Table 3. Laboratory results of patients based on the presence of fatigue and the bivariate analysis results.

Variable	Fatigue		OR	95% CI		P
	No	Yes		Lower	Upper
Kt/V			0.831	0.333	2.074	0.696**
Mean ± SD	1.49 ± 0.5	1.45 ± 0.39
Median (min.; max.)	1.6 (0.08; 2.68)	1.5 (0.75; 2.8)
Kt/V, n (%)						0.087
Major 1.2	38 (53.5)	33 (46.5)	1.00
Minor 1.2	8 (33.3)	16 (66.7)	2.30	0.87	6.07
Hemoglobin			0.896	0.737	1.090	0.271**
Mean ± SD	11.6 ± 1.8	11.1 ± 2.4
Median (min.; max.)	11.6 (5.1; 14.4)	11.3 (2.6; 15.3)
Albumin			1.023	0.344	3.044	0.967**
Mean ± SD	3.99 ± 0.32	3.99 ± 0.42
Median (min.; max.)	4 (3; 4.7)	4.03 (2.2; 4.98)
Urea pre-dialysis			0.996	0.985	1.008	0.537**
Mean ± SD	156.8 ± 38	152.3 ± 33.5
Median (min.; max.)	158.5 (94; 264)	149.4 (93.2; 226)
Urea post-dialysis			1.002	0.982	1.023	0.840**
Mean ± SD	51.3 ± 21.7	52.1 ± 18.1
Median (min.; max.)	48.4 (4.2; 134)	47.6 (26.6; 103)
Parathormone			1.000	0.998	1.002	0.571¢
Mean ± SD	299.7 ± 206.2	293.6 ± 267.8
Median (min.; max.)	257.8 (22.4; 759.4)	212.9 (33.4; 1620.9)
Ferritin			0.999	0.997	1.000	0.110**
Mean ± SD	349.3 ± 307.6	263.3 ± 201.1
Median (min.; max.)	258.6 (28.7; 1431.6)	200.2 (34.9; 792.8)
Calcium			0.727	0.413	1.280	0.270**
Mean ± SD	8.7 ± 0.7	8.6 ± 0.7
Median (min.; max.)	8.7 (7; 11)	8.5 (7.3; 10.8)
Phosphorus			0.851	0.665	1.090	0.201**
Mean ± SD	5.38 ± 1.77	4.94 ± 1.6
Median (min.; max.)	4.85 (1.8; 10.2)	5 (1.6; 9.6)
Potassium			0.899	0.532	1.520	0.695**
Mean ± SD	4.85 ± 0.77	4.79 ± 0.78
Median (min.; max.)	4.8 (3.5; 6.4)	4.61 (3.1; 7)

Chi-square test (χ²); **Student’s t-test; ^¢Mann-Whitney test.

SD = standard deviation; min = minimum; max = maximum; OR = odds ratio; CI = confidence interval.