Figure 3. Association between each 10 µg/m3 increment in PM concentrations and odds ratio for emergency department visits for AMI, STEMI, and NSTEMI in 0–5 lag days. AMI, acute myocardial infarction; NSTEMI: non-ST-elevation myocardial infarction; STEMI: ST-elevation myocardial infarction. No associations were found between emergency department visits for overall AMI, NSTEMI, and any of the lagged PM2.5/PM10 concentrations. Each increment of 10 µg/m3 in PM2.5 concentration (1-day lagged) was associated with a significantly increased risk of STEMI, which indicated a transient effect of short-term PM2.5 exposure on emergency department visits for STEMI.
