Table 6.

Hazard ratios of vascular access type on endpoints according to age

	VA abandonment		All-cause mortality		Maturation failure
	HR (95% CI)	P value	HR (95% CI)	P value	OR (95% CI)	P value
Age < 80 years
VA type (ref. RC AVF)		0.019				0.015
BC AVF	0.55 (0.18–1.70)	0.299			0.68 (0.39–1.20)	0.184
AVG	2.71 (1.09–6.73)	0.032			0.23 (0.09–0.65)	0.005
Age ≥ 80 years
VA type (ref. RC AVF)				0.002
BC AVF			3.47 (1.34–9.01)	0.011
AVG			6.30 (2.29–17.35)	< 0.001

Adjusted for age, sex, BMI, systolic blood pressure, Hemoglobin, cholesterol, albumin, calcium, phosphorus, DM, CAD, PVD, CVD, CHF, VA type, history of CVC, duplex U/S findings (BA diameter, BA flow, Cephalic vein diameter, Cephalic vein flow)

AVF arteriovenous fistula, AVG arteriovenous graft, BA brachial artery, BMI body mass index, BC brachiocephalic, CAD coronary artery disease, CVC central vein catheter, CVD cerebrovascular disease, CHF congestive heart failure, DM diabetes mellitus, PVD peripheral vascular disease, PSV peak systolic velocity, PTA percutaneous transluminal angioplasty, RC radiocephalic, U/S ultrasonography, HR hazard ratio, CI confidence index, OR odds ratio