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Table 3 Odds ratios for experiencing an asthma exacerbation given a 10 % increase in each of the three traffic metrics

From: Asthma exacerbations and traffic: examining relationships using link-based traffic metrics and a comprehensive patient database

Effect

Logistic*

Poisson**

Odds ratio (95 % CI)

Odds ratio (95 % CI)

Traffic Density

1.15 (1.11–1.22)

1.16 (1.12–1.17)

VKT_250 m

1.10 (1.08–1.13)

1.11 (1.08–1.12)

VKT_500 m

1.06 (1.04–1.08)

1.08 (1.05–1.09)

  1. *The logistic asthma exacerbation outcome was defined as 1=any exacerbations/year, 0=no exacerbations
  2. **The Poisson asthma exacerbation outcome was defined as number of asthma exacerbations per year
  3. All models included age (quadratic term), sex and poverty index
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Environmental Health

ISSN: 1476-069X