Table 1.

Treatments distribution between zones, for catheters (group 1) and AV fistulae (group 2)

Zones	Group 1 n	%	Group 2 N	%	P-value
A zone	695	37.0	704	37.7	0.70
B zone	150	8.0	458	24.5	<0.0001
C zone	604	32.2	390	21.0	<0.0001
D zone	272	14.5	247	13.2	0.28
E zone	77	4.1	19	1.0	<0.0001
F zone	79	4.2	50	2.6	0.01
Total	1877	100	1868	100

A to F zones correspond to treatments distribution in Figure 1 and Figure 2, n, number of treatments; %, percentage of treatments.