The majority of newborns in the United States receive intramuscular (IM) vitamin K for prophylaxis against vitamin K deficiency bleeding (VKDB). Oral vitamin K is less effective than IM vitamin K in preventing VKDB but is widely used in Europe and by some in the United States when parents refuse IM vitamin K for their newborn. Our aim was to assess the practices, opinions, and knowledge of newborn clinicians regarding oral vitamin K prophylaxis when parents refuse IM vitamin K.
We conducted an electronic survey of newborn clinicians from 3 academic medical centers in California, Iowa, and Connecticut. Descriptive statistics and χ2 tests were performed.
Of 160 newborn clinicians at 3 sites, 110 (69%) completed the survey. Of respondents, 58 (53%) believed the incidence of IM vitamin K refusal is increasing and had prescribed or recommended oral vitamin K at least once. Regarding knowledge, 32 (28%) and 23 (20%) respondents did not know whether oral vitamin K decreases the risk of early- and late-onset VKDB, respectively. There were no significant differences in opinions, knowledge, or practices across institutions or practice settings (NICU, well-newborn nursery, or both) (P > .5.05).
Our study findings suggest that newborn clinicians may lack knowledge about the effectiveness of oral vitamin K in preventing VKDB. More information is needed about oral vitamin K regimens and outcomes of newborns who receive oral vitamin K.
This research output has an Altmetric Attention Score of 32. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 18 September 2026.
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Altmetric has tracked 34,606,677 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 95th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
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We're also able to compare this research output to 43 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 95% of its contemporaries.
