Responsiveness of the shoulder pain and disability index in patients with adhesive capsulitis.

ABSTRACT:

Background

Instruments designed to measure the subjective impact of painful shoulder conditions have become essential in shoulder research. The Shoulder Pain and Disability Index (SPADI) is one of the most extensively used scales of this type. The objective of this study was to investigate reproducibility and responsiveness of the SPADI in patients with adhesive capsulitis.

Methods

SPADI test-retest reproducibility was estimated by the "intraclass correlation coefficient" (ICC) and the "smallest detectable difference" (SDD). Responsiveness was assessed by exploring baseline and follow-up data recorded in a recently reported clinical trial regarding hydrodilatation and corticosteroid injections in 76 patients with adhesive capsulitis. "Standardized response mean" (SRM) and "r

SUBMITTER: Tveita EK 

PROVIDER: S-EPMC2633286 | biostudies-literature | 2008 Dec

REPOSITORIES: biostudies-literature