Development of an assessment tool for dactylitis in patients with psoriatic arthritis

Philip S. Helliwell, Jill Firth, Gamal H. Ibrahim, Richard D. Melsom, Irfan Shah, Deborah Turner

Research output: Contribution to journalArticle

Abstract

Psoriatic arthritis (PsA) is characterized by inflammatory arthritis in the presence of psoriasis. Certain clinical features help characterize this disorder, one of which is dactylitis. Hitherto an instrument for quantifying dactylitis has not been developed. Adactylitis score sheet was developed. The score is a function of finger circumference and tenderness, assessed and summed across all dactylitic digits. Initial results were obtained on a small sample of patients attending clinics. Inter and intraobserver agreement on the presence of dactylitis using kappa agreement statistics, and the validity and reliability of the instrument, using intraclass correlation coefficients (ICC), were assessed in a further group of 7 patients with PsA. A new method for quantifying dactylitis based on digital circumference and tenderness has been described. This instrument has shown good inter and intraobserver reliability. Further studies of responsiveness are now required.

Original languageEnglish
JournalJournal of Rheumatology
Publication statusPublished - 1 Sep 2005

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Psoriatic Arthritis
Psoriasis
Reproducibility of Results
Fingers
Arthritis

Keywords

  • dactylitis
  • rheumatology
  • arthritis

Cite this

Helliwell, P. S., Firth, J., Ibrahim, G. H., Melsom, R. D., Shah, I., & Turner, D. (2005). Development of an assessment tool for dactylitis in patients with psoriatic arthritis. Journal of Rheumatology.
Helliwell, Philip S. ; Firth, Jill ; Ibrahim, Gamal H. ; Melsom, Richard D. ; Shah, Irfan ; Turner, Deborah. / Development of an assessment tool for dactylitis in patients with psoriatic arthritis. In: Journal of Rheumatology. 2005.
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abstract = "Psoriatic arthritis (PsA) is characterized by inflammatory arthritis in the presence of psoriasis. Certain clinical features help characterize this disorder, one of which is dactylitis. Hitherto an instrument for quantifying dactylitis has not been developed. Adactylitis score sheet was developed. The score is a function of finger circumference and tenderness, assessed and summed across all dactylitic digits. Initial results were obtained on a small sample of patients attending clinics. Inter and intraobserver agreement on the presence of dactylitis using kappa agreement statistics, and the validity and reliability of the instrument, using intraclass correlation coefficients (ICC), were assessed in a further group of 7 patients with PsA. A new method for quantifying dactylitis based on digital circumference and tenderness has been described. This instrument has shown good inter and intraobserver reliability. Further studies of responsiveness are now required.",
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Helliwell, PS, Firth, J, Ibrahim, GH, Melsom, RD, Shah, I & Turner, D 2005, 'Development of an assessment tool for dactylitis in patients with psoriatic arthritis', Journal of Rheumatology.

Development of an assessment tool for dactylitis in patients with psoriatic arthritis. / Helliwell, Philip S.; Firth, Jill; Ibrahim, Gamal H.; Melsom, Richard D.; Shah, Irfan; Turner, Deborah.

In: Journal of Rheumatology, 01.09.2005.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Development of an assessment tool for dactylitis in patients with psoriatic arthritis

AU - Helliwell, Philip S.

AU - Firth, Jill

AU - Ibrahim, Gamal H.

AU - Melsom, Richard D.

AU - Shah, Irfan

AU - Turner, Deborah

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Y1 - 2005/9/1

N2 - Psoriatic arthritis (PsA) is characterized by inflammatory arthritis in the presence of psoriasis. Certain clinical features help characterize this disorder, one of which is dactylitis. Hitherto an instrument for quantifying dactylitis has not been developed. Adactylitis score sheet was developed. The score is a function of finger circumference and tenderness, assessed and summed across all dactylitic digits. Initial results were obtained on a small sample of patients attending clinics. Inter and intraobserver agreement on the presence of dactylitis using kappa agreement statistics, and the validity and reliability of the instrument, using intraclass correlation coefficients (ICC), were assessed in a further group of 7 patients with PsA. A new method for quantifying dactylitis based on digital circumference and tenderness has been described. This instrument has shown good inter and intraobserver reliability. Further studies of responsiveness are now required.

AB - Psoriatic arthritis (PsA) is characterized by inflammatory arthritis in the presence of psoriasis. Certain clinical features help characterize this disorder, one of which is dactylitis. Hitherto an instrument for quantifying dactylitis has not been developed. Adactylitis score sheet was developed. The score is a function of finger circumference and tenderness, assessed and summed across all dactylitic digits. Initial results were obtained on a small sample of patients attending clinics. Inter and intraobserver agreement on the presence of dactylitis using kappa agreement statistics, and the validity and reliability of the instrument, using intraclass correlation coefficients (ICC), were assessed in a further group of 7 patients with PsA. A new method for quantifying dactylitis based on digital circumference and tenderness has been described. This instrument has shown good inter and intraobserver reliability. Further studies of responsiveness are now required.

KW - dactylitis

KW - rheumatology

KW - arthritis

M3 - Article

JO - Journal of Rheumatology

JF - Journal of Rheumatology

SN - 0315-162X

ER -

Helliwell PS, Firth J, Ibrahim GH, Melsom RD, Shah I, Turner D. Development of an assessment tool for dactylitis in patients with psoriatic arthritis. Journal of Rheumatology. 2005 Sep 1.