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Rebecca Voelker

JAMA. 1998;279:420.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Six years after it began publishing studies on whether vitamin K given to newborns increases their risk of childhood cancer, the BMJ has weighed in with 4 new entries that continue the debate.

Intramuscular vitamin K given at birth to prevent bleeding was recommended in 1991 in the United Kingdom. At about the same time, however, an association between vitamin K prophylaxis and childhood cancer was reported. But later studies reported no evidence to support such a link.

In its January 17 issue, the BMJ published 4 studies that show a resolution to questions about cancer risks remains elusive. Even though all 4 studies report very low or no risk for the development of solid tumors, results for acute lymphoblastic leukemia were less reassuring. One of the reports, a population-based, case-control study of 646 children in Scotland, showed no increased cancer risk. Another, an ecological study of children . . . [Full Text of this Article]

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