Table 1.

Characteristics of the participants according to their first permanent vascular access

CharacteristicAll (n=7140)Fistula (n=3352)Graft (n=1432)Catheter (n=2356)P Valuea
Age (yr)63.3±15.062.2±14.764.4±14.264.3±15.7<0.001b
Body mass index (kg/m2)25.8±6.025.1±5.327.2±6.926.1±6.2<0.001
Male58.867.845.354.0<0.001
Smoking (%)
 Never40.942.440.938.7<0.001
 Current17.418.215.317.5
 Previous20.522.116.220.7
 Unknown17.914.324.319.3
Race/ethnicity (%)
 White71.873.761.675.2<0.001
 Black15.77.930.518.0
 Asian8.815.84.01.7
 Other3.72.73.95.1
Coronary artery disease44.036.249.651.7<0.001
Congestive heart failure37.628.644.646.3<0.001
Other cardiovascular diseases28.125.127.532.7<0.001
Hypertension83.183.284.781.90.09
Cerebrovascular disease16.013.618.418.1<0.001
Peripheral vascular disease24.520.525.429.5<0.001
Diabetes45.338.255.849.0<0.001
Cancer12.511.012.114.9<0.001
  • Values expressed with a plus/minus sign are the mean ± SD.

  • a P value based on ANOVA for continuous variables and chi-square test for categorical variables, testing for any differences among the three access types.

  • b No significant difference in age between graft and catheter users.