About The Study: This cohort study shows that the number of infants in Sweden who do not receive intramuscular vitamin K administration at birth to prevent bleeding episodes continues to be low but is increasing, and these infants have a significantly higher associated risk of bleeding episodes, including intracranial hemorrhages. These findings suggest the importance of intramuscular vitamin K administration in the newborn period to prevent bleeding episodes and the need for continued education of parents and caregivers on its significance.
Corresponding Author: To contact the corresponding author, Eleni Simatou, MD, email eleni.simatou@ki.se .
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(doi:10.1001/jamapediatrics.2026.2606)
Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.
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JAMA Pediatrics