Modified Severity of Dyspepsia Assessment pain scale: a new tool for measuring upper abdominal pain in osteoarthritis patients taking NSAIDs.

ABSTRACT:

Background

This study evaluated the electronically administered modified Severity of Dyspepsia Assessment (mSODA) pain scale, a six-item measure of upper abdominal pain intensity, for daily use in osteoarthritis patients taking nonsteroidal anti-inflammatory drugs.

Methods

Once the mSODA pain scale was isolated, cognitive debriefing interviews (n = 30) were used to examine its appropriateness in the target population. Following administration of the instrument in two Phase III pivotal trials, the data were analyzed to examine reliability, validity, responsiveness, and the minimal important difference.

Results

Using a subset of trial data (n = 90 patients), the mSODA pain scale proved to be a unidimensional, highly internally consistent instrument (α = 0.93) with good

SUBMITTER: Welle J 

PROVIDER: S-EPMC3417929 | biostudies-literature | 2011 Jul

REPOSITORIES: biostudies-literature