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Table 2 Exposure details on PM2.5 and NO2 air pollution (μg/m3) during different time windows of pregnancy and different periods during the childhood of the participants (n = 245)

From: Children’s microvascular traits and ambient air pollution exposure during pregnancy and early childhood: prospective evidence to elucidate the developmental origin of particle-induced disease

Type of air pollution exposure and time windowMean (SD)25th percentile75th percentileIQR
  Trimester 114.3 (5.5)9.618.28.6
  Trimester 214.2 (5.1)9.617.98.3
  Trimester 314.2 (5.7)
  Entire pregnancy14.3 (2.3)12.615.83.2
  Day of follow-up visit11.2 (8.3)4.815.110.3
  Day before follow-up visit12.1 (10.2)4.515.911.4
  Week before follow-up visit13.0 (7.5)7.317.710.4
  Average childhood exposure12.6 (1.1)11.913.31.4
  Trimester 119.9 (6.0)
  Trimester 219.8 (6.2)
  Trimester 319.6 (6.2)14.723.79.0
  Entire pregnancy19.7 (4.4)16.522.76.2
  Day of follow-up visit17.0 (8.7)10.521.310.8
  Day before follow-up visit17.2 (9.5)9.722.813.1
  Week before follow-up visit17.2 (7.2)11.721.710.0
  Average childhood exposure17.2 (3.4)14.619.34.7
  1. Abbreviations: IQR interquartile range, NO2 nitrogen dioxide, PM2.5 particulate matter with a diameter smaller than 2.5 μm, SD standard deviation