Ambient air pollution and birth defects in Haikou city, Hainan province

BMC Pediatrics

Table 3 OR (95% CI) for birth defects during the first 3 months of pregnancy in single-pollutant model

Pollutants	β	SE	χ ²	P	OR	OR 95% CI
Pollutants	β	SE	χ ²	P	OR	Lower	Upper
NO₂
1st month	-0.001	0.015	0.004	0.949	0.999	0.97	1.03
2nd month	-0.002	0.015	0.024	0.876	0.998	0.968	1.028
3rd month	-0.004	0.015	0.071	0.790	0.996	0.967	1.026
PM₁₀
1st month	0.008	0.004	3.113	0.078	1.008	0.999	1.017
2nd month	0.006	0.005	1.618	0.203	1.006	0.997	1.015
3rd month	0.012	0.005	6.825	0.009	1.012	1.003	1.021
SO₂
1st month	0.027	0.024	1.315	0.252	1.028	0.981	1.077
2nd month	0.025	0.024	1.063	0.303	1.025	0.978	1.075
3rd month	0.03	0.025	1.484	0.223	1.030	0.982	1.081

ISSN: 1471-2431