Table 1.

Baseline patient characteristics by PDC frequency

CharacteristicHigh FrequencyIntermediate FrequencyLow FrequencyIncluded FacilitiesExcluded Facilities
Facilities (n)429186163778152
Patients (n)13,7495778497124,4984651
Age (yr)62.0±14.261.3±15.261.6±14.961.7±14.660.9±15.5
Male (%)58.255.658.157.657.0
Black (%)5.326.017.112.610.9
Body mass index (kg/m2)23.4±4.925.4±6.125.5±6.224.3±5.625.0±5.7
Dialysis vintage (yr)5.6±6.14.1±4.54.3±4.95.0±5.64.7±5.4
Single pool Kt/V1.39±0.301.46±0.301.45±0.311.42±0.301.47±0.30
Dialysis time (min)236±36224±33229±37232±36234±38
Albumin (g/dl)3.8±0.53.7±0.53.7±0.53.8±0.53.8±0.5
Calcium (mg/dl)9.2±0.99.2±0.99.3±0.99.3±0.99.3±0.9
Phosphorus (mg/dl)5.5±1.85.7±1.85.5±1.85.6±1.85.5±1.8
Hemoglobin (g/dl)10.9±1.611.2±1.611.4±1.611.1±1.611.2±1.6
Vascular access (%)
 Fistula71.942.752.661.159.7
 Graft12.532.823.419.517.9
 Catheter10.620.120.414.816.2
Employment (%)17.712.713.015.614.1
Education (high school or more) (%)34.346.144.739.239.5
Married (%)61.552.754.758.055.5
Living status (%)
  Family79.975.176.778.176.0
 Nursing Home4.16.55.04.94.4
  Alone15.217.317.416.218.8
Comorbid conditions (%)
 Coronary artery disease39.253.652.145.246.5
 Cancer10.611.611.110.912.1
 Other cardiovascular disease36.937.035.536.732.3
 Cerebrovascular disease15.519.318.317.016.6
 Congestive heart failure29.541.537.233.931.9
 Diabetes mellitus31.044.240.536.034.2
 Gastrointestinal bleeding5.17.97.46.25.6
 HIV/AIDS0.61.60.80.90.6
 Hypertension74.683.582.778.378.4
 Lung disease9.214.012.010.911.0
 Neurologic disorder9.213.311.910.79.9
 Psychiatric disorder13.122.722.217.216.2
 Peripheral vascular disease24.127.428.225.724.6
 Recurrent cellulitis6.910.69.18.28.1
  • Values expressed with a plus/minus sign are the mean ± SD.