Table 1.

Baseline characteristics of incident dialysis patients, 2001–2009: Withdrawal versus no withdrawal from dialysis

VariableWithdrawal from Dialysis (n=3339)No Withdrawal from Dialysis (n=42,842)
Age (yr)73.2±10.463.0±16.1
Age > 75 yr (%)51.526.9
Women (%)45.540.2
Race (%)
 White86.572.4
 Black1.13.5
 Asian2.66.0
BMI (kg/m2)26.5±6.927.4±7.0
Urban dweller (%)82.182.6
Hemodialysis (%)89.680.7
Primary ESRD diagnosis (%)
 GN6.312.0
 Diabetes33.735.0
 Renovascular disease26.118.9
 Othera18.920.3
Albumin (g/L)32.1±6.632.7±7.0
Hemoglobin (g/dl)102.4±17.5102.3±18.0
Late referral (%)b42.234.6
eGFR (ml/min per 1.73 m2)c9.5 (5.7)8.8 (5.2)
Early initiationd39.834.4
Comorbidity index2.4±2.21.9±2.1
Comorbid conditions (%)
 Coronary artery disease40.331.3
 Peripheral vascular disease25.017.6
 Cerebrovascular disease19.312.5
 Diabetes mellitus45.245.0
 Hypertension80.280.2
 Congestive heart failure27.222.8
 Lung disease15.711.7
 Malignancy/other serious disease30.019.2
  • Values expressed with a plus/minus sign are the mean ± SD. BMI, body mass index; eGFR, estimated GFR.

  • a Includes such diseases as multiple myeloma, amyloid, acute tubular necrosis, pyelonephritis, interstitial nephritis not specified, and gout.

  • b Defined as first seen by a nephrologist <90 days before initiation of dialysis.

  • c Calculated using the Modification of Diet in Renal Disease formula, reported as the median (interquartile range).

  • d Defined as eGFR > 10.5 ml/min per 1.73 m2 at the start of dialysis.