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Exhibit 12. Data for Algorithm

NameShort DescriptionUnits/variable typeLong Description
Hosp IDHospital identifiervarcharUnique identifier for the hospital
Pt_IDPatient identifiervarcharUnique identifier for each patient
SGY_IDSurgery identifiervarcharUnique identifier for each surgery
sSSIsuperficial surgical site infectioninteger [0,1]0 if routine surveillance found no infection; 1 for + superficial SSI
dSSIdeep surgical site infectioninteger [0,1]0 if routine surveillance found no infection; 1 for + deep SSI
oSSIorgan space surgical site infectioninteger [0,1]0 if routine surveillance found no infection; 1 for + organ space SSI
postopabxpostoperative antibioticsinteger [0,1]1 if any antibiotics given between postop day 3 and 30, but not day -1 to -7; else 0
postopcxpostoperative cultureinteger [0,1]1 if any microbiology culture sent between postop day 3 and 30; else 0
postopadmitpostoperative readmissioninteger [0,1]1 if any readmission between postop day 3 and 30; else 0
wbcwhite blood cell countfloat [K/mm3]maximum recorded wbc between postop day 4 and 30
crpC-reactive proteinfloat [mg/dLmaximum recorded crp between postop day 4 and 30
SGY_TypeProcedure Typevarchar[CABG, THA, TKA, Herniorrhaphy]

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Page last reviewed December 2012
Internet Citation: Exhibit 12. Data for Algorithm. December 2012. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/final-reports/ssi/ssiexh12.html