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Factor structure of the Shoulder Pain and Disability Index in patients with adhesive capsulitis.
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- Factor structure of the Shoulder Pain and Disability Index in patients with adhesive capsulitis.
- BMC musculoskeletal disorders 2008, 9:103
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|dc.contributor.author||Tveitå, Einar Kristian||-|
|dc.contributor.author||Ekeberg, Ole Marius||-|
|dc.contributor.author||Juel, Niels Gunnar||-|
|dc.identifier.citation||BMC musculoskeletal disorders 2008, 9:103||en|
|dc.description.abstract||BACKGROUND: The Shoulder Pain and Disability Index (SPADI) is a self-administered questionnaire that aims to measure pain and disability associated with shoulder disease. It consists of a pain section and a disability section with 13 items being responded to on visual analogue scales. Few researchers have investigated SPADI validity in specified diagnostic groups, although the selection of an evaluative instrument should be based on evidence of validity in the target patient group. The aim of the present study was to investigate factor structure of the SPADI in a study population of patients with adhesive capsulitis. METHODS: The questionnaire was administered to 191 patients with adhesive capsulitis. Descriptive statistics for items and a comparison of scores for the two subscales were produced. Internal consistency was analyzed by use of the Cronbach alpha and a principal components analysis with varimax rotation was conducted. Study design was cross-sectional. RESULTS: Two factors were extracted, but the factor structure failed to support the original division of items into separate pain and disability sections. CONCLUSION: We found minimal evidence to justify the use of separate subscales for pain and disability. It is our impression that the SPADI should be viewed as essentially unidimensional in patients with adhesive capsulitis.||en|
|dc.subject||VDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Fysikalsk medisin og rehabilitering: 764||en|
|dc.subject.mesh||Factor Analysis, Statistical||en|
|dc.subject.mesh||Principal Component Analysis||en|
|dc.subject.mesh||Range of Motion, Articular||en|
|dc.title||Factor structure of the Shoulder Pain and Disability Index in patients with adhesive capsulitis.||en|
|dc.contributor.department||Department of Physical Medicine and Rehabilitation, Ullevål University Hospital, University of Oslo, Oslo, Norway. email@example.com||en|
|dc.identifier.journal||BMC musculoskeletal disorders||en|
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