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Table 2 Surgical site infections following coronary artery bypass graft procedures, by infection type and detection time, 2003–2012

From: Surgical site infections following coronary artery bypass graft procedures: 10 years of surveillance data

Infection type/detection time Sternal site incisions (N = 14,546)# Harvest site incisions (N = 15,781)
  n Rate* (95% CI) % n Rate* (95% CI) %
Superficial SSIs 331 2.3 (2.0-2.5)   1,144 7.3 (6.9-7.7)  
  In-hospital 151 1.0 (0.9-1.2) 45.6 299 1.9 (1.7-2.1) 26.1
  Post-discharge 180 1.2 (1.1-1.4) 54.4 845 5.4 (5.0-5.7) 73.9
Complex SSIs 187 1.3 (1.1-1.5)   40 0.3 (0.2-0.4)  
  In-hospital 111 0.8 (0.6-0.9) 59.4 25 0.2 (0.1-0.2) 62.5
  Post-discharge 76 0.5 (0.4-0.7) 40.6 15 0.1 (0.1-0.2) 37.5
All infections 518 3.6 (3.3-3.9)   1,184 7.5 (7.1-7.9)  
  In-hospital 262 1.8 (1.6-2.0) 50.6 324 2.1 (1.8-2.3) 27.4
  Post-discharge 256 1.8 (1.6-2.0) 49.4 860 5.5 (5.1-5.8) 72.6
  1. *Per 100 procedures.
  2. #The total number of sternal site incisions (14,546) were more than the total number of patients (14, 517), as 29 patients underwent a repeat CABG surgery over the reporting period.