https://www.selleckchem.com/pr....oducts/kynurenic-aci
STUDY DESIGN Registry based repeated-measures psychometric validation of the Danish Oswestry Disability Index (ODI) OBJECTIVE. The goal was to use classical and modern psychometric validation methods to assess the measurement properties and the minimally clinical important difference (MCID) of the ODI in a Danish cohort of patients with chronic low back pain (LBP) being treated with spinal surgery. SUMMARY OF BACKGROUND DATA Scores for the ODI, EQ-5D, SF-36, leg pain, back pain, and a general rating of pain item from 800 patients
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