Short-Term Ambient Air Pollution and Acute Osteoarthritis Morbidity Across Population Subgroups: A Nationwide Case-Crossover Study of Hospital Visits in South Korea.
Osteoarthritis (OA) is a leading cause of disability, yet its acute environmental triggers remain poorly understood despite rising healthcare demand in aging societies. Short-term exposure may aggravate established OA, but claims-based visit dates reflect healthcare utilization rather than confirmed symptom onset. We l...