Table 3.
IRR (CI) for Asthma-related Emergency Department Visits Associated with Census Tract Annual Average Pollution Concentration
| IRR (CI) |
|||
|---|---|---|---|
| All Ages | Pediatric | Adult | |
| Single-pollutant models | |||
| NO2 | 1.01 (0.98–1.04) | 0.99 (0.95–1.04) | 1.09 (1.05–1.14) |
| PM2.5 | 1.22 (1.19–1.25) | 1.14 (1.1–1.18) | 1.34 (1.29–1.38) |
| PM10 | 1.3 (1.28–1.33) | 1.26 (1.23–1.29) | 1.31 (1.28–1.34) |
| SO2 | 1.32 (1.3–1.35) | 1.29 (1.26–1.33) | 1.33 (1.29–1.36) |
| Multipollutant model | |||
| NO2 | 1.02 (0.98–1.06) | 1.09 (1.03–1.15) | 0.99 (0.93–1.04) |
| PM2.5 | 1 (0.96–1.03) | 0.88 (0.84–0.93) | 1.15 (1.1–1.21) |
| PM10 | 1.22 (1.19–1.25) | 1.24 (1.2–1.28) | 1.15 (1.12–1.19) |
| SO2 | 1.24 (1.21–1.27) | 1.24 (1.2–1.28) | 1.23 (1.19–1.27) |
Definition of abbreviations: CI = credible interval; IRR = incidence risk ratio; NO2 = nitrogen dioxide; PM2.5 = particulate matter with an aerodynamic diameter ⩽2.5 μm; PM10 = particulate matter with an aerodynamic diameter ⩽10 μm; SO2 = sulfur dioxide.
Models account for census tract socioeconomic and housing characteristics.