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Table 1 Profile of patients whereas on conventional haemodialysis immediately before shifting to short daily haemodialysis

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

VariablesAll patientsFO ≤15%FO > 15%P value
(n = 297)(n = 118)(n = 102) 
FO (%ECV)§13.8 (5.1–22.1)6.2 (1.9–10.4)23.9 (17.8–30.0)
Age (years)57 (45–67)53 (39–63)61 (48–70)< 0.0001
Male gender, n (%)189 (63.6)70 (59.3)70 (68.6)0.16
Diabetes, n (%)128 (43.1)43 (36.4)52 (51.0)0.04
Charlson comorbidity index4 (2-4)3 (2-4)4 (2–4)0.018
Vintage (months)29 (13-61)33 (13-61)29 (16-70)0.38
HBsAg+, n (%)3 (1.0)1 (0.8)1 (1.0)1.00
Anti-HCV+, n (%)9 (3.0)4 (3.4)3 (3.0)1.00
Anti-HIV+, n (%)6 (2.0)4 (3.4)1 (1.0)0.39
Vascular access, n (%)
 Native AFV210 (70.7)97 (82.2)69 (67.6)0.018
 Graft13 (4.4)6 (5.1)2 (2.0)0.29
 Catheter74 (24.9)15 (12.7)31 (30.4)0.002
Treatment time (min/session)240 ± 10239 ± 10240 ± 100.36
Equilibrated KT/V1.28 ± 0.351.29 ± 0.371.27 ± 0.330.81
Body mass index (Kg/m2)25.5 ± 5.626.8 ± 6.224.0 ± 5.0< 0.0001
Body weight (Kg)71.0 ± 17.374.8 ± 18.867.3 ± 15.10.0003
UF rate (mL/hour/Kg)9.9 ± 3.59.9 ± 3.410.1 ± 3.60.71
Predialysis SBP (mmHg)139 ± 21138 ± 19141 ± 220.19
Predialysis DBP (mmHg)76 ± 1377 ± 1274 ± 140.018
Postdialysis SBP (mmHg)134 ± 20132 ± 18138 ± 220.008
Postdialysis DBP (mmHg)75 ± 1276 ± 1274 ± 130.12
Haemoglobin (g/dL)10.5 ± 1.910.9 ± 1.810.1 ± 1.90.002
Serum albumin (g/L)37.7 ± 4.839.1 ± 4.037.0 ± 5.20.0002
Phosphorus (mg/dL)5.1 ± 1.65.3 ± 1.55.1 ± 1.70.24
  1. Data are expressed as frequency (%), mean ± standard deviation or median (interquartile interval)
  2. FO fluid overload; ECV extracellular volume; AVF arteriovenous fistula; UF ultrafiltration; SBP systolic blood pressure; DBP diastolic blood pressure; § Data available in only 220 patients
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