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. Author manuscript; available in PMC: 2012 May 28.
Published in final edited form as: Clin Transl Sci. 2011 Oct;4(5):338–345. doi: 10.1111/j.1752-8062.2011.00353.x

Blood stream infections

Organism of interest1 Any organism
Case Case
Positive blood culture for an organism of interest AND No positive culture with the same organism at other body site(s) within 14 days prior to positive blood culture Positive blood culture with any organism2AND No positive culture with the same organism at other body site(s) within 14 days prior to positive blood culture
Control Control
No positive blood culture for any organism No positive blood culture for any organism OR Only one culture with common skin contaminant within 2 day period
Noncase, noncontrol Noncase, noncontrol
Positive blood culture with an organism NOT of interest OR ICD-9-CM code for sepsis and no/negative blood culture OR Positive culture with the same organism at other body site(s) within 14 days prior to a positive blood culture ICD-9-CM code for sepsis and no/negative blood culture OR Positive culture with the same organism at other body site(s) within 14 days prior to a positive blood culture