TABLE 1.
Frequency of Refusal of Intramuscular Vitamin K by Parents of Newborns
| Study, Country | Study Design | Frequency of Refusal of Intramuscular Vitamin K, % |
|---|---|---|
| Marcewicz et al,3 United States | Chart review of 5 hospitals and 5 birthing centers | 3 (hospitals); 14.5 (home births); 31 (birthing centers) |
| Hamrick et al,4 United States | Chart review of 5 community hospitals, 1 academic medical center, and 2 birthing centers | 0.2–3.2 (community hospitals); 0.26 (academic center); 4.3–8.3 (birthing centers) |
| Sahni et al,13 Canada | Review of birth documentation in a population-based cohort of live births | 0.3 |
| Loyal et al,5 United States | Chart review of 35 well-newborn units | 0.6 (range 0–2.3) |
| Bernhardt et al,14 New Zealand | Chart review of 1 tertiary-level maternity and newborn care hospital | 2.1 |
| Burke et al New,15 New Zealand | Chart review of 1 tertiary-level maternity and newborn care hospital | 1.7 |
| Danziger et al,6 United States | 1 academic medical center | 2.3 |