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. Author manuscript; available in PMC: 2014 May 12.
Published in final edited form as: Am J Kidney Dis. 2012 Jul 21;60(6):983–989. doi: 10.1053/j.ajkd.2012.06.014

Table 1.

Selection of patients for statistical analysis and primary failure rates

Access type total unknown
outcome
successfully
cannulated
failed before
cannulation
Primary failure
rate (%)
AVF with ipsilateral catheter 69 7 31 31 50%
  L AVF, L catheter 28 3 14 11 44%
  R AVF, R catheter 41 4 17 20 54%
AVF with contralateral catheter 164 13 71 80 53%
  L AVF, R catheter 156 12 68 76 53%
  R AVF, L catheter 8 1 3 4 57%
AVF without catheter 224 32 87 105 55%
  L AVF 181 23 72 86 54%
  R AVF 43 9 15 19 56%
AVG with ipsilateral catheter 27 1 17 9 35%
  L AVG, L catheter 10 0 6 4 40%
  R AVG, R catheter 17 1 11 5 31%
AVG with contralateral catheter 62 6 35 21 38%
  L AVG, R catheter 61 6 34 21 38%
  R AVG, L catheter 1 0 1 0 0%

Unless otherwise indicated values shown are number of patients.

AVF, arteriovenous fistula; AVG, arterioventous graft; L, left; R, right