The association of folate deficiency with clinical and radiological severity of knee osteoarthritis.

Context: Folate deficiency is often observed in patients with inflammatory diseases, raising questions about its role in knee osteoarthritis (OA) progression.

Objectives: This study aimed to assess the association of folate deficiency with the clinical and radiological severity of knee OA.

Methods: A prospective cross-sectional study was conducted from January 1, 2019 to January 1, 2020.