Table 4.

Patient characteristics for randomized patients

CharacteristicsButtonhole, n=8Stepladder, n=6
Men7 (88)3 (50)
Age, yr50±1451±16
Comorbidity score3.6±2.33.0±1.5
Race
 White6 (75)5 (83)
 Black00
 Asian1 (13)1 (17)
 Other1 (13)0
Cause of kidney disease
 Diabetes mellitus2 (25)1 (17)
 GNa1 (13)5 (83)
 Otherb5 (63)0 (0)
ESKD vintage, yr (median, IQR)2.2 (0.2–14.0)2.5 (0.6–13.4)
Accessc
 CVC00
 AVF8 (100)6 (100)
 AVG00
Previous accessd
 Had 1 CVC2 (25)1 (17)
 Had >1 CVC4 (50)3 (50)
 No CVC1 (13)2 (33)
 Had 1 AVG/AVF2 (25)0
 Had >1 AVG/AVF01 (17)
 No AVG/AVF5 (63)5 (83)
  • Data are presented as n (%) or mean±SD, unless otherwise indicated. IQR, interquartile range; CVC, central venous catheter; AVF, arteriovenous fistula; AVG, arteriovenous graft.

  • a Included secondary FSGS.

  • b Congenital, renal cell carcinoma (2), hypertension, unknown.

  • c One patient with a buttonhole cannula was missing data.

  • d Two patients with buttonhole cannulas were missing data.