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. 2020 Mar 24;7(1):e000549. doi: 10.1136/bmjresp-2019-000549

Table 3.

Description of individually assigned air pollution exposures at the follow-up (2007–2010) of the cohort (n=236)

Mean SD IQR Minimum Maximum
NO2 27.2 6.88 7.65 18.4 68.2
NOx 44.1 17.3 19.4 21.7 115
PM10 26.9 1.93 2.03 23.5 33.2
PMcoarse 9.56 1.53 1.68 4.40 14.7
PM2.5 17.5 1.45 2.11 14.2 21.4
PM2.5absorbance 1.45 0.43 0.39 0.87 3.95
Major road length <1 km buffer 6672 4447 4316 0 27 143
O3 60.0 2.99 6.35 56.7 63.4

IQR: Intrequartile Range SD: Standard deviation

NO2, nitrogen dioxide (µg/m3); NOx, oxides of nitrogen (µg/m3); O3, ozone (µg/m3); PM10, particulate Matter <10µm diameter (µg/m3); PM2.5, particulate matter <2.5µm diameter (µg/m3); PM2.5absorbance, particulate Matter <2.5 µm diameter absorbance (10-5/m); PMcoarse, coarse fraction of PM10 calculated as PM10 minus PM2.5 (µg/m3).