Table 3.

AVF characteristics by cannulation technique

	Total		BHs		BHb		RL		AP
	Number	Percent	Number	Percent	Number	Percent	Number	Percent	Number	Percent
Female/male	395/933	30/70	238/495	32/68	86/298	22/78	49/118	29/71	22/22	50/50
Age (mean. ± SD)	64.3 (±14.9)		65.0 (±14.8)		61.3 (±15.6)		67.6 (±15.1)		65.7 (±14.9)
Number of AVF days/AVF (mean. ± SD)	746 (± 532)		723 (±544)		867 (±534)		623 (±413)		524 (±504)
Number of AVF days (number. %)	990,405	100	530,322	54	332,944	34	104,041	11	23,098	2
Number of AVFs using the technique (number. %)	1328	100	733	55	384	29	167	13	44	3

Abbreviations: SD Standard Deviation, BHs Buttonhole sharp, BHb Buttonhole blunt, RL Ropeladder, AP Area puncture