ISWT+MID+paper_CLEAN24042019.pdf (204.5 kB)
Minimum important difference of the incremental shuttle walk test distance in patients with COPD.
journal contribution
posted on 2019-07-08, 15:38 authored by Rachael A. Evans, Sally J. SinghWe aimed to describe the minimum important difference (MID) of the ISWT in patients with
COPD using both distribution- and anchor-based methods. Two cohorts were used (n=613)
with eligibility criteria of a clinical diagnosis of COPD, an FEV1/FVC<70%, and an ISWT
(after familiarisation) before and after a seven week course of pulmonary rehabilitation (PR).
The MID of the ISWT using the distribution method was 36.1m. The area under the curve to
discriminate between perceived ‘improvement’ or ‘no improvement’ post-PR for a change in
ISWT of 35m was 0.66 [0.58–0.73]. The MID of the ISWT is therefore between 35.0-36.1m.
Funding
RAE is funded by a National Institute for Health Research (NIHR) Clinician Scientist Fellowship (CS-2016-16-020). This research was supported by the NIHR Leicester Biomedical Research Centre - Respiratory Theme.
History
Citation
Thorax, 2019Author affiliation
/Organisation/COLLEGE OF LIFE SCIENCES/School of Medicine/Department of Infection, Immunity and InflammationVersion
- AM (Accepted Manuscript)