TABLE I.

Geographic Prevalence of MSSA and MRSA Nasal Colonization

Study	Geographic Location	Patient Population	No. of Patients	MSSA Nasal Colonization Rate* (No.)	MRSA Nasal Colonization Rate (No.)
Berthelot et al.31 (2010)	France	Orthopaedic patients on day of hospital admission	3908	20.2% (790)	0.6% (23)
Yano et al.23 (2009)	Japan	Orthopaedic patients on day of hospital admission	2423	NR	2.6% (63)
Gorwitz et al.32 (2008)	Multiple sites in U.S.	National Health and Nutrition Examination Survey participants	9004	28.7% (2442)†	1.5% (208)†
Price et al.30 (2008)	Western U.S.	Orthopaedic outpatients	284	28.5% (81)	1.8% (5)
Mertz et al.33 (2007)	Switzerland	Inpatients, health-care workers, and blood donors	2966	36.5% (1082)	0.6% (18)

^*NR = not reported.

^†These numbers are the weighted percentages as given in Gorwitz et al.