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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Environ Res. 2011 Apr 29;111(5):677–684. doi: 10.1016/j.envres.2011.04.004

Table 4.

Odds ratio of wheeze symptoms for multiple model structures

Estimated NO2 (Odds Ratio and 95 % Confidence Interval) Urban land-use (Odds Ratio and 95 % Confidence Interval)
Model 1 Univariate Model-Urban land-use 1.09 (1.02, 1.16)
Model 2 Univariate Model- Estimated NO2 1.22 (0.98, 1.51)
Model 3 Multivariate Model- Urban land-use and NO2 1.10 (0.86, 1.40) 1.07 (0.99, 1.16)

Note: NO2 results are per IQR increment of estimated traffic NO2 (9.21ppb). Urban land-use results are per 10% increment within the selected buffer, 1,540m, which is about 185 acres. Results are based on the proportional odds model with health outcome defined as the severity of wheeze symptoms (none, mild, severe in the first year of life). Models adjust for infants’ gender, race, parental asthma history, family income, smoking in the home, presence of persistent mold, and maternal educational attainment.