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. 2018 Apr 23;13(4):e0194358.
doi: 10.1371/journal.pone.0194358. eCollection 2018.

Testing the validity and reliability of the Arabic version of the painDETECT questionnaire in the assessment of neuropathic pain

Amani Abu-Shaheen  1 , Shehu Yousef  2 , Muhammad Riaz  3 , Abdullah Nofal  4 , Isamme AlFayyad  1 , Sarfaraz Khan  2 , Humariya Heena  1
Affiliations

Testing the validity and reliability of the Arabic version of the painDETECT questionnaire in the assessment of neuropathic pain

Amani Abu-Shaheen et al. PLoS One. .

Abstract

Introduction: Neuropathic pain (NP) can cause substantial suffering and, therefore, it must be diagnosed and treated promptly. Diagnosis of NP can be difficult and if made by an expert pain physician is considered the gold standard, however where expert help may not be easily available, screening tools for NP can be used. The painDETECT questionnaire (PD-Q) is a simple screening tool and has been widely used in several languages. We developed an Arabic version of PD-Q and tested its validity and reliability.

Methods: The original PD-Q was translated into the Arabic language by a team of experts. The translated version of the PD-Q was administered to the study population, which included patients having moderate to severe pain for at least three months. Reliability of the Arabic version was evaluated by an intra-class-correlation coefficient (ICC) between pre- and post-measures and Cronbach's α values. Validity was measured by receiver operating characteristic (ROC) curve. Expert pain physician diagnosis was considered as the gold standard for comparing the diagnostic accuracy.

Results: A total of 375 patients were included in the study, of which 153 (40.8%) patients were diagnosed with NP and 222 [59.2%] patients had nociceptive pain. The ICC between pre- and post-PD-Q scale total scores for the overall sample, NP group, and NocP group was 0.970 (95% CI, 0.964-0.976), 0.963 (95% CI, 0.949-0.973), and 0.962 (95% CI, 0.951-0.971), respectively. The Cronbach's α values for the post-assessment measures in the overall sample, NP group, and nociceptive pain group, were 0.764, 0.684, and 0.746, respectively. The area under the ROC curve was 0.775 (95% CI, 0.725-0.825) for the PD-Q total score.

Conclusion: The Arabic version of the PD-Q showed good reliability and validity in the detection of NP component in patients with chronic pain.

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Conflict of interest statement

Competing Interests: The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. Etiology of pain in the two study groups.
Fig 2
Fig 2. ROC curve analysis: Plot of sensitivity versus 1-specificity (PD-Q scale).
See this image and copyright information in PMC

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