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Table 2 Baseline characteristics of PD patients

From: Erythropoiesis-stimulating agent resistance and mortality in hemodialysis and peritoneal dialysis patients

PD patients ESA ≤4,000 (units/week) ESA >4,000 (units/week)
  Hb ≥11 (g/dl) Hb <11 (g/dl) Hb ≥11 (g/dl) Hb <11 (g/dl)
Number 204 91 113 53
Age (years) 52.0 (14.7) 50.6 (15.1) 57.9 (15.5) 49.8 (16.1)
Sex (%) men 64.2 65.9 73.2 60.4
Weight (kg) 73.1 (12.8) 73.5 (14.3) 77.8 (13.7) 77.9 (16.8)
ESA dose (units/week) 4,000 (2,000-4,000) 4,000 (2,000-4,000) 8,000 (6,000-8,000) 9,000 (8,000-12,000)
ERI (units/week/kg/Hb) 3.4 (1.4) 4.5 (1.8) 9.0 (4.4) 14.9 (8.5)
Primary kidney disease (%)     
- Diabetes mellitus 10.8 19.8 17.0 13.2
- Glomerulonephritis 18.1 17.6 17.9 17.0
- Renal vascular disease 7.8 8.8 21.4 13.2
- Other 63.2 53.8 43.8 56.6
Comorbidity (%)     
- Diabetes mellitus 13.2 19.8 23.9 15.1
- Malignancy 5.4 2.2 8.8 5.7
- Cardiovascular disease 19.6 17.6 31.9 20.8
Weekly Kt/V urea (Watson) 2.3 (0.6) 2.1 (0.4) 2.3 (0.6) 2.1 (0.5)
rGFR (ml/min/1.73 m2) 3.7 (2.0-5.6) 2.7 (1.0-3.8) 3.1 (1.2-5.1) 1.3 (0.5-3.3)
Nutritional status (SGA) (%)     
- Severely malnourished 0.6 0.0 0.0 0.0
- Mild-moderate 13.4 24.7 15.6 22.7
- Well-nourished 86.0 75.3 84.4 77.3
Laboratory values     
- Hemoglobin (g/dl) 12.4 (11.8-13.3) 9.7 (10.3-10.8) 12.4 (11.7-13.2) 10.0 (9.5-10.8)
- Albumin (g/l) 37.4 (4.7) 35.4 (6.0) 36.0 (5.5) 34.0 (6.1)
- Ferritin (μg/l) 138 (63–232) 186 (81–294) 99 (51–180) 218 (114–479)
- PTH (pmol/l) 11.6 (4.6-23.8) 10.8 (3.6-31.3) 12.1 (4.3-28.9) 16.4 (3.5-25.0)
- CRP (mg/l) 4.0 (3.0-8.0) 4.0 (3.0-14.0) 9.5 (5.0-16.3) 7.0 (3.0-11.0)
  1. Values are presented as mean (SD), median (IQR) or percentage.