Leukaemia Mortality in French Communes with Population Increase
Author Information
Author(s): Agnes Laplanche, Florent de Vathaire
Primary Institution: Institut Gustave Roussy
Hypothesis
Is there an excess of leukaemia mortality in persons under 25 living in communes with a large and rapid population increase?
Conclusion
The study found no excess of leukaemia mortality in the population aged 0-24 years residing in French communes with a population increase of at least 100%.
Supporting Evidence
- The observed number of leukaemia deaths was 101, slightly less than the 112.0 expected.
- There was no difference in leukaemia mortality risk according to sex, age, or region.
- The study accumulated 5,270,755 person-years of observation.
Takeaway
The study looked at young people in French towns that grew quickly and found that they didn't have more leukaemia deaths than expected.
Methodology
The study analyzed mortality data from 43 French communes with over 10,000 inhabitants that experienced a population increase of more than 100% between 1968 and 1990.
Potential Biases
Potential bias due to using mortality data instead of incidence data, which may underestimate the true incidence of leukaemia.
Limitations
The study only included communes with more than 10,000 inhabitants, which may limit the generalizability of the findings.
Participant Demographics
Persons aged 0-24 years residing in 43 French communes.
Statistical Information
Confidence Interval
95% CI 73-110
Statistical Significance
p<0.05
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