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Table 9 IQR changes in air pollutants and associated changes in physiological endpoints

From: Cardiovascular and inflammatory mechanisms in healthy humans exposed to air pollution in the vicinity of a steel mill

Pollutant Physiological endpoints
Change (95% CI)
Systolic BP Diastolic BP Heart Rate
CO (ppm) −0.07 (− 0.34, 0.20) −0.22 (− 0.45, − 0.002)* 0.13 (− 0.11, 0.36)
NO (ppb) 0.46 (−0.87, 1.79) 0.62 (−0.48, 1.72) 1.75 (0.47, 3.03)*
NO2 (ppb) − 0.74 (− 2.73, 1.24) − 1.64 (− 3.31, 0.030)+ 0.60 (− 0.84, 2.03)
NOx (ppb) 0.31 (− 1.64, 2.25) −1.64 (− 3.54, 0.25)+ 1.89 (− 0.002, 3.78)+
O3 (ppb) − 1.48 (− 2.76, − 0.20)* − 1.82 (− 2.85, − 0.78)* 1.62 (0.49, 2.75)*
PM2.5 (ug/m3) − 0.97) (−2.31, 0.38) −1.97 (− 3.04, − 0.89)* 1.52 (0.35, 2.7)*
SO2 (ppb) − 0.15 (− 0.70, 1.01) −0.26 (− 0.96, 0.45) 0.22 (− 0.53, 0.98)
UFP (particle/cm3) 6.25 (2.79, 9.71)* − 4.67 (− 9.56, 0.22)+ 1.35 (0.29, 2.42)*
  1. *p < 0.05; +p < 0.1(not significant, trend only)
  2. Covariates: Carry over, age, sex and BMI, sequential order of treatments