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The problem
Intervention: Measurement and assessment of prenatal near-roadway air pollution exposure using geocoded residence data and CALINE4 dispersion modeling, with assessment of child neurodevelopment at 6, 12, and 24 months
Who it was tested with: 605 mother-child pairs of primarily Mexican-American descent in a rural area (Salinas, California).
Children or communities are compared with a group that did not receive the intervention, or followed over years. This is the design that best separates what the intervention did from everything else that changed.
"The Center for the Health Assessment of Mothers and Children of Salinas (CHAMACOS) Study is a prospective birth cohort that began in 1999 with 605 mother-child pairs of primarily Mexican-American descent. Maternal residence during pregnancy was geocoded using ArcGIS and prenatal NRAP exposure was assigned using the CALINE4 line source dispersion model. We used composite Bayley Scale scores for cognitive and motor development, and created separate linear regression models at 6, 12, and 24 months of age." This design follows a longitudinal cohort structure with measured outcomes at multiple timepoints and adjustment for confounders, constituting an experimental study design.
Preliminary findings with modeled rather than measured air pollution exposure; no control group though regression adjusted for confounders; single ethnic/geographic population limits generalizability; multiple comparisons across timepoints without apparent correction
Across countries and designs
1 study · 1 country
