Skip to main content

Table 1 Descriptive statistics by DOPPS phase

From: Changes in practice patterns in Japan from before to after JSDT 2013 guidelines on hemodialysis prescriptions: results from the JDOPPS

Variable Phase 3
April 2006
Phase 4
August 2009
Phase 5
April 2013
Phase 6
August 2017
N 1765 1633 1731 1753
Mean age, years 62.5 (12.5) 64.6 (12.1) 65.2 (12.2) 65.4 (11.8)
Male, % 60% 62% 65% 67%
Mean years on dialysis 8.2 (7.1) 8.3 (7.5) 7.3 (7.6) 7.1 (8)
Mean sp Kt/V 1.35 (0.27) 1.40 (0.28) 1.42 (0.28) 1.49 (0.29)
sp Kt/V ≥ 1.2, % 71% 77% 79% 85%
Mean dialysis treatment duration, minutes 238.2 (30.6) 236.4 (28.4) 238.4 (27.2) 243.3 (26.7)
Mean utrafiltration rate, mL/kg/hr 11.3 (4.1) 8.6 (3.5) 8.7 (3.5) 8.4 (3.3)
Mean blood flow rate, mL/min 198.3 (27) 202.2 (27.5) 207.9 (31.1) 218.4 (35.3)
Blood flow rate ≥ 200 mL/min, % 65% 72% 78% 85%
Hemodiafiltration use, % 6% 6% 8% 23%
Comorbidities, %
 Coronary heart disease 41% 33% 24% 25%
  Congestive heart failure 25% 21% 16% 16%
  Cerebrovascular disease 13% 15% 11% 17%
  Other cardiovascular disease 32% 32% 21% 21%
  Peripheral vascular disease 17% 20% 13% 12%
  Hypertension 73% 79% 80% 85%
  Diabetes 32% 35% 40% 43%
  Gastrointestinal bleeding 4% 5% 4% 2%
  Neurologic disease 10% 9% 6% 6%
  Psychiatric disorder 3% 6% 4% 3%
  Recurrent cellulitis 4% 5% 3% 3%
  Cancer, non-skin 9% 11% 10% 12%
  1. Shown are mean values (standard deviation) or percent prevalence of the indicated characteristic