Patterns of Hemodialysis Catheter Dysfunction Defined According to National Kidney Foundation Guidelines As Blood Flow <300 mL/min

Table 2

Catheter dysfunction*.

	All patients 𝑁=3,364	Catheter as first access 𝑁=718	Catheter as replacement access
			All 𝑁=2,646	Graft 𝑁=1,758	Fistula 𝑁=888
Patient months	23,045	5,663	17,382	11,579	5,803
Catheter sessions	268,363	66,285	202,078	134,250	67,828
Patients with ≥1 CD session	2,132	454	1,678	1,123	555
% Patients with ≥1 CD session	63%	63%	63%	64%	63%
Median time (days) to 1st CD session	95	105	94	89	108
Total CD sessions	19,118	4,024	15,094	10,085	5,009
Rate of CD per patient month at risk	0.83	0.71	0.87	0.87	0.86
Mean # CD sessions among patients with ≥1 CD session	9.0	8.9	9.0	9.0	9.0

*Catheter dysfunction was defined as unplanned blood flow rate during the dialysis session of <300 mL/min.
CD: catheter dysfunction.