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

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

Non-Freeway NOx (ppb) BMI Growth Per Yeara
Effect (95% CI)
BMI at Age 10 Yearsa
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)*
  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
  2. *p < 0.05