Fluid overload in hemodialysis patients: a cross-sectional study to determine its association with cardiac biomarkers and nutritional status

Table 1 Fluid status assessment in participating centers

Patient characteristic	All centers	Center 1	Center 2	Center 3	P-value
Patient characteristic	(n = 244)	(n = 126)	(n = 63)	(n = 55)	P-value
Dry weight [kg]	75.0 ± 19.2	72.6 ± 17.4	77.2 ± 20.4	80.3 ± 19.2	0.011
Body mass index [kg/m²]	25.9 ± 5.7	25.0 ± 5.4	26.5 ± 6.1	27.4 ± 5.7	0.023
UF [L]	1.8 ± 1.3	1.5 ± 1.0	2.3 ± 1.4	1.9 ± 1.3	<0.001
Fluid overloaded pre-HD	39%	43%	32%	36%	0.282
FO pre-HD [L]	2.5 ± 2.2	2.6 ± 2.3	2.6 ± 2.3	2.3 ± 1.8	0.639
FO pre-HD [% ECW]	12.6 ± 10.1	13.1 ± 10.8	12.7 ± 9.9	11.6 ± 8.6	0.556
FO post-HD [% ECW]	2.9 ± 12.3	4.6 ± 12.4	0.9 ± 12.7	1.4 ± 11.5	0.092
ECW pre-HD [L]	18.7 ± 4.5	18.2 ± 4.8	18.6 ± 4.2	20.1 ± 3.7	0.046

Abbreviations: UF ultrafiltration, FO fluid overload, ECW extracellular water, HD hemodialysis.
Percentage for categorical data, mean ± standard deviation for normally distributed numerical variables, median and interquartile ranges for non-normally distributed numerical variables.

ISSN: 1471-2369