Use of a Limitations in Daily Activities Scale (LIDAS) provided a valid and reliable tool for measuring chronic pain, a new study found. 941 patients with chronic pain completed the 16-item LIDAS at 2 pretreatment and 1 post-treatment assessment points. Individual item analysis favored a 13-item scale. The 13-item LIDAS had a confirmed 3-factor structure consisting of limitations in personal care, global participation, and specific tasks. Among the findings:
- Reliability analyses for the total scale as well as for each factor individually, indicated good internal consistency, test-retest reliability, and responsiveness to change with treatment.
- LIDAS scores correlated as expected with measures of pain intensity, pain cognitions, and depression, was well as with other self-report and clinician-administered measures of functional performance.
- A 5-point change in total scores indicated a clinically important difference.
Wilson KG, Castillo D, Kowal J, Yong AG, McWilliams LA. Validation of a Limitations in Daily Activities Scale (LIDAS) for chronic pain. [Published online ahead of print August 30, 2018]. J Pain. doi:10.1016/j.jpain.2018.08.004.
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