Table 3.
Association (Odds Ratio, 95% CI) between annual average O3 and PM 10 concentrations and asthma among LA FANS participants ages 0–17 years
| Model | Asthmatics w/attacks vs. Nonasthmatics |
Asthmatics w/o attacks vs. Nonasthmatics |
|---|---|---|
| O3 (per 1 pphm) | ||
| Crude | 1.64 (1.15–2.33) | 1.46 (1.07–1.99) |
| + age, gender, race/ethnicity | 1.43 (0.98–2.08) | 1.47 (1.06–2.04) |
| + age, gender, race/ethnicity, home ownership | 1.40 (0.96–2.03) | 1.46 (1.05–2.03) |
| + age, gender, race/ethnicity, PCG education | 1.37 (0.93–2.02) | 1.44 (1.03–2.01) |
| + age, gender, race/ethnicity, insurance status | 1.34 (0.89–2.00) | 1.46 (1.03–2.08) |
| + age, gender, race/ethnicity, PCG foreign born | 1.22 (0.83–1.77) | 1.37 (0.98–1.91) |
| + age, gender, race/ethnicity, PCG marital status | 1.41 (0.97–2.05) | 1.47 (1.06–2.03) |
| + age, gender, race/ethnicity, relatives in neighborhood | 1.27 (0.86–1.87) | 1.50 (1.07–2.09) |
| + all variables | 0.99 (0.64–1.53) | 1.45 (1.00–2.10) |
| + all variables, PM10 | 1.00 (0.64–1.56) | 1.56 (1.05–2.32) |
| + all variables, PM10, PM2.5 | 1.00 (0.61–1.64) | 1.45 (0.93–2.25) |
| O3 (+all variables, PM10, PM2.5) | ||
| <25th percentile (1.65 pphm) | 1.00 | 1.00 |
| ≥75th percentile (2.09 pphm) | 1.39 (0.75–2.58) | 1.28 (0.76–2.16) |
| <90th percentile | 1.00 | 1.00 |
| ≥90th percentile (2.38 pphm) | 1.19 (0.64–2.21) | 1.69 (0.98–2.92) |
| PM10 (per 10 µg/m3) | ||
| Crude | 0.94 (0.62–1.44) | 1.10 (0.77–1.58) |
| + age, gender, race/ethnicity | 1.19 (0.77–1.82) | 1.12 (0.77–1.63) |
| + age, gender, race/ethnicity, home ownership | 1.16 (0.75–1.78) | 1.14 (0.79–1.66) |
| + age, gender, race/ethnicity, PCG education | 1.08 (0.70–1.67) | 1.09 (0.75–1.59) |
| + age, gender, race/ethnicity, insurance status | 1.17 (0.74–1.84) | 1.17 (0.79–1.74) |
| + age, gender, race/ethnicity, PCG foreign born | 1.13 (0.74–1.73) | 1.12 (0.77–1.62) |
| + age, gender, race/ethnicity, PCG marital status | 1.20 (0.78–1.84) | 1.17 (0.80–1.73) |
| + age, gender, race/ethnicity, relatives in neighborhood | 1.29 (0.83–2.01) | 1.13 (0.78–1.65) |
| + all variables | 1.04 (0.65–1.67) | 1.21 (0.81–1.82) |
| + all variables, O3 | 1.04 (0.65–1.68) | 1.34 (0.90–2.00) |
| + all variables, O3, PM2.5 | 1.03 (0.63–1.70) | 1.46 (0.96–2.22) |
| PM10 (+all variables, O3, PM2.5) | ||
| <25th percentile (37.6 µg/m3) | 1.00 | 1.00 |
| ≥75th percentile (42.9 µg/m3) | 1.15 (0.60–2.20) | 1.24 (0.71–2.17) |
| <90th percentile | 1.00 | 1.00 |
| ≥90th percentile (45.9 µg/m3) | 1.10 (0.56–2.14) | 1.86 (1.13–3.08) |