Exhibit 10. Probability variations used in the sensitivity analyses

Proactive Risk Assessment of Surgical Site Infection in Ambulatory Surgery Centers

EventProbability Range Considered
Event 21 Patient fails to follow instructions for smoking cessation0.13 to 0.30
Event 28 Patient colonized with MRSA0.10 to 0.30
Event 29 Non-MRSA patient0.90 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 control0.10 to 0.30
Event 173 Staff fails to provide patient with instructions for weight reduction0.50 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 patient0.15 to 0.50
Event 405 Patient understands, but does not follow, postoperative directions0.10 to 0.25
Event 622 Alcoholic patient fails to comply with instruction for not drinking prior to the operation0.13 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: Proactive Risk Assessment of Surgical Site Infection in Ambulatory Surgery Centers. April 2013. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/final-reports/stpra/stpraexh10.html