Table 4.

Association of primary access failure and cumulative access survival with access and catheter location.

Outcome	Access type	Access timing	Comparison	HR (95% CI)	p-value
Primary failure	AVF	Post-HD	Ipsilateral vs contralateral catheter	0.94 (0.71–1.26)	0.7
Primary failure	AVG	Post-HD	Ipsilateral vs contralateral catheter	0.94 (0.50–1.76)	0.8
Primary failure	AVF	Post-HD	Right vs left	1.08 (0.80–1.46)	0.6
Primary failure	AVG	Post-HD	Right vs left	0.76 (0.34–1.70)	0.6
Primary failure	AVF	Pre-HD	Right vs left	1.03 (0.74–1.43)	0.9
Cumulative survival	AVF	Post-HD	Ipsilateral vs contralateral catheter	2.48 (1.33–7.33)	0.009
Cumulative survival	AVG	Post-HD	Ipsilateral vs contralateral catheter	2.04 (0.92–5.38)	0.07
Cumulative survival	AVF	Post-HD	Right vs left	1.86 (0.79–4.38)	0.2
Cumulative survival	AVG	Post-HD	Right vs left	1.22 (0.45–3.26)	0.7
Cumulative survival	AVF	Pre-HD	Right vs left	1.56 (0.67–4.16)	0.3

Pre-HD indicates prior to HD initiation; post-HD corresponds to after initiation of HD.

AVF, arteriovenous fistula; AVG, arteriovenous graft; HD, hemodialysis;