Table 1.

Selected patient demographics of study group

CharacteristicsNative Kidney Failure (n=509,643)Failed Transplant (n=16,728)P Value
Mean age, yr (SD)62.8 (15.7)36.3 (14.9)<0.001
Sex, % women43.339.6<0.001
Race, %<0.01
White66.166.9
 Black28.528.2
 Other5.44.9
Mean BMI, kg/m229.1 (7.8)27.0 (7.0)<0.001
Comorbidities, %
 PVD14.79.5<0.001
 Diabetes54.339.5<0.001
 Hypertension85.787.6<0.001
 Coronary heart disease34.623.0<0.001
 Congestive heart failure33.618.7<0.001
Other variables, %
 Institutionalized7.92.8<0.001
 Current smoker6.64.8<0.001
 Employed10.623.9<0.001
 Nephrology referral
  None36.36.5
  <6 mo13.613.1<0.001
  6–12 mo23.111.6
  >12 mo26.968.8
Access type used, %
 Arteriovenous fistula15.527.7<0.001
 Arteriovenous graft3.66.9
 Central venous catheter80.865.4
Access type in place, %
 Arteriovenous fistula32.540.0<0.001
 Arteriovenous graft5.48.6
 Neither62.151.4
  • Summary statistics represent percentages unless otherwise stated. BMI, body mass index; PVD, peripheral vascular disease.