Cross-cultural adaptation and validation of the French version of the Spinal Cord Injury Pain Instrument (SCIPI)

• Published in: Spinal cord 2022-11, Vol.60 (11), p.990-995
• Main Authors: Reynard, Fabienne, Léger, Bertrand, Jordan, Xavier, Duong, Hong Phuoc
• Format: Article
• Language: English
• Subjects: 692/1807/410; 692/617/375/1824; Anatomy; Biomedical and Life Sciences; Biomedicine; Coefficients; Consistency; Human Physiology; Neuralgia; Neurochemistry; Neuropsychology; Neurosciences; Pain; Performance assessment; Reliability analysis; Spinal cord injuries
• ISSN: 1362-4393; 1476-5624
• DOI: 10.1038/s41393-022-00815-9

Study design Cross-sectional. Objectives To assess the reliability and validity of the French version of the Spinal Cord Injury Pain Instrument (SCIPI) and to determine its performance versus “Douleur Neuropathique 4 questions” (DN4) in diagnosing neuropathic pain (NeuP). Setting Clinique romande de réadaptation, spinal cord injury (SCI) center in the French-speaking part of Switzerland. Methods Backward and forward translation in French of the 4-item SCIPI were performed by native speakers in both languages. Thirty persons with SCI were included in the validation study. Internal consistency was measured with the Kuder-Richardson (KR-20) coefficient. Cohen’s kappa coefficients were used to assess the test–retest reliability and the agreement between SCIPI and DN4. Clinical assessment was used as the reference standard to diagnose NeuP. The area under the receiver operator characteristics curve (AUROC) was used to assess the performance of diagnostic tests. Results KR-20 coefficient of internal consistency was 0.50 (95% CI 0.26, 0.74). Test–retest reliability coefficient was 0.86 (95% CI 0.76, 0.95). The best cutoff value was 2 points, resulting a sensitivity of 88% (95% CI 69%, 98%) and a specificity of 92% (95% CI 75%, 99%). SCIPI had an AUROC of 0.90 (95% CI 0.82, 0.98), which was not significantly lower than the AUROC for DN4, 0.92 (95% CI 0.85, 0.99, p  = 0.56). Agreement between SCIPI and DN4 was of 0.88 (95% CI 0.77, 1.00). Conclusion The French version of the SCIPI is a reliable and valid tool that can identify the presence of NeuP in an individual with SCI.