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Volume 18, Number 6—June 2012

CME ACTIVITY - Research

Trends in Invasive Infection with Methicillin-Resistant Staphylococcus aureus, Connecticut, USA, 2001–2010

James L. HadlerComments to Author , Susan Petit, Mona Mandour, and Matthew L. Cartter
Author affiliations: Yale University School of Public Health, New Haven, Connecticut, USA (J.L. Hadler); Connecticut Department of Public Health, Hartford, Connecticut, USA (S. Petit, M. Mandour, M.L. Cartter)

Main Article

Table 1

Cases and incidence rates of MRSA infection by place of onset and association with healthcare and demographic features, Connecticut, USA, 2001–2010*†

Demographic characteristic All MRSA
HO
HACO
CA
No. Rate No. Rate No. Rate No. Rate
Total 8,758 25.2 2,753 7.9 5075 14.6 920 2.6
Sex
M 5,290 31.2 1,620 9.6 3,043 18.0 620 3.7
F 3,465 19.4 1,132 6.3 2,030 11.4 300 1.7
Age-group, y
<18 127 1.5 65 0.8 25 0.3 37 0.4
18–34 379 5.3 115 1.6 148 2.1 116 1.6
35–49 1,082 13.0 308 3.8 529 6.4 244 2.9
50–64 1,955 31.4 642 10.3 1088 17.5 222 3.6
>65 5,205 111.5 1,619 34.7 3,279 70.2 301 6.4
Race/ethnicity‡
White, non-Hispanic 4,649 25.6 1,338 7.4 2,765 15.2 537 3.0
Black, non-Hispanic 815 35.9 232 10.2 466 20.5 116 5.1
Hispanic 467 16.5 107 3.8 245 8.6 115 4.1
Town size§
Large 1,930 31.6 597 9.8 1067 17.5 265 4.3
Medium 1,969 26.2 635 8.5 1,174 15.6 159 2.1
Small 4,841 22.9 1,511 7.1 2,826 13.3 496 2.3

*MRSA, methicillin-resistant Staphylococcus aureus; HO, hospital onset; HACO, health care–associated community onset; CA, community associated.
†Incidence rates = average annual number of cases per 100,000 group-specific population using 2005 estimated population as the denominator.
‡Race-ethnicity only determined for all categories from 2004–2010. Denominator is 2007 estimated population.
§Large >100,000 population; medium 50,000–99,999 population; small <50,000 population.

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