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Psychometric features of Neuropathic Pain Symptom Inventory in Iranian people with Parkinson’s disease
- Source :
- Neurological Sciences. 42:3233-3239
- Publication Year :
- 2020
- Publisher :
- Springer Science and Business Media LLC, 2020.
-
Abstract
- Neuropathic pain is a type of pain reported in people with Parkinson’s disease. There are various scales to evaluate the characteristics of this kind of pain. The purpose of this study was to investigate the psychometric properties of the Neuropathic Pain Symptom Inventory (NPSI), a specific scale that measures neuropathic pain in Iranian people with Parkinson’s disease. Four hundred forty-seven individuals with Parkinson’s disease were recruited in the study. Acceptability, internal consistency (Cronbach’s alpha), and test-retest reliability (intraclass correlation coefficient, ICC) of NPSI were calculated. Dimensionality was examined through exploratory factor analysis. For convergent validity, correlations of NPSI with Douleur Neuropathic 4, Brief Pain Inventory, King’s Pain Parkinson disease Scale, and Visual Analog Scale-Pain were used. Discriminative validity and sensitivity to change between On- and Off- medication states were analyzed. A marked floor effect was observed for this scale (64.2%). Cronbach’s alpha and ICC were 0.90 and 0.87, respectively. Items of NPSI were placed in 4 factors. A moderate to the strong association (rs = 0.55 to 0.85) between NPSI and other scales was obtained. The results of discriminative validity and sensitivity to change indicate the ability of NPSI to show differences between medication states. The results of this study suggest that NPSI has acceptable reliability, validity, and sensitivity to change, indicating that this scale is suitable for measuring neuropathic pain in Iranian people with Parkinson’s disease.
- Subjects :
- medicine.medical_specialty
Parkinson's disease
Neurology
business.industry
Intraclass correlation
Dermatology
General Medicine
medicine.disease
03 medical and health sciences
Psychiatry and Mental health
0302 clinical medicine
Convergent validity
Cronbach's alpha
Floor effect
Neuropathic pain
medicine
Physical therapy
030212 general & internal medicine
Neurology (clinical)
Brief Pain Inventory
business
030217 neurology & neurosurgery
Subjects
Details
- ISSN :
- 15903478 and 15901874
- Volume :
- 42
- Database :
- OpenAIRE
- Journal :
- Neurological Sciences
- Accession number :
- edsair.doi...........eb63afc06ff14488182b51b532d5e98a