![]() The S-LANSS showed a significant correlation with ID-Pain ( r = 0.734, α = 0.71). Factor analysis yielded one factor furthermore, all items contributed significantly to the positive total score on the S-LANSS ( P <. The optimal cut-off point for S-LANSS was ≥12 points (AUC = 0.89 sensitivity = 88.7 specificity = 76.6). Convergent validity and reliability were evaluated with Pearson's r and Cronbach's alpha, respectively. Construct validity was assessed with factor analysis and by comparing the odds ratio of each S-LANSS item to the total score. Discriminant validity was evaluated by analysing sensitivity, specificity, and the area under the receiver-operating characteristic curve (AUC). All participants completed the ID-Pain, the S-LANSS, and the Numerical Rating Scale for pain. The validated Spanish-language version of the ID-Pain questionnaire was used as the variable criterion. Our study included a total of 182 patients with chronic pain to assess the convergent and discriminant validity of the S-LANSS the sample was increased to 321 patients to evaluate construct validity and reliability. ![]() To assess the validity and reliability of the Spanish-language version of the S-LANSS scale. ![]() The self-administered Leeds Assessment of Neuropathic Symptoms and Signs (S-LANSS) scale is a tool designed to identify patients with pain with neuropathic features. ![]()
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