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Comparison between the “negative neuropathic” (≤12), unclear (13 to 18) and “positive neuropathic” (19+) PainDETECT categories for scores obtained in the subcategories of the WOMAC questionnaire (A), the PQAS questionnaire (B), and the ALF test (C). ALF indicates aggregated locomotor function; PQAS, Pain Quality Assessment Scale; WOMAC, Western Ontario and McMaster Universities Arthritis Index. *P<0.05, **P<0.001, ***P<0.0001.
