Reliability of the Revised Neurophysiology of Pain Questionnaire-Turkish in patients with neck pain: a cross-validation study
Abstract
Background & Objectives: The Neurophysiology of Pain Questionnaire (NPQ) measures the level of knowledge of patients and healthcare professionals regarding the neurophysiology of pain. The revised Turkish (Tr) version has low reliability for patients with chronic spinal pain. In this study, we investigated the reliability of the Revised NPQ-Tr in patients with neck pain.
Methodology: The Revised NPQ-Tr was administered to 219 participants suffering from neck pain for at least 3 months, who were between the ages of 25 and 60 y and native Turkish speakers. Correct responses were awarded one point, while undecided or incorrectly marked responses were awarded 0 points. In order to analyse the validity of the test, the high-scoring and low-scoring groups were compared. Using the percentage of correct responses in the high and low scoring groups, we calculated the difficulty of the item (P-value) and the discrimination power of the item (r).
Results: Responses to the questionnaire were highly correlated. Items 1 and 2 had high discrimination power (r > 0.40), and items 3 and 5 had very good item quality (0.30 < r < 0.39). Among the items ranked between 1-7 and 9-12 in terms of difficulty of the item and discrimination power, only item 8 was found to be a difficult yet discriminating item (P < 0.60). According to Cronbach's alpha (0.81) and Kuder-Richardson-20 (0.81) coefficients, the questionnaire had a high internal consistency and reliability, and a split-half correlation coefficient (0.802) determined its internal consistency and reliability.
Conclusion: We conclude that the Neurophysiology of Pain Questionnaire-Turkish can be used on neck pain, and it is reliable and highly valid.
Keywords: Chronic Pain, neck pain, pain knowledge, pain education, pain beliefs, Turkish language, reliability, validity.
Citation: Yasarer O, Sari Z, Copuroglu OB, Eker TA, Aydogdu O. Reliability of the Revised Neurophysiology of Pain Questionnaire-Turkish in patients with neck pain: a cross-validation study. Anaesth. pain intensive care 2024;28(5):859−865; DOI: 10.35975/apic.v28i5.2552
Received: August 04, 2024; Reviewed: August 14, 2024; Accepted: August 17, 2024
