Table 3.
Random effects logistic regression equations evaluating the association of multiple pollutants with the odds of reporting adverse asthma-related quality of life: single and multipollutant models
| Air Pollutants | Single-pollutant Unadjusted OR (95% CI) | Multipollutant Adjusted OR (95% CI)* |
|---|---|---|
| PM2.5 | 1.19 (1.09–1.29) | 1.34 (1.15–1.56) |
| BC | 1.20 (1.02–1.42) | — |
| Proportion BC | — | 1.79 (0.96–3.36) |
| NO2 | 2.12 (1.88–2.38) | 1.58 (1.36–1.83) |
Definition of abbreviations: BC = black carbon; CI = confidence interval; NO2 = nitrogen dioxide; OR = odds ratio; PM2.5 = particulate matter <2.5 μg in aerodynamic diameter.
*
Adjusted models include the following covariates: age (continuous), sex (male vs. female), socioeconomic status score, body mass index (normal, overweight, obese), baseline forced expiratory volume z-score, site (Pampas, Villa), temperature (°C), and each pollutant. Proportion BC indicates the proportion of PM2.5 that was BC.