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Table 2 Changes in body composition by BIS assessment and selected laboratory parameters from the first to the sixth month on short daily haemodialysis

From: Association between extracellular volume control and survival in patients on short daily haemodialysis

VariablesMonth 0Month 6P value
 (n = 297)(n = 256) 
FO (%ECV)§13.8 (5. 1-22.1)7.6 (− 0. 4-15.3)< 0.0001
Fat mass (%)§36 (27–43)38 (29–44)0.13
Lean mass (%)§47 (39–59)46 (37–56)0.38
Dry weight (Kg)71.0 ± 17.371.2 ± 16.60.91
Predialysis SBP (mmHg)139 ± 21133 ± 210.0011
Predialysis DBP (mmHg)76 ± 1372 ± 120.0004
Postdialysis SBP (mmHg)134 ± 20129 ± 200.0018
Postdialysis DBP (mmHg)75 ± 1272 ± 120.0016
Haemoglobin (g/dL)10.5 ± 1.910.9 ± 2.00.050
Serum albumin (g/L)37.7 ± 4.839.6 ± 4.1< 0.0001
Predialysis BUN (mg/dL)57.3 ± 19.453.6 ± 17.90.035
Phosphorus (mg/dL)5.1 ± 1.65.1 ± 1.50.24
Calcium (mg/dL)9.1 ± 0.89.1 ± 0.80.76
Potassium (mEq/L)5.2 ± 0.95.1 ± 0.80.19
Sodium (mEq/L)138 ± 4137 ± 50.29
HCO3- (mEq/L)20.9 ± 2.922.4 ± 3.00.031
  1. Data are expressed as mean ± standard deviation or median (interquartile interval)
  2. FO fluid overload; ECV extracellular volume; BUN blood urea nitrogen; SBP systolic blood pressure; DBP diastolic blood pressure; § Data available in only 220 patients at month 0 and 229 patients at month 6
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