Table 2.

Patient characteristics by region and uric acid concentration

Patient Characteristics (mean or %)EuropeJapan
Uric Acid >8.2 mg/dl (n = 349)Uric Acid ≤8.2 mg/dl (n = 2642)Uric Acid unavailable (Unavailable = 1117)Uric Acid >8.2 mg/dl (n = 571)Uric Acid ≤8.2 mg/dl (n = 1075)Uric Acid unavailable (Unavailable = 73)
Age (years) (mean)57.6 ± 15.763.5 ± 14.463.5 ± 14.959.5 ± 12.161.8 ± 13.761.0 ± 10.3
Body mass index (mean)24.5 ± 4.624.1 ± 4.524.3 ± 4.720.8 ± 3.220.4 ± 3.020.2 ± 2.5
Male (%)63.956.857.263.257.558.9
Vintage (mean)5.6 ± 5.95.3 ± 5.75.7 ± 6.47.6 ± 7.27.1 ± 6.68.8 ± 8.2
Serum LDL cholesterol (mg/dl) (mean)106.0 ± 40.5100.6 ± 38.596.4 ± 35.792.7 ± 31.193.5 ± 29.794.0 ± 28.7
Albumin-corrected calcium (mg/dl) (mean)9.7 ± 1.09.7 ± 0.99.7 ± 1.09.4 ± 0.99.5 ± 1.09.2 ± 0.8
Serum phosphorus (mg/dl) (mean)5.7 ± 1.95.3 ± 1.75.4 ± 1.96.0 ± 1.65.5 ± 1.55.3 ± 1.3
Serum albumin (g/dl) (mean)3.9 ± 0.53.8 ± 0.53.7 ± 0.53.9 ± 0.43.8 ± 0.43.5 ± 0.4
White blood cell count (103 cells per mm3) (mean)7.1 ± 2.26.9 ± 2.27.0 ± 2.36.1 ± 2.05.9 ± 1.86.2 ± 1.9
Serum creatinine (mg/dl) (mean)10.2 ± 2.99.0 ± 2.59.0 ± 2.511.9 ± 2.810.7 ± 2.911.1 ± 2.4
Single-pool Kt/V (mean)1.38 ± 0.331.41 ± 0.311.45 ± 0.301.34 ± 0.261.34 ± 0.291.48 ± 0.28
nPCR (g/kg per day) (mean)1.19 ± 0.271.09 ± 0.261.12 ± 0.271.11 ± 0.221.00 ± 0.221.05 ± 0.16
Vascular access
    AV fistula (%)79.378.274.490.790.695.3
    graft (%)7.18.510.76.56.73.1
    catheter (%)13.312.414.30.91.40.0
Residual renal function (%)35.829.029.416.617.923.1
Comorbidities
    coronary heart disease (%)32.433.442.924.525.526.0
    congestive heart failure (%)25.825.026.514.616.420.3
    cerebrovascular disease (%)12.716.817.912.315.96.3
    diabetes (%)19.523.121.422.530.523.4
Use of allopurinol (%)5.25.92.110.333.07.9
Use of diuretics (%)22.715.726.819.621.217.5
  • Based on the initial prevalent cross section of 5827 patients with duration of ESRD >3 months in DOPPS (Dialysis Outcomes and Practice Patterns Study) I (1996–2001) and II (2002–2004). nPCR, normalized protein catabolic rate; AV, arteriovenous.