Short-term exposure to PM(2.5) constituents in relation to epilepsy hospitalization: A time-stratified case-crossover study with exploratory adverse outcome pathway analysis.

Short-term exposure to PM 2.5 and its constituents is linked to a 7.09% to 7.94% increase in epilepsy hospitalizations at lag 6 in the studied population.

• Why it matters: Understanding environmental triggers for epilepsy is crucial because air pollution exposure may exacerbate the condition, yet biological mechanisms remain poorly understood and limited evidence exists.
• What they did: A time-stratified case-crossover study of 4,350 hospitalizations used conditional logistic regression to assess associations between daily air pollutant exposures and epilepsy hospitalizations, focusing on PM 2.5 constituents and gaseous pollutants.
• The result: Findings indicate significant associations between short-term PM 2.5 exposure and increased epilepsy hospitalizations, especially among adults, females, during cool seasons, and in eastern China, suggesting pollution as a potential environmental trigger.