Oscillometric pulse wave analysis for detecting low flow arteriovenous fistula

BMC Nephrology

Table 2 Comparison of fistula and non-fistula measurements

						Overall Median	Fi versus nFi status
Parameter	Median_Fi (n = 53)	min/max	Median_nFi (n = 53)	min/max	p (Wilcoxon)	(Fi and nFi, n = 106)	Sensitivity	Specificity	p (Fisher's exact)
Slope2 [relative amplitude/ms]	-0,0015	-0.00408/ 0.00497	-0,00322	-0.00564/ -0.00183	< 0.001	-0,00269	0,79	0,79	< 0.001
Slope∑ [relative amplitude/ms]	0,01094	-0.00022/ 0.01383	0,01187	0.00893/ 0.01666	0,006	0,01146	0,64	0,64	0,003
AMP [relative volumetric change]	1850	473/ 5236	725	190/ 2180	< 0.001	1030	0,81	0,81	< 0.001
Vf [ml/min]	795	247/ 2128	58	2/ 168	< 0.001	207	1	1	< 0.001
A_brach. [mm²]	32	16/ 71	19	9/ 44	< 0.001	25	0,7	0,72	< 0.001

Lower case index indicating fistula (Fi) and non-fistula (nFi) measurements, for discription of variables see method section of the main document

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