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Table 6 Effect of proximity and modelled NO2 on Total IgE

From: Effect of traffic pollution on respiratory and allergic disease in adults: cross-sectional and longitudinal analyses

Exposure variable

N

Median Total IgE kU/l (IQR)

Adjusted regression coefficient* (95% CI)

P-value

Distance

    

<= 150 m

553

27 (8–80)

-0.04 (-0.11, 0.03)

0.25

>150

1914

26 (9–87.9)

0

 

Bands of distance

    

<50 m

153

23 (7–85)

0.05 (-0.11, 0.21)

0.61

50–100 m

219

30 (10–84)

0.07 (-0.07, 0.21)

Ptrend = 0.49

>100 m

181

27 (6–69.4)

0

 

Quintiles of NO 2 (μg/m 3 )

    

<33.92

489

26.8 (9–88)

0

0.92

33.92–34.23

501

24 (9–91.5)

-0.04 (-0.13, 0.06)

Ptrend = 0.69

34.23–34.73

487

22 (9.8–80.8)

-0.01 (-0.11, 0.08)

 

34.73–36.79

492

29.7 (9.7–85.1)

-0.02 (-0.11, 0.08)

 

>36.79

498

26 (9–84)

-0.03 (-0.12, 0.06)

 
  1. IQR Interquartile range
  2. * β coefficient from linear regression analysis of log transformed IgE