TABLE 1

Studies Included in Review

Study First AuthorYear Published (Time Period of Study)Study TypeSample SizeCountryStudy First Author
Peltola2010 (1983–2005)Prospective131FinlandPeltola
Jagodzinksi2009 (2001–2007)Prospective37England and AustraliaJagodzinksi
Zaoutis2009 (2000–2005)Retrospective (database search)1969US (29 hospitals)Zaoutis
Bachur2007 (1995–2000)Retrospective (chart review)29US (Boston)Bachur
Jaberri2002 (1996–1998)Prospective12IranJaberri
Vinod2002 (1997)Retrospective (chart review)32AustraliaVinod