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Table 4 Associatio n* of the quartiles of air pollutants and Pollutant Standards Index with upper quartile of tissue factor and thrombomodulin

From: The relationship of air pollution and surrogate markers of endothelial dysfunction in a population-based sample of children

  Quartile1 Quartile2 Quartile3 Quartile4 P value for linear trend
PM 10 50.65-121.74 121.75-178.47 178.48-224.87 224.88-281.55  
   TF 1:00 1.04(0.8-1.7) 1.10(0.61-1.42) 1.30(1.08-1.40) 0.03
   TM 1:00 0.91(0.62-2.15) 0.84(0.82-1.7) 0.72(1.07-1.51) 0.04
CO 1.54-3.74 3.75-5.74 5.75-8.97 8.98-10.78  
   TF 1:00 1.05(0.61-1.95) 1.11(0.51-1.72) 1.11(0.91-1.82) 0.06
   TM 1:00 0.90(0.25-1.81) 0.92(0.51-1.90) 0.91(0.62-1.80) 0.20
SO 2 7.54-41.90 41.91-68.24 68.25-77.11 77.12-88.95  
   TF 1:00 1.04(0.71-2.52) 1.11(0.61-1.90) 1.10(0.91-1.90) 0.08
   TM 1:00 0.91(0.41-1.60) 0.95(0.50-1.71) 0.92(0.70-1.81) 0.35
NO 2 24.71-57.44 57.45-91.84 91.85-106.71 106.72-120.25  
   TF 1:00 1.03(0.70-1.54) 1.07(0.80-1.64) 1.11(0.80-1.91) 0.08
   TM 1:00 0.90(0.41-1.60) 0.91(0.51-1.70) 0.95(0.71-1.82) 0.35
O 3 12.71-32.14 32.15-41.75 41.76-50.71 50.72-56.14  
   TF 1:00 1.05(0.71-1.65) 1.1(0.6-1.4) 1.3(1.08-1.4) 0.03
   TM 1:00 0.91(0.62-2.15) 0.84(0.81-1.75) 0.72(1.07-1.50) 0.04
PSI 45.18-72.64 72.65-96.47 96.48-121.19 121.20-135.11  
   TF 1:00 1.05(0.82-1.91) 1.10(0.64-1.40) 1.41(1.11-1.62) 0.02
   TM 1:00 0.90(0.61-1.75) 0.84(0.62-1.45) 0.72(1.08-1.64) 0.04
  1. *: Values represent odds ratio (95%CI) adjusted for age, gender, anthropometric measures, dietary and physical activity habits
  2. TF: Tissue Factor(Pg/mL); TM: Thrombomodulin(μmol/L); PM10: particular matter 10((μg/m3); CO: carbon monoxide(ppm); SO2: sulfur dioxide(ppb); NO2: Nitrogen dioxide(ppb); O3: ozone(ppb); PSI; Pollution Standards Index
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