Study of verbal description in neuropathic pain
- 1 August 1990
- journal article
- Published by Ovid Technologies (Wolters Kluwer Health) in Pain
- Vol. 42 (2), 145-152
- https://doi.org/10.1016/0304-3959(90)91158-f
Abstract
The aim of this paper is to study the quality of verbal description and its diagnostic value in neuropathic pain. The verbal description of pain as assessed by a French adjective list questionnaire (QDSA) is compared between a group of 100 patients with neuropathic pain and a mixed group of 97 chronic benign and cancer non-neuropathic pain patients. Seventeen descriptors of the 61 QDSA descriptors have a significant intergroup frequency difference. By principal component analysis and Varimax rotation of the intercorrelation matrix of descriptors in the neuropathic group. 7 factors accounting for 66.0% of the total variance are derived. Six factors reflect purely sensory or affective aspects of the pain experience. Seven descriptors from the discriminant analysis function correctly assign 77% of neuropathic pain patients and 81% of the non-neuropathic pain patients. In a second neuropathic pain group of 32 patients, the discriminant function coefficient permits correct diagnostic categorization in 66% of the cases. Implications for clinical practice and trials are discussed.Keywords
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