Longitudinal associations of in utero and early life near-roadway air pollution with trajectories of childhood body mass index.

For in utero (model 1), a 40.1 ppb difference in near-road freeway NO x exposure was associated with a 0.05 kg/m 2 (95% CI: -0.02, 0.1) faster increase in BMI per year and a 0.1 kg/m 2 (95% CI: -0.3, 0.5) higher BMI at age 10 years; however, these estimates did not reach statistical significance after adjusting for confounders (Table 3 ).

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