Road Traffic and Childhood Leukemia: The ESCALE Study
Author Information
Author(s): Amigou Alicia, Sermage-Faure Claire, Orsi Laurent, Leverger Guy, Baruchel André, Bertrand Yves, Nelken Brigitte, Robert Alain, Michel Gérard, Margueritte Geneviève, Perel Yves, Mechinaud Françoise, Bordigoni Pierre, Hémon Denis, Clavel Jacqueline
Primary Institution: INSERM (Institut National de la Santé et de la Recherche Médicale)
Hypothesis
Does exposure to road traffic exhaust fumes increase the risk of childhood leukemia?
Conclusion
Living close to heavy-traffic roads may increase the risk of childhood leukemia.
Supporting Evidence
- Acute leukemia was significantly associated with traffic NO2 concentration at the place of residence.
- Presence of a heavy-traffic road within 500 m was linked to a higher risk of acute leukemia.
- High density of heavy-traffic roads within 500 m was associated with increased risk of acute leukemia.
Takeaway
Kids who live near busy roads might get sick with leukemia more often than those who don't.
Methodology
A national registry-based case-control study with 763 cases and 1,681 controls, using telephone interviews and geocoded addresses to assess exposure to traffic.
Potential Biases
Potential selection bias due to the exclusion of controls with only cell phones.
Limitations
The study relied on residential addresses, which may not reflect lifetime exposure, and the last address was the only one geocoded.
Participant Demographics
Children under 15 years old, with cases identified from a national registry and controls matched on age and sex.
Statistical Information
P-Value
p<0.05
Confidence Interval
1.0–1.5
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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