ssiexh15.htm

Exhibit 15. Accuracy of adjudicated algorithm at each participating hospital

Accuracy of Adjudication at DH					Accuracy of Adjudication at IH
		Routine Surveillance					Routine Surveillance
Adjudicated		SSI	no SSI	Total	Adjudicated		SSI	no SSI	Total
	SSI	6	1.42	7.42		SSI	9	0	713
	no SSI	3	1410	1348		no SSI	16	11559	11575
	Total	9	1411.4	1420.4		Total	25	11559	11584

	Sensitivity			66.7%		Sensitivity			36.0%
	Specificity			99.9%		Specificity			100.0%
	Positive Predictive Value			80.9%		Positive Predictive Value			100.0%
	Negative Predictive Value			99.8%		Negative Predictive Value			99.9%
Accuracy of Adjudication at VA SLCHCS					Accuracy of Adjudication at VVMC
		Routine Surveillance					Routine Surveillance
Adjudicated		SSI	no SSI	Total	Adjudicated		No Change
	SSI	2	4	35
	no SSI	2	560	562
	Total	4	564	568

	Sensitivity			50.0%
	Specificity			99.3%
	Positive Predictive Value			33.37%
	Negative Predictive Value			99.6%

DH = Denver Health; IH = Intermountain Healthcare; VA SLC HCS = Veterans Affairs Salt Lake City Health Care System; VVMC = Vail Valley Medical Center; SSI = surgical site infection.

Return to Document

Current as of December 2012

Internet Citation: ssiexh15.htm. December 2012. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/final-reports/ssi/ssiexh15.html