Improving the Measurement of Surgical Site Infection Risk Stratification/Outcome Detection

Exhibit 12. Data for Algorithm

Name Short Description Units/variable type Long Description
Hosp ID Hospital identifier varchar Unique identifier for the hospital
Pt_ID Patient identifier varchar Unique identifier for each patient
SGY_ID Surgery identifier varchar Unique identifier for each surgery
sSSI superficial surgical site infection integer [0,1] 0 if routine surveillance found no infection; 1 for + superficial SSI
dSSI deep surgical site infection integer [0,1] 0 if routine surveillance found no infection; 1 for + deep SSI
oSSI organ space surgical site infection integer [0,1] 0 if routine surveillance found no infection; 1 for + organ space SSI
postopabx postoperative antibiotics integer [0,1] 1 if any antibiotics given between postop day 3 and 30, but not day -1 to -7; else 0
postopcx postoperative culture integer [0,1] 1 if any microbiology culture sent between postop day 3 and 30; else 0
postopadmit postoperative readmission integer [0,1] 1 if any readmission between postop day 3 and 30; else 0
wbc white blood cell count float [K/mm3] maximum recorded wbc between postop day 4 and 30
crp C-reactive protein float [mg/dL maximum recorded crp between postop day 4 and 30
SGY_Type Procedure Type varchar [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