. 2012 Nov 2;13:146. doi: 10.1186/1471-2369-13-146

Table 4.

Exit from trial and/or end of study events for ethanol lock and heparin lock arms are shown

Reason for exit from the trial	Ethanol Lock	Heparin Lock	Statistical analysis (where appropriate)
Reason for exit from the trial	Ethanol Lock	Heparin Lock	IRR (95% CI ); p value
Catheters removed (total)	25	24	IRR 0.53 (0.30 -0.93)
Catheters removed (total)	25	24	P=0.03
Catheter no longer required	6	12	IRR 0.25 (0.10-0.68)
Catheter no longer required	6	12	P=0.006
Infectious complications	1	4	See Table 2
Non infectious reasons for exit from trial	18*	8^#

*Split catheter (1), flow problems or blocked catheter (5), intensive care admission unrelated to the trial (1), patient request (4), reduced to twice weekly dialysis (2), not specified (1), relocation to a non trial site (1), non-compliance with trial protocol (1), deceased (1), ethanol supply temporarily ceased (1).

#Catheter fell out (1), flow problems or blocked catheter (3), bleeding from catheter site (1), patient non compliance with dialysis (1), reduced to twice weekly dialysis (1), relocation to non trial site (1).