Table 3.
Percent changes in the risk of onset of ACS per interquartile range increase in concentrations of PM2.5 total mass and its chemical constituents during lag 0 day, stratified by age, sex, and season
| Subgroups | PM2.5 | Organic matter | Black carbon | Nitrate | Sulfate | Ammonium |
|---|---|---|---|---|---|---|
| Age | ||||||
| <65 | 1.83 (1.46, 2.21) | 1.97 (1.61, 2.33) | 1.84 (1.49, 2.20) | 1.41 (1.05, 1.78) | 1.39 (1.04, 1.73) | 1.24 (0.88, 1.60) |
| ≥ 65 | 2.15 (1.78, 2.52) | 2.33 (1.97, 2.69) | 2.22 (1.86, 2.57) | 1.67 (1.30, 2.04) | 1.74 (1.40, 2.09) | 1.78 (1.41, 2.14) |
| Sex | ||||||
| Male | 2.00 (1.69, 2.32) | 2.23 (1.92, 2.54) | 2.11 (1.80, 2.41) | 1.50 (1.19, 1.81) | 1.63 (1.33, 1.93) | 1.48 (1.17, 1.79) |
| Female | 1.90 (1.43, 2.37) | 1.98 (1.53, 2.43) | 1.87 (1.43, 2.32) | 1.63 (1.16, 2.09) | 1.44 (1.01, 1.87) | 1.57 (1.11, 2.03) |
| Season | ||||||
| Warm | 1.40 (1.03, 1.78) | 1.78 (1.43, 2.14) | 1.71 (1.36, 2.05) | 1.03 (0.68, 1.39) | 0.94 (0.58, 1.29) | 1.02 (0.66, 1.38) |
| Cold | 2.52 (2.13, 2.92) | 2.60 (2.21, 2.98) | 2.39 (2.02, 2.77) | 2.02 (1.62, 2.42) | 2.06 (1.71, 2.42) | 1.94 (1.56, 2.33) |
| Region | ||||||
| South | 2.14 (1.75, 2.53) | 2.21 (1.82, 2.60) | 2.32 (1.93, 2.71) | 1.57 (1.18, 1.96) | 2.12 (1.73, 2.51) | 1.61 (1.21, 2.01) |
| North | 1.88 (1.53, 2.22) | 2.14 (1.79, 2.48) | 1.87 (1.54, 2.21) | 1.53 (1.19, 1.88) | 1.31 (0.99, 1.64) | 1.49 (1.15, 1.83) |
ACS acute coronary syndrome, PM2.5 fine particulate matter.