Table 1.

Baseline data in control and IDPN groupsa

ParameterControl (n = 93)IDPN (n = 93)
Age (yr; mean ± SD)67.2 ± 10.868.8 ± 9.9
Gender ratio (M/F)0.900.94
Diabetes (n [%])19 (20)26 (27)
Comorbidities (n [%])
    chronic infection1 (1)3 (3)
    cardiovascular event16 (17)19 (20)
    congestive heart failure10 (11)16 (17)
    liver insufficiency3 (3)1 (1)
    respiratory insufficiency7 (8)7 (8)
    cancer6 (6)9 (10)
    no comorbidity57 (61)43 (46)
Karnofsky score (mean ± SD)66.0 ± 16.865.0 ± 13.9
Dialysis vintage (mo; mean ± SD)109 ± 10484 ± 91
Dialysis time (h/wk; mean ± SD)12.8 ± 1.913.3 ± 2.8
Highly permeable membrane (n [%])55 (59)49 (53)
Hemodiafiltration/hemodialysis0.160.13
Residual diuresis >500 ml/d (n [%])4 (4)4 (4)
Predialysis blood urea (μmol/L; mean ± SD)19.2 ± 7.319.1 ± 6.7
Kt/V urea (mean ± SD)1.7 ± 0.31.7 ± 0.3
nPNA (g/kg per d; mean ± SD)1.09 ± 0.401.10 ± 0.33
Hemoglobin (g/dl; mean ± SD)10.6 ± 1.310.7 ± 1.3
BMI (mean ± SD)22.4 ± 3.723.1 ± 4.7
Serum albumin (g/L; mean ± SD)31.5 ± 3.731.6 ± 4.4
Serum prealbumin (mg/L; mean ± SD)239 ± 55240 ± 49
Serum C-reactive protein (mg/l, median[min to max])11 (0.5 to 168)10 (0.5 to 197)
Predialysis creatinine (μmol/L; mean ± SD)652 ± 178642 ± 177
Plasma cholesterol (mmol/L; mean ± SD)4.47 ± 1.154.54 ± 1.25
Plasma triglycerides (mmol/L; mean ± SD)1.49 ± 0.641.56 ± 0.87
Serum ALAT (UI/L; mean ± SD)18.5 ± 10.618.6 ± 10.4
Serum GGT (UI/L; mean ± SD)50.4 ± 46.561.2 ± 118.0
  • a No significant difference was found between the two groups. ALAT, alanine amino transferase; BMI, body mass index; IDPN, intradialytic parenteral nutrition; GGT, γ -glutamyl transferase; nPNA, normalized protein nitrogen appearance.