TABLE 1

Frequency of Refusal of Intramuscular Vitamin K by Parents of Newborns

Study, CountryStudy DesignFrequency of Refusal of Intramuscular Vitamin K, %
Marcewicz et al,3 United StatesChart review of 5 hospitals and 5 birthing centers3 (hospitals); 14.5 (home births); 31 (birthing centers)
Hamrick et al,4 United StatesChart review of 5 community hospitals, 1 academic medical center, and 2 birthing centers0.2–3.2 (community hospitals); 0.26 (academic center); 4.3–8.3 (birthing centers)
Sahni et al,13 CanadaReview of birth documentation in a population-based cohort of live births0.3
Loyal et al,5 United StatesChart review of 35 well-newborn units0.6 (range 0–2.3)
Bernhardt et al,14 New ZealandChart review of 1 tertiary-level maternity and newborn care hospital2.1
Burke et al New,15 New ZealandChart review of 1 tertiary-level maternity and newborn care hospital1.7
Danziger et al,6 United States1 academic medical center2.3