Proactive Risk Assessment of Surgical Site Infection in Ambulatory Surgery Centers

Exhibit 10. Probability variations used in the sensitivity analyses

Event Probability Range Considered
Event 21 Patient fails to follow instructions for smoking cessation 0.13 to 0.30
Event 28 Patient colonized with MRSA 0.10 to 0.30
Event 29 Non-MRSA patient 0.90 to 0.70
Event 136 Fail to wash hands properly (OR staff) 0.12 to 0.40
Event 142 Staff not well-trained in infection control 0.10 to 0.30
Event 173 Staff fails to provide patient with instructions for weight reduction 0.50 to 0.90
Event 182 Fail to administer indicated antibiotics (staff) 0.20 to 0.40
Event 203 Fail to wash hands (non-OR staff) 0.10 to 0.60
Event 404 Poor postoperative directions to patient 0.15 to 0.50
Event 405 Patient understands, but does not follow, postoperative directions 0.10 to 0.25
Event 622 Alcoholic patient fails to comply with instruction for not drinking prior to the operation 0.13 to 0.30
Event 642 Fail to protect patient effectively (failure related to skin prep, antibiotics admin, shaving surgical site, etc.) 0.05 to 0.20

Note: MRSA = methicillin resistant Staphlococcus aureus; OR = operating room.

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Page last reviewed April 2013
Internet Citation: Exhibit 10. Probability variations used in the sensitivity analyses. April 2013. Agency for Healthcare Research and Quality, Rockville, MD.