Table 2.
Results of logistic and Poisson regression analyses of asthma exacerbations and traffic exposure
| Logistica | Poissonb | |
|---|---|---|
| Variable | OR 95 % CL | OR 95 % CL |
| Age | 0.98 (0.97, 0.98) | 1.00 (0.99, 1.00) |
| Sex | 1.12 (1.04, 1.20) | 1.29 (1.18, 1.29) |
| Poverty Index | 1.02 (1.01, 1.02) | 1.02 (1.02, 1.02) |
| Log Traffic density | 1.15 (1.11, 1.20) | 1.16 (1.12, 1.16) |
| Age | 0.98 (0.97, 0.98) | 1.00 (0.99, 1.00) |
| Sex | 1.12 (1.04, 1.20) | 1.30 (1.18, 1.30) |
| Poverty Index | 1.02 (1.01, 1.02) | 1.02 (1.02, 1.02) |
| log VKT 250 m | 1.10 (1.08, 1.13) | 1.11 (1.08, 1.11) |
| Age | 0.98 (0.97, 0.98) | 1.00 (0.99, 1.00) |
| Sex | 1.12 (1.04, 1.20) | 1.29 (1.18, 1.29) |
| Poverty Index | 1.02 (1.01, 1.02) | 1.02 (1.02, 1.02) |
| log VKT 500 m | 1.06 (1.04, 1.08) | 1.08 (1.05, 1.08) |
aThe logistic asthma exacerbation outcome was defined as 1 = any exacerbations/year, 0 = no exacerbations. Sex 1 = male, 0 = female, age, age2 and poverty index were modeled as continuous variables
bThe Poisson asthma exacerbation outcome was defined as number of asthma exacerbations per year. Sex 1 = male, 0 = female, age, age2 and poverty index were modeled as continuous variables