Pollutant | HR (95% CI) |
---|---|
PM2.5 (per IQR = 2.7 µg/m3 increase) | |
Preconception period | 1.01 (0.98 – 1.03) |
Pregnancy period | 1.05 (1.00 – 1.09) |
Sensitive windows | 1.07 (1.02 – 1.11) |
NO2 (per IQR = 10.0 ppb increase) | |
Preconception period | 1.07 (0.88 – 1.23) |
Pregnancy period | 1.00 (0.85 – 1.16) |
Sensitive windows | - |
O3 (per IQR = 7.0 ppb increase) | |
Preconception period | 1.03 (1.01 – 1.06) |
Pregnancy period | 1.04 (1.00 – 1.08) |
Sensitive windows | 1.08 (1.04 – 1.12) |