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Table 3 Characteristics of patients at the 6th month on short daily haemodialysis according to the hydration status

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

VariablesFO ≤15%FO > 15%P value
 (n = 168)(n = 61) 
FO (%ECV)3.5 (−2. 4-9.0)22.3 (17. 9-27.1)
Age (years)55 (41–66)61 (47–73)0.086
Male gender (%)57.770.50.092
Diabetes (%)37.549.20.13
Charlson comorbidity index3 (2-4)4 (2-4)0.066
Vintage (months)28 (11-60)39 (17-70)0.13
Vascular access (%)
 Native AFV74.462.30.098
 Graft3.08.20.14
 Catheter22.629.50.30
HD frequency (%)
 5 sessions/week41.155.70.052
 6 sessions/week58.944.3 
Treatment time (min/week)814 ± 189779 ± 1390.19
Standard KT/V3.45 ± 1.013.15 ± 0.850.067
Body mass index (Kg/m2)26.1 ± 5.823.6 ± 5.40.003
Dry weight (Kg)72.0 ± 16.468.9 ± 17.10.21
UF rate (mL/hour/Kg)10.8 ± 3.210.5 ± 3.80.58
Pre-HD SBP (mmHg)133 ± 21133 ± 210.96
Pre-HD DBP (mmHg)73 ± 1169 ± 140.053
Post-HD SBP (mmHg)128 ± 19133 ± 220.086
Post-HD DBP (mmHg)72 ± 1170 ± 140.18
Haemoglobin (g/dL)11.2 ± 2.010.1 ± 1.80.0002
Serum albumin (g/L)40.0 ± 3.738.3 ± 4.60.004
Phosphorus (mg/dL)5.3 ± 1.54.8 ± 1.30.062
  1. Data are expressed as 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
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