Distribution of air pollution concentrations back-extrapolated to baseline metrics according to European Study of Cohorts for Air Pollution Effects (ESCAPE) protocols

Median (IQR)Distribution (min–max)
PM2.5 μg·m−333.0 (4.9)22.0–41.3
PM10 μg·m−349.8 (8.0)32.2–65.1
NO2 μg·m−333.5 (13.8)20.3–84.1

The total number of subjects is 520. IQR: interquartile range; PMx: particles with a 50% cut-off aerodynamic diameter of x µm; NO2: nitrogen dioxide.