Childhood Acute Leukaemia in France: A Study of Spatial Patterns
Author Information
Author(s): Bellec S, Hémon D, Rudant J, Goubin A, Clavel J
Primary Institution: INSERM, U754, Villejuif, France
Hypothesis
This study aimed to investigate the spatial and space–time distributions of cases of childhood acute leukaemia (CL) during 1990–2000 over the whole French territory.
Conclusion
The study found a statistically significant spatial heterogeneity in the incidence of childhood acute leukaemia during 1990–1994, particularly in isolated areas with higher population density.
Supporting Evidence
- A significant overdispersion of 5.5% was found for children aged 0–4 years living in isolated areas with more than 50 inhabitants per km2.
- Spatial autocorrelation was observed in the incidence of childhood acute leukaemia over the whole period.
- Overall spatial heterogeneity was evidenced with Rogerson's statistic for the 0–4 year age group.
Takeaway
The researchers looked at where and when children got leukaemia in France and found that some areas had more cases than others, especially in places with lots of people living close together.
Methodology
The study used spatial and spatio-temporal methods to analyze data from the French national registry of childhood haematopoietic malignancies.
Potential Biases
Potential bias could stem from the method used to estimate population at a small geographical level.
Limitations
The study's exploratory nature and the use of multiple testing may increase the risk of false positive results.
Participant Demographics
Children aged up to 14 years living in metropolitan France.
Statistical Information
P-Value
p=0.04
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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