Table 3.
The OR (95% CI) of SO2, NO2, CO, and O3 exposure and the incidence of newborn CH in different models by liner regression analysis
| Air pollutants | OR (95% CI) | P |
|---|---|---|
| SO2 | ||
| Model 1 | 0.988 (0.950,1.028) | 0.574 |
| Model 2 | 1.003 (0.957,1.051) | 0.900 |
| Model 3 | 0.992 (0.950,1.036) | 0.728 |
| Model 4 | 1.001 (0.951,1.053) | 0.976 |
| NO2 | ||
| Model 1 | 1.059 (0.990,1.132) | 0.098 |
| Model 2 | 1.089 (1.019,1.164) | 0.018 |
| Model 3 | 1.077 (1.000,1.182) | 0.058 |
| Model 4 | 1.097 (1.019,1.182) | 0.022 |
| CO | ||
| Model 1 | 0.694 (0. 094,5.100) | 0.722 |
| Model 2 | 1.081 (0.131,8.908) | 0.943 |
| Model 3 | 0.816 (0.094,7.105) | 0.855 |
| Model 4 | 1.073 (0.107,10.793) | 0.953 |
| O3 | ||
| Model 1 | 1.053 (1.013,1.095) | 0.016 |
| Model 2 | 1.054 (1.014,1.097) | 0.013 |
| Model 3 | 1.052 (1.008,1.099) | 0.029 |
| Model 4 | 1.055 (1.011,1.102) | 0.024 |
Model 1, unadjusted for covariates in linear regression. Model 2, adjusted for the average temperature in linear regression. Model 3, adjusted for the content of toxic metal in wastewater, including Pb, Hg, As, and Cd in linear regression. Model 4, adjusted for the average temperature and the content of toxic metal in wastewater including Pb, Hg, As, and Cd in linear regression