Table 2.
ORs (95% CI) from conditional logistic regression models for ASD per IQRd increase in air-pollutants levels in different time periods (Case N=15,387; Control N=68,139)
| Exposure | Exposure period | OR (95% CI) |
||
|---|---|---|---|---|
| Unadjusteda | Adjustedb | Mutually adjustedc | ||
| NO2 | Pregnancy | 1.19 (1.16, 1.22) | 1.10 (1.06, 1.13) | 1.00 (0.93, 1.08) |
| 9 months after birth | 1.20 (1.17, 1.23) | 1.11 (1.07, 1.14) | 1.08 (1.01, 1.15) | |
| SO2 | Pregnancy | 1.29 (1.23, 1.35) | 1.12 (1.07, 1.18) | 0.96 (0.90, 1.04) |
| 9 months after birth | 1.38 (1.31, 1.45) | 1.21 (1.15, 1.28) | 1.21 (1.13, 1.29) | |
| PM10 | Pregnancy | 0.99 (0.95, 1.02) | 0.97 (0.94, 1.01) | 0.95 (0.91, 1.00) |
| 9 months after birth | 1.03 (0.99, 1.06) | 1.01 (0.97, 1.05) | 1.04 (1.00, 1.09) | |
| PM2.5 | Pregnancy | 1.06 (1.02, 1.11) | 1.00 (0.96, 1.04) | 0.96 (0.91, 1.02) |
| 9 months after birth | 1.11 (1.07, 1.15) | 1.04 (1.00, 1.09) | 1.06 (1.01, 1.11) | |
a
note: these are pair matched on gender, birth year
b
adjusted maternal age, paternal age, location of birth, neighborhood SES-employment, neighborhood SES-housing, and maternal smoking during pregnancy
c
adjusted for all other covariates listed above and all exposure periods (pre-pregnancy, pregnancy and post-pregnancy).
d
IQRs in controls: NO2: 11.41 ug/m3; SO2: 2.80 ug/m3; PM10: 3.80 ug/m3; PM2.5: 3.61 ug/m3