patient participation in psoriasis and psoriatic arthritis outcome research: a report from the GRAPPA 2013 Annual Meeting|
M De Wit, W Campbell, O FitzGerald, DD Gladman, PS Helliwell, J James, ...
The Journal of Rheumatology 41 (6), 1206-1211, 2014