Table 4.
Odds Ratio (OR) and 95% Confidence interval (CI) for daily migraine visits for each interquartile range increase † in single-pollutant model in Taipei, Taiwan, 2006–2011 §.
| Adjusted for PM10 | Adjusted for SO2 | Adjusted for NO2 | Adjusted for CO | Adjusted for O3 | |
|---|---|---|---|---|---|
| OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | |
| PM10 | |||||
| ≥23 °C | - | 1.10 (1.07–1.12) | 1.00 (0.98–1.03) | 1.00 (0.98–1.02) | 1.09 (1.07–1.12) |
| <23 °C | - | 1.13 (1.11–1.15) | 1.02 (1.00–1.04) | 1.05 (1.03–1.07) | 1.05 (1.04–1.07) |
| SO2 | |||||
| ≥23 °C | 1.01 (0.98–1.03) | - | 0.93 (0.91–0.96) | 0.97 (0.95–0.99) | 1.04 (1.02–1.06) |
| <23 °C | 0.84 (0.82–0.87) | - | 0.82 (0.80–0.84) | 0.85 (0.83–0.88) | 0.96 (0.94–0.98) |
| NO2 | |||||
| ≥23 °C | 1.15 (1.12–1.17) | 1.20 (1.17–1.22) | - | 1.03 (0.99–1.07) | 1.15 (1.13–1.17) |
| <23 °C | 1.10 (1.08–1.12) | 1.22 (1.20–1.25) | - | 1.37 (1.32–1.42) | 1.26 (1.23–1.29) |
| CO | |||||
| ≥23 °C | 1.19 (1.16–1.22) | 1.21 (1.18–1.23) | 1.16 (1.11–1.20) | - | 1.19 (1.16–1.21) |
| <23 °C | 1.01 (0.99–1.03) | 1.13 (1.10–1.15) | 0.79 (0.76–0.82) | - | 1.16 (1.14–1.19) |
| O3 | |||||
| ≥23 °C | 1.02 (1.00–1.04) | 1.05 (1.03–1.07) | 1.01 (0.99–1.03) | 1.04 (1.02–1.06) | - |
| <23 °C | 1.23 (1.20–1.26) | 1.21 (1.18–1.25) | 1.44 (1.40–1.49) | 1.37 (1.33–1.42) | - |
† Calculated for an interquartile range increases of PM10 (26.81 μg/m3), PM2.5 (17.48 μg/m3), SO2 (2.14 ppb), NO2 (8.49 ppb), CO (0.29 ppm), and O3 (12.5 ppb). § Adjusted for temperature and humidity.