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Development of a neuropathic pain questionnaire
Steven J Krause1, Misha-Miroslav Backonja
1Department of Orthopedics and Rehabilitation Medicine, University of Wisconsin, Madison, Wisconsin, USA.
The Clinical Journal of Pain
|September 11, 2003
Summary
Researchers developed the Neuropathic Pain Questionnaire (NPQ) to assess chronic pain mechanisms. This tool helps differentiate neuropathic pain from other types, aiding diagnosis and treatment monitoring.
Area of Science:
- Pain Medicine
- Neurology
- Psychometrics
Background:
- Assessing chronic pain mechanisms is challenging due to a lack of sensitive diagnostic tools.
- Differentiating neuropathic pain from other pain types is crucial for effective treatment.
Purpose of the Study:
- To develop and validate a novel assessment instrument for neuropathic pain.
- To create a tool that measures pain descriptors indicative of neuropathic pain.
Main Methods:
- A preliminary 32-item questionnaire was administered to 528 chronic pain patients.
- Factor analysis identified key pain descriptors, leading to a 12-item Neuropathic Pain Questionnaire (NPQ).
- The NPQ's ability to differentiate neuropathic from non-neuropathic pain was tested on a holdout sample.
Main Results:
- The Neuropathic Pain Questionnaire (NPQ) was developed from a larger preliminary instrument.
- The NPQ demonstrated 66.6% sensitivity and 74.4% specificity in distinguishing neuropathic pain patients.
- Significant differences in pain descriptors were found between neuropathic and non-neuropathic pain groups.
Conclusions:
- The Neuropathic Pain Questionnaire (NPQ) is a viable tool for initial screening of neuropathic pain.
- The NPQ provides a quantitative measure of pain descriptors important for diagnosis and assessment.
- This instrument can aid in monitoring treatment efficacy and serve as an outcome measure for neuropathic pain.