From: Effect of ambient air pollution on premature SGA in Changzhou city, 2013–2016: a retrospective study
Air pollutants and model a | Trimester1 | Trimester2 | Trimester3 | Whole gestation | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
OR b | 95% CI | OR b | 95% CI | OR b | 95% CI | OR b | 95% CI | |||||
PM2.5 (μg/m3) | ||||||||||||
Single-model | 1.01 | 0.47 | 3.02 | 1.34 | 0.67 | 1.98 | 1.09 | 0.67 | 1.86 | 1.03 | 0.67 | 1.31 |
+ SO2 | 1.66 | 0.62 | 1.77 | 1.13 | 0.96 | 1.72 | 1.18 | 1.03 | 2.83 | 1.63 | 1.38 | 2.57 |
+ NO2 | 1.37 | 0.53 | 1.86 | 1.26 | 0.68 | 1.98 | 1.03 | 0.53 | 1.26 | 1.24 | 0.74 | 2.17 |
+ SO2 + NO2 | 1.22 | 0.77 | 2.99 | 1.37 | 0.80 | 3.54 | 1.37 | 1.03 | 3.58 | 1.83 | 1.18 | 2.97 |
SO2 (μg/m3) | ||||||||||||
Single-model | 1.01 | 0.58 | 2.82 | 1.04 | 0.75 | 1.57 | 0.99 | 0.61 | 1.97 | 1.00 | 0.94 | 1.25 |
+ PM2.5 | 0.99 | 0.74 | 3.78 | 0.98 | 0.76 | 1.52 | 0.96 | 0.67 | 0.99 | 0.95 | 0.89 | 1.47 |
+ NO2 | 1.02 | 0.59 | 1.26 | 1.03 | 0.84 | 1.83 | 0.99 | 0.48 | 1.98 | 0.99 | 0.84 | 1.57 |
+ PM2.5 + NO2 | 1.03 | 0.74 | 3.31 | 1.10 | 0.95 | 1.52 | 1.17 | 0.76 | 2.71 | 1.05 | 0.76 | 2.99 |
NO2 (μg/m3) | ||||||||||||
Single-model | 1.04 | 0.80 | 2.97 | 1.24 | 0.58 | 1.67 | 1.00 | 0.92 | 1.41 | 1.00 | 0.67 | 1.94 |
+ PM2.5 | 0.99 | 0.52 | 1.34 | 1.01 | 0.94 | 1.95 | 0.99 | 0.89 | 1.46 | 0.99 | 0.92 | 1.57 |
+ SO2 | 1.26 | 0.66 | 1.82 | 1.01 | 0.94 | 2.97 | 1.01 | 0.95 | 2.17 | 1.14 | 0.88 | 2.18 |
+ PM2.5 + SO2 | 1.31 | 0.72 | 3.83 | 1.26 | 0.93 | 3.26 | 0.99 | 0.79 | 2.85 | 1.23 | 0.67 | 2.56 |