Weighted road density and allergic disease in children at high risk of developing asthma.

For lung function, significant multivariate associations were seen suggesting small decreases of pre-and post bronchodilator PEF, FEF 50 and FEF 25–75 in association with weighted road density within 75 m but this did not reach statistical significance for weighted road density within 50 m ( Figure 3 , Table 2 , Table S3 in File S1 ).

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