The use of the temporal scan statistic to detect methicillin-resistant Staphylococcus aureus clusters in a community hospital

Table 1 Summary characteristics of 735 cases of MRSA, August 1, 2006 - February 28, 2011

MRSA Characteristics	Incidence rate of MRSA (cases per 10,000 patient days)
Month¹
January	7.99
February	8.66
March	11.87
April	13.29
May	10.58
June	6.90
July	9.79
August	9.65
September	9.24
October	9.17
November	9.34
December	9.49
Year²
2006 (August – December)	6.14
2007 (January – December)	7.28
2008 (January – December)	5.97
2009 (January – December)	9.98
2010 (January – December)	16.42
2011 (January – February)	10.49
Season¹
Spring (April – June)	10.26
Summer (July – September)	9.56
Fall (October – December)	9.33
Winter (January – March)	9.50
Service³
Acute care	10.12
Complex care	9.09
Hospice	14.11
Intensive care unit	9.00
Internal medicine	15.11
Oncology	3.90
Pediatrics	0.22
Psychiatry	6.08
Rehabilitation	8.57
Surgery	17.41
Ward³
S1 (Surgery)	19.39
S2 (Surgery)	15.14
M1 (Internal medicine)	23.14
C1 (Complex continuing care)	9.15
C2 (Complex continuing care)	8.78

MRSA = Methicillin-resistant Staphylococcus aureus.
¹Incidence rate presented is based on an average for that specific period.
²Incidence rate presented is the total for that specific year.
³Incidence rate presented is the total for that service or ward from August 1, 2006 to February 28, 2011.

ISSN: 1471-2334