Table 1. Descriptive data for patients on haemodialysis.

Characteristics:	Participants (n = 37)	Frequencies
Age, mean ± SD (range)	52.16 ± 13.40
20–40	14%	5
41–50	24%	9
51–59	38%	14
60–69	19%	7
70+	5%	2
Male gender	70.3%	26
Female gender	29.7%	11
Time on haemodialysis (months)	20.38 ± 22.45
Original disease:
Hypertensive nephrosclerosis	49%	18
Diabetic nephropathy	19%	7
Chronic glomerulonephritis	12%	4
Polycystic kidney disease	8%	3
Unknown	13%	5
Kt/V	≥ 1.2