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Newborn Vitamin K Prophylaxis and the Risk of Bleeding – JAMA
JAMA/X
Nov 14, 2026, 14:03

Newborn Vitamin K Prophylaxis and the Risk of Bleeding – JAMA

JAMA shared a post on LinkedIn about recent articles, adding:

“A study in JAMA of more than 5 million US births indicates that more infants are not receiving intramuscular hashtag VitaminK at birth, despite its routine use to prevent vitamin K deficiency bleeding.

Nonreceipt of intramuscular VitaminK at birth increased from about 3 percent in 2017 to nearly 7 percent in 2025.

The study found higher risks of bleeding, intracranial (within the brain or skull) bleeding, and death with a bleeding diagnosis among infants who did not receive vitamin K, consistent with findings from a separate study in Sweden published in JAMA Pediatrics.

These data support the public health importance of maintaining vitamin K prophylaxis at birth.”

Title 1: Vitamin K Prophylaxis in Newborns and Bleeding in Infancy

Authors: Eleni Simatou, Eleni Tsamantioti, Anna Hallström, Olof Stephansson, Neda Razaz, Martina Persson, Jenny Bolk

Read the Full Article on JAMA Pediatrics

Newborn Vitamin K Prophylaxis and the Risk of Bleeding - JAMA

Title 2: Nonreceipt of Newborn Vitamin K and Risk of Bleeding

Authors: Kristan Scott, Sara C. Handley, Justin Y. Lo, Jennifer F. Culhane, Jay Greenspan, Lindsey A. Knake, Jaspreet Loyal, Kathryn M. McKenney, Evan Miller, Timothy D. Nelin, Moeun Son, Heather H. Burris, Kevin Dysart

Read the Full Article on JAMA

Newborn Vitamin K Prophylaxis and the Risk of Bleeding - JAMA

Stay updated on all scientific advances with Hemostasis Today.

Anna Hallström Eleni Simatou Eleni Tsamantioti Evan Miller Health Heather H. Burris Hematology Hemostasis Hemostasis News Hemostasis Today JAMA Jaspreet Loyal Jay Greenspan Jennifer F. Culhane Jenny Bolk Justin Y. Lo Kathryn M. McKenney Kevin Dysart Kristan Scott Lindsey A. Knake Martina Persson Medicine Moeun Son Neda Razaz Olof Stephansson Sara C. Handley Timothy D. Nelin
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