A large nationwide study from South Korea, analyzing data from more than half a million births, found no overall increased risk of childhood cancer associated with maternal diabetes. The research, published in a peer-reviewed journal, provides broad reassurance for parents and clinicians.
The study, which used national health insurance data, compared children born to mothers with pre-existing diabetes or gestational diabetes with those born to non-diabetic mothers. After adjusting for potential confounders, the overall incidence of childhood cancer was not significantly different between the groups.
However, the researchers observed a rare site-specific signal: a higher risk of a particular type of cancer, though the absolute numbers were very small. The authors emphasized that this finding must be confirmed in other populations before drawing any conclusions.
Experts not involved in the study noted that the results are consistent with previous research, which has generally shown no strong link between maternal diabetes and childhood cancer overall. They called for further studies to explore the potential site-specific association.
