ABPI against Colour Duplex Scan: A Screening Tool for Detection of Peripheral Arterial Disease in Low Resource Setting Approach to Validation

Table 2

Statistics of the area under the curve of the ROC curve for the ABPI against diagnosis of PAD by arterial colour duplex scan.

AUC	Standard error	Asymptomatic Sig.	Asymptomatic 95% CI
			Lower bound	Upper bound
0.91	0.051	0.000	0.809	1.01

Under the nonparametric assumption. Null hypothesis: true area = 0.5.