Analgesic use during pregnancy and risk of infant leukaemia: A Children's Oncology Group study
2011

Analgesic Use During Pregnancy and Infant Leukaemia Risk

Sample size: 764 publication Evidence: moderate

Author Information

Author(s): Ognjanovic S, Blair C, Spector L G, Robison L L, Roesler M, Ross J A

Primary Institution: University of Minnesota

Hypothesis

Is there an association between analgesic use during pregnancy and the risk of infant leukaemia?

Conclusion

Overall, analgesic use during pregnancy was not significantly associated with the risk of infant leukaemia.

Supporting Evidence

  • Infant leukaemia is likely initiated in utero.
  • Regular use of aspirin or NSAIDs has been associated with reduced risk of many adult cancers.
  • Two studies of adult leukaemia suggested a protective effect with aspirin.
  • Few women reported using analgesics more than 25 times before pregnancy knowledge.

Takeaway

The study looked at whether taking pain relievers while pregnant could lead to babies getting leukaemia, and found no strong link.

Methodology

Telephone interviews were conducted with mothers of 441 infant leukaemia cases and 323 controls, using unconditional logistic regression.

Potential Biases

There is a concern regarding selection bias and residual confounding.

Limitations

The small sample size for some subgroup analyses and potential recall bias may affect the results.

Participant Demographics

Mothers of cases were more likely to be younger, of Hispanic ethnicity, of lower income, and to report morning sickness compared to controls.

Statistical Information

Confidence Interval

0.37–0.97

Digital Object Identifier (DOI)

10.1038/sj.bjc.6606046

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