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Fig. 2 | Environmental Health

Fig. 2

From: Identifying critical windows of air pollution exposure during preconception and gestational period on birthweight: a prospective cohort study

Fig. 2

Differences in birthweight Z-score, birthweight, SGA and LGA associated with 1 IQR increase (17.4 μg/m3, equivalent to 9.26 ppb) of NO2 during preconception and gestational periods. Distributed lag models were adjusted for the maternal age, ethnicity, education, occupation, maternal BMI at first trimester, maternal gravidity, maternal smoking status, exposure to secondhand smoking, season of delivery, gestational age (only for birthweight), children’s sex (only for birthweight), temperature, and relative humidity. The x-axis indicated the time in week of gestation (i.e. conception date is 0 week). The dashed line separated preconception period, first trimester, second trimester and third trimester from left to right, respectively

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Environmental Health

ISSN: 1476-069X