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Table 4 Effects of concentration of ambient air pollutants on birth weight of infants born full term

From: Ambient air pollution and adverse birth outcomes: a natural experiment study

Concentration of ambient air pollutant

NO2 (per 10 ug/m3)

PM10 (per 10 ug/m3)

Single pollutant model

Multi pollutant model

Single pollutant model

Multi pollutant model

Change of birth weight

P-value

Change of birth weight

P-value

Change of birth weight

P-value

Change of birth weight

P-value

1st trimester

5.85 (−1.03, 12.74)

0.096

−1.43 (−17.16, 14.3)

0.859

−1.18 (−3.21, 0.85)

0.254

−1.63 (−5.66, 2.40)

0.427

2nd trimester

−3.72 (−11.76, 4.32)

0.364

−9.74 (−28.85, 9.38)

0.318

0.43 (−1.74, 2.60)

0.699

2.54 (−3.57, 8.66)

0.415

3rd trimester

−13.78 (−21.12, −6.43)

0.000

−14.78 (−29.13, −0.43)

0.044

−2.55 (−5.29, 0.20)

0.069

4.67 (−2.76, 12.10)

0.218