TABLE 4.
Percent increase (95% CI) in rate of admission for CHF associated with an interquartile range increase in pollutant levels in single-pollutant and two-pollutant models*.
| Pollutant (IQR) | Single-Pollutant | Adjusted for PM10 | Adjusted for CO | Adjusted for NO2 | Adjusted for O3 | Adjusted for SO2 |
|---|---|---|---|---|---|---|
| PM10 (24 μg/m3) | 3.07 (1.59, 4.57) | -- | −1.10 (−3.02, 0.86) | 0.52 (−1.46, 2.53) | 2.80 (1.29, 4.33) | 2.18 (0.37, 4.02) |
| CO (0.55 ppm) | 4.55 (3.33, 5.79) | 5.18 (3.49, 6.89) | -- | 4.84 (3.06, 6.66) | 4.35 (3.08, 5.64) | 4.51 (3.15, 5.90) |
| NO2 (11 ppb) | 4.22 (2.61, 5.85) | 4.05 (1.83, 6.31) | −0.37 (−2.59, 1.89) | -- | 3.73 (2.10, 5.39) | 3.79 (1.93, 5.67) |
| O3 (17 ppb) | −1.60 (−3.77, 0.61) | −1.96 (--4.14, 0.27) | 0.13 (−2.12, 2.44) | −1.19 (−3.38, 1.06) | -- | −1.41 (−3.58, 0.81) |
| SO2 (11 ppb) | 2.36 (1.05, 3.69) | 1.35 (−0.27, 2.99) | 0.10 (−1.35, 1.57) | 0.68 (−0.82, 2.21) | 2.02 (0.68, 3.37) | -- |
*
In models controlling for barometric pressure and apparent temperature. Symbols: --, not applicable.