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Volume 5, Number 3—June 1999

Dispatch

Application of Data Mining to Intensive Care Unit Microbiologic Data1

Stephen A. MoserComments to Author , Warren T. Jones, and Stephen E. Brossette
Author affiliations: The University of Alabama at Birmingham, Birmingham, Alabama, USA

Main Article

Table 3

Representative events identified and considered of potential interest

Partition
Left Denominator Right Numerator 1 2 3 4 5 6 7 Interpretation
Staphylococcus 
 aureus Source
 TRACHASPc ==> R~Oxacillina, b R~Clindamycin R~Erythromycin 0/10 0/8 7/14 Increase in the incidence of oxacillin (ORSA), clindamycin and erythromycin resistance in all S. aureus isolated from tracheal aspirates.
NSNosod ==> R~Ceftazidime 3/88 11/70 Increase in incidence of ceftazidime resistance in all nosocomial isolates.
NP_GNRe ==> R~Piperacilli 0/17 6/14 Increase in the LocSICU incidence of piperacillin resistance in non-pseudo-monas gram-negative bacilli isolated from NSNoso.
NP_GNR ==> R~Piperacillin 1/12 0/14 4/11 4/8 Increase in the LocSICUf incidence of piperacillin resistance in non-pseudo-monas, nosocomial gram- negative bacilli from the SICU.
NSNoso LocNICUg ==> S. aureus 3/26 3/26 2/28 6/27 5/20 3/11 Increase in the incidence of nosocomial S. aureus in nosocomial isolates from the NICU.

aR, resistant.
bOxacillin, resistance implies resistance to amoxycillin/clavulanic acid, cephalothin, and cefazolin.
cSourceTRACHASP, tracheal aspirates.
dNSNoso, nosocomial (3 days from admission).
eNP_GNR, non-pseudomonas gram-negative rod.
fLocSICU, location, surgical intensive care unit (SICU).
gLocNICU, location, neonatal intensive care unit (NICU).

Main Article

1Presented in part at the International Conference on Emerging Infectious Diseases, March 8-11, 1998, Atlanta, Georgia.

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