Association of childhood acute lymphoblastic leukaemia with cancers in family members
2005

Childhood Leukaemia and Family Cancer History

Sample size: 6994345 publication 10 minutes Evidence: high

Author Information

Author(s): Elisabeth Couto, Bin Chen, Kari Hemminki

Primary Institution: Karolinska Institute

Hypothesis

Is there a link between childhood acute lymphoblastic leukaemia (ALL) and a family history of cancers?

Conclusion

Children with twins diagnosed with leukaemia have a much higher risk of contracting acute lymphoblastic leukaemia than the general population.

Supporting Evidence

  • Children with twins diagnosed with leukaemia had a much higher risk of contracting acute lymphoblastic leukaemia than the general population.
  • Only children whose fathers were diagnosed with testicular cancer showed an increase in risk of ALL.

Takeaway

If your twin has leukaemia, you might have a higher chance of getting leukaemia too, but this doesn't seem to be true for other family members.

Methodology

This study used data from the Swedish Family-Cancer Database to analyze the risk of childhood ALL associated with family cancer history.

Potential Biases

Potential bias due to reliance on registry data and the exclusion of participants with missing parental information.

Limitations

The study only considered first-degree relatives and may not account for other familial or environmental factors.

Participant Demographics

Participants were individuals born in Sweden between 1932 and 2002.

Statistical Information

P-Value

2.21

Confidence Interval

1.33–3.45

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1038/sj.bjc.6602867

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