Association between serum 25-hydroxyvitamin D and osteoarthritis prevalence in US adults: a cross-sectional study using NHANES 2007–2023
Osteoarthritis (OA) is a leading cause of chronic disability globally, and the role of vitamin D in OA pathogenesis remains controversial. This cross-sectional study analyzed data from 35 887 US adults aged ≥20 years across seven NHANES cycles (2007–2023), all using standardized LC-MS/MS for serum 25-hydroxyvitamin D [...