Table 2.
Odds Ratios (OR) from multivariable beta regression models with air pollutants controlled for altitude, higher-education rate, smoking rate, obesity rate, and GRDP per capita.
| Breast cancer incidence rate OR (95%CI) | Breast cancer mortality rate OR (95%CI) | |
|---|---|---|
| Single-pollutant | ||
| CO (per 100 ppb) | 1.08 (1.06–1.10) | 1.02 (0.987–1.05) |
| NO2 (per 10 ppb) | 1.14 (1.12–1.16) | 1.02 (0.983–1.05) |
| SO2 (per 1 ppb) | 1.04 (1.02–1.05) | 1.02 (0.991–1.04) |
| PM10 (per 10 µg/m3) | 1.13 (1.09–1.17) | 1.05 (1.01–1.09) |
| Multi-pollutant | ||
| CO with NO2, SO2, and PM10 | 1.09 (1.07–1.12) | 1.02 (0.989–1.05) |
| NO2 with CO, SO2, and PM10 | 1.14 (1.11–1.16) | 1.03 (0.985–1.06) |
| SO2 with CO, NO2, and PM10 | 1.04 (1.02–1.06) | 1.01 (0.989–1.03) |
| PM10 with CO, NO2, and SO2 | 1.13 (1.08–1.17) | 1.04 (1.00–1.09) |