Assessing Validity of the Original and Rasch Versions of the Central Sensitization Inventory with Psychophysical Tests in People with Knee Osteoarthritis

OBJECTIVE: To determine the extent of agreement between the original Central Sensitization Inventory (CSI) and the Rasch-calibrated version (RC-CSI) and to explore the association of both versions with psychophysical tests and their respective sensitivity and specificity. METHODS: Patients with knee osteoarthritis who were enrolled in a multicenter cohort study in Montreal, Canada, completed the original CSI, the RC-CSI, and psychophysical …