Arthritis Rheum. 2005 Jun 15;53(3):418-22.
Development of a foot impact scale for rheumatoid arthritis.
Helliwell P, Reay N, Gilworth G, Redmond A, Slade A, Tennant A, Woodburn J.
OBJECTIVE: To develop a new foot impact scale to assess foot status in rheumatoid arthritis (RA) using established qualitative methodology and the latest item response techniques (Rasch analysis). METHODS: Foot problems in RA were explored by conducting qualitative interviews that were then used to generate items for a new foot impact scale. Further validation was undertaken following postal surveys and Rasch analysis. RESULTS: Analysis of the first postal survey (n = 192 responses) produced a 63-item binary response, 4-subscale instrument. The 4 subscales covered the domains impairment, activities, participation, and footwear. Following test-retest postal surveys and additional analysis, the instrument was reduced to a 2 subscale, 51-item questionnaire covering the domains of impairments/shoes and activities/participation. Initial results of these subscales indicate good psychometric properties, external validity, and test-retest reliability. CONCLUSION: A foot impact scale to assess the impact of RA and to measure the effect of interventions has been developed. The 2 scales comprising the instrument demonstrate good psychometric properties.
Dear colleagues,
This instrument is now available for general clinical and non-commercial clinical research use. Please contact:
The LFIS-RA Administrative Manager,
The University of Leeds,
36 Clarendon Road, Leeds,
England, LS2 9NZ.
Fax: 0113 243 0366.
Email:
V.E.Lane@leeds.ac.uk
Best wishes,
Jim Woodburn
MRC Clinician Scientist Fellow,
Honorary Podiatrist,
University of Leeds,
School of Medicine,
Academic Unit of Musculoskeletal Medicine,
36 Clarendon Road,
Leeds, LS2 9NZ,
UK.
Ph: +44 113 343 4938
e:
j.woodburn@leeds.ac.uk
Leeds Foot Impact Scale- RA
Linear Mode
