Diagnostic accuracy of existing methods for identifying diabetic foot ulcers from inpatient and outpatient datasets

Table 2 Diabetic foot ulcer prevalence according to five methods (N = 866,881)

Method	Cases	Prevalence	Agreement among methods*
			Holzer	Mayfield	Ramsey	Harrington	New
Holzer	31,516	3.64%	-	90.1%	75.3%	89.7%	85.0%
Mayfield	33,533	3.87%	84.7%	-	70.7%	82.0%	79.9%
Ramsey	23,721	2.74%	100.0%	100.0%	-	100.0%	100.0%
Harrington	28,300	3.26%	99.9%	97.2%	83.8%	-	94.7%
New	26,801	3.09%	100.0%	100.0%	88.5%	100.0%	-

* Indicates percent patients identified by the method on the row as having a diabetic foot ulcer is also identified as having an ulcer according to the method on the column. For example, Holzer method identified 84.7% of all patients identified by Mayfield method as having an ulcer.

ISSN: 1757-1146