Table 1. Clinical characteristics of the study patients^*.

Clinical parameter	Value
Age (years)	55.8 ± 16.5
Age ≥ 60 years (%)	50.0
Female gender (%)	45.2
CKD cause (%)
Undetermined	23.8
Multifactorial	11.9
diabetic nephropathy	11.9
chronic glomerulonephritis	11.9
polycystic kidney disease	9.5
hypertensive nephrosclerosis	4.8
Other	26.2
Comorbidities (%)
systemic arterial hypertension	64.3
diabetes mellitus	21.4
Mean HD session length (min)	220.0 ± 23.9
HD session length ≥ 240 min (%)	52.4
Mean HD time (years)	4.8 ± 4.8

*Sample size: 42 patients with CKD on regular hemodialysis.

CKD, chronic kidney disease; HD, hemodialysis.

Values are mean ± standard deviation or relative frequency (%).