Table 1 Survey of practicing nephrologists on timing of preemptive vascular access placement

Age, years, mean(SD)

46.1 (13.0)

43.1 (7.2)

51 (10.4)

Years in practice, median [IQR]

10.0 [2.0,21.0]

8.5 [6.0,12.0]

15.0 [10.0, 25.0]

“How many months before the initiation of hemodialysis do you think an AV fistula should be created?” mean (SD)

6 (2)

6 (2)

6 (3)

“At what estimated GFR should an AV fistula be created?” mean (SD)

18.0 (4.0) ml/min/1.73 m²

18.6 (3.8) ml/min/1.73 m²

17.5 (3.6) ml/min/1.73 m²

“Do you think that surgery to create an AV fistula should be done when the likelihood of developing ESRD in the next year is at or above”, % mean (SD)

67 (14)%

66 (19)%

68 (17) %