Scientific Publications Database

Article Title: Validation of a Limitations in Daily Activities Scale for Cesar for Chronic Pain
Authors: Wilson, Keith G.; Castillo, Dyana; Kowal, John; Yong, An Gie; McWilliams, Lachlan A.
Journal: JOURNAL OF PAIN Volume 20 Issue 1
Date of Publication:2019
Abstract:
Limitations in physical function and participation are important domains of assessment in chronic pain. In 1995, the International Association for the Study of Pain distributed a self-report measure of functional limitations. Although the questionnaire has been used in research studies, it has never been subjected to a thorough investigation of its measurement properties. In this study, 941 patients with chronic pain completed the 16-item Limitations in Daily Activities Scale (LIDAS) at 2 pretreatment and 1 post-treatment assessment points. Individual item analysis favored a 13-item scale. This 13-item LIDAS had a confirmed 3-factor structure consisting of limitations in personal care, global participation, and specific tasks. Reliability analyses for the total scale (alpha = .90), as well as for each factor individually (alpha s = .82-.84), indicated good internal consistency, test-retest reliability (intraclass correlations = .65-.88 over varying time intervals), and responsiveness to change with treatment. LIDAS scores correlated as expected with measures of pain intensity, pain cognitions, and depression, as well as with other self-report and clinician-administered measures of functional performance. Using patient global ratings as anchors, a minimal clinically important difference of 5 points was established as a criterion for meaningful individual improvement after treatment. In conclusion, the LIDAS is a reliable, valid, and clinically relevant option for assessing limitations in physical function and participation in patients with chronic pain.Perspective: Physical function and participation comprise a core dimension in the assessment of chronic pain. This study demonstrates that the LIDAS is a reliable and valid measure of this dimension, with good applicability for documenting clinically important change with treatment. (C) 2018 by the American Pain Society.