Prenatal exposure to particulates and anthropometry through 9 years of age in a birth cohort
Authors' conclusion
Even at low levels of air pollution, prenatal PM10 exposure was associated with higher zBMI in childhood.
Study context
- Population
- Children with BMI z-scores derived from reported anthropometry at paediatric visits at 0–3 and 7–9 years1,191 at 7–9 years
- Participants
- 4,370 children
- Exposure
- Prenatal particulate matter (PM10) and PM2.5 exposure
- Outcome
- BMI z-score (zBMI)
- Follow-up
- 0-3 and 7-9 years
Methodological detailslinear mixed models, six exposure windows
- Linear mixed models
- Six exposure windows
Main finding
As reported in the abstract
zBMI per IQR increase in PM10 exposure during first 2 weeks of pregnancy
ZBMI at 0-3 years
0.05
95% CI 0.01–0.10
PM10 exposure, first 2 weeks of pregnancy (per IQR increase)
ZBMI at 7-9 years
0.14
95% CI 0.02–0.23
PM10 exposure, first 2 weeks of pregnancy (per IQR increase)
Observational data: associations, not effects.
Further findings
| Outcome | B (95% CI) |
|---|---|
| zBMI per IQR increase in PM2.5 exposure during final 2 weeks of gestation · 7-9 years | 0.12 (0.04–0.22) |
Original publication
Prenatal exposure to particulates and anthropometry through 9 years of age in a birth cohort. Pediatr Obes. Published 9 January 2025. doi:10.
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