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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