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

Table 4 Effects of in utero/first year of life and childhood non-freeway NO_x exposures on 4-year childhood BMI trajectories in children in CHS

Non-Freeway NO_x (ppb)	BMI Growth Per Year^a Effect (95% CI)	BMI at Age 10 Years^a Effect (95% CI)
Model 1
In utero (n = 2072)	0.03 (−0.05, 0.1)	0.1 (− 0.3, 0.6)
Childhood	0.08 (−0.007, 0.2)	0.6 (0.08, 1.03)*
Model 2
First year of life (n = 2318)	− 0.02 (− 0.1, 0.06)	−0.07 (− 0.5, 0.4)
Childhood	0.1 (0.01, 0.2)*	0.6 (0.1, 1.1)*

^aBMI growth (kg/m²) over study follow up and difference in attained BMI at age 10 years scaled to 2 standard deviations of in utero non-freeway NOx with 14.7 ppb, first year of life non-freeway NOx with 18.7 ppb, and childhood non-freeway NOx with 9.4 ppb
*p < 0.05

ISSN: 1476-069X