Table 5

 Mean effects (95% CI)* of PM2.5 exposure on baseline to 6 hours post-baseline changes in levels of systemic inflammatory markers

Crude modelAdjusted model†
C-reactive protein, mg/l0.08(−0.05 to 0.22)0.06(−0.07 to 0.20)
Fibrinogen, mg/dl−7(−18 to 3)−7(−19 to 4)
White blood cells, ×103/μl0.2(−0.1 to 0.5)0.2(−0.1 to 0.5)
Absolute neutrophils, ×103/μl0.1(−0.1 to 0.4)0.2(−0.1 to 0.4)
Relative neutrophils, %0.3(−1 to 2)0.2(−2 to 2)
Adjusted model† with interaction term for smoking status
*The coefficient is expressed as the change in the systemic inflammatory marker per 1 mg/m3 incremental change in PM2.5 concentration.
†Models adjusted for centred age and smoking status.
‡p<0.05; §p<0.10.
C-reactive protein, mg/l0.14(−0.03 to 0.31)−0.06(−0.28 to 0.17)
Fibrinogen, mg/dl−10(−24 to 5)−3(−22 to 16)
White blood cells, ×103/μl0.3§(−0.05 to 0.7)0.1(−0.4 to 0.5)
Absolute neutrophils, ×103/μl0.3‡(0.02 to 0.6)−0.1(−0.5 to 0.3)
Relative neutrophils, %1(−1 to 4)−2(−5 to 1)