Objective: To access the relationship between ambient particulate matter( PM_(2. 5)and PM_(10)) concentration and daily emergency ambulance dispatches due to neurological diseases in one city of the North China.
Methods: Semi-parametric generalized additive model was used to analyze the relationship between particulate matter( PM_(2. 5)and PM_(10)) concentration and daily emergency ambulance dispatches due to neurological diseases from January 1, 2013 to December 31, 2015 after adjustment for time trends, weather conditions and "days of the week".
Results: An 10 μg/m~3 increase in the lag 03 day concentration of PM_(2. 5)corresponded to increase of 0. 75%( 95% CI0. 34%-1. 17%) in daily emergency ambulance dispatches due to neurological diseases, and an 0. 35%( 95% CI 0. 05%-0. 66%) increase correspondence for PM_(10) in the lag04.
Conclusion: Outdoor particulate matter( PM_(2. 5)and PM_(10)) concentration is significantly associated with increased risk of emergency ambulance dispatches due to neurological diseases in the North China.
Keywords: emergency ambulance dispatches; generalized additive model; neurological diseases; particulate matter.