Table 5.
Adjusted ORa for atrial fibrillation onset in two-pollutant modelb using case-crossover study in Taiwan during 2006–2011
| Pollutant | Day | ORa | (95% CI) |
|---|---|---|---|
| PM2.5 adj. CO | 1 | 1.43 | (1.14–1.79) |
| 2 | 1.18 | (0.94–1.47) | |
| 3 | 0.94 | (0.75–1.18) | |
| 4 | 0.87 | (0.70–1.09) | |
| 5 | 1.00 | (0.83–1.20) | |
| 1–5 | 1.39 | (1.03–1.86) | |
| PM2.5 adj. NO | 1 | 1.19 | (1.01–1.41) |
| 2 | 1.13 | (0.95–1.34) | |
| 3 | 1.00 | (0.84–1.19) | |
| 4 | 0.95 | (0.81–1.13) | |
| 5 | 1.00 | (0.85–1.18) | |
| 1–5 | 1.27 | (0.97–1.66) | |
| PM2.5 adj. NO2 | 1 | 1.33 | (1.10–1.61) |
| 2 | 1.25 | (1.03–1.52) | |
| 3 | 1.09 | (0.89–1.33) | |
| 4 | 0.98 | (0.81–1.18) | |
| 5 | 1.03 | (0.85–1.25) | |
| 1–5 | 1.57 | (1.14–2.18) | |
| PM2.5 adj. SO2 | 1 | 1.25 | (1.03–1.52) |
| 2 | 1.21 | (0.99–1.47) | |
| 3 | 1.11 | (0.91–1.36) | |
| 4 | 0.96 | (0.79–1.16) | |
| 5 | 1.01 | (0.83–1.23) | |
| 1–5 | 1.42 | (1.03–1.96) | |
| PM2.5 adj. O3 | 1 | 1.22 | (1.02–1.45) |
| 2 | 1.14 | (0.95–1.36) | |
| 3 | 0.98 | (0.81–1.78) | |
| 4 | 0.96 | (0.80–1.15) | |
| 5 | 0.98 | (0.82–1.18) | |
| 1–5 | 1.25 | (0.93–1.68) | |
| PM2.5 adj. O3, max 8 hr | 1 | 1.30 | (1.07–1.57) |
| 2 | 1.15 | (0.95–1.40) | |
| 3 | 1.00 | (0.82–1.22) | |
| 4 | 0.95 | (0.79–1.56) | |
| 5 | 1.04 | (0.86–1.27) | |
| 1–5 | 1.37 | (0.99–1.91) |
aOR calculated for an interquartile range increases of PM2.5 (26.2 μg/m3), CO (0.2 ppm), SO2 (1.9 ppb), NO (2.2 ppb), NO2 (8.5 ppb), NOx (9.6 ppb), O3 (14.3 ppb), O3* (26.2 ppb) and PM10 (42.5 μg/m3)
bAll models adjusted for temperature and relative humidity